Re: [Emc-users] Fitting of guide bush and pillars
fre 2024-06-14 klockan 07:27 -0500 skrev Stuart Stevenson: > Gentlemen, > The press or temperature or impact (a BFH) question is - depends on what > equipment you have to facilitate the installation. > Liquid nitrogen is better than dry ice. Dry ice is ~-125F and liquid > nitrogen is ~320F. 2 inch steel will shrink ~.006in @ -320F from room > temperature. > A 2 inch bushing will rattle into a .002 undersize bore. You will still > have bushing ID distortion no matter how small the interference fit. Take > care of the distortion after the installation. > > The more important question is 'what is the running temperature of the > assembly and the coefficient of expansion of the materials'. If you are > putting a steel bushing in an aluminum plate you will want more > interference. Used brute force a hydraulic press. Some scratches on the bushing outside but gues maybe it is on the pillars. > To answer the asked question I would say "Use a cylinder hone to size the > bore of the bushing as required". You don't want a glaze breaker ball hone. > You want to use a 4 stone cylinder hone. Bought 2 stone cylinder hone. Guess it work equally well as 4 stone hone but have to use it twice as long time. Already got one of the pillars inside, remove it fast and there will be a plopping sound. Regards Nicklas Karlsson _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] remora spi wiring Mks-Sbase V1.3
hello, I have a Mks-Sbase V1.3 Where does the wire labeled 'px.x' go? (refer to remora-docs.readthedocs.io/en/latest/har...e/SPI/Mks-Sbase.html figure 1 ) It comes from rpi gpio 25 thx tjtr33 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fitting of guide bush and pillars
Gentlemen, The press or temperature or impact (a BFH) question is - depends on what equipment you have to facilitate the installation. Liquid nitrogen is better than dry ice. Dry ice is ~-125F and liquid nitrogen is ~320F. 2 inch steel will shrink ~.006in @ -320F from room temperature. A 2 inch bushing will rattle into a .002 undersize bore. You will still have bushing ID distortion no matter how small the interference fit. Take care of the distortion after the installation. The more important question is 'what is the running temperature of the assembly and the coefficient of expansion of the materials'. If you are putting a steel bushing in an aluminum plate you will want more interference. To answer the asked question I would say "Use a cylinder hone to size the bore of the bushing as required". You don't want a glaze breaker ball hone. You want to use a 4 stone cylinder hone. just my 2 cents regards Stuart On Thu, Jun 13, 2024 at 8:58 PM BRIAN GLACKIN wrote: > Get a temperature differential of 100C between the two parts (outer hotter) > to aid in placement. > > For work we fit large bronze bushings in crusher components. Pack in dry > ice for about 2-4 hrs for a 50kg bushing. Slide into inner bore quickly. > > In cold weather we will also warm up the outer assembly to insure install > room prior to Fitting. > > > > On Tue, Jun 11, 2024 at 8:29 AM Nicklas SB Karlsson wrote: > > > Anyone here have experience with press fitted guide bushing and pillar? > > > > Tried with a somewhat undersized hole so that a few tonnes of pressure is > > needed for the guide bushing. Then of course > > the bushing is squeezed and the pillar will not fit inside without some > > force. Make hole as exact as possible then this > > is not a problem but there is a risk bushing will get lose. > > > > > > Regards Nicklas Karlsson > > > > > > > > ___________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Addressee is the intended audience. If you are not the addressee then my consent is not given for you to read this email furthermore it is my wish you would close this without saving or reading, and cease and desist from saving or opening my private correspondence. Thank you for honoring my wish. ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Looking for suggestions about servo drives (and 3phase AC to 1phase AC converter)
Hello! I am doing retrofits of 2 Biesse CNC machines/ They have Yaskawa CACR-SRnnBE12G-E servodrives and I am getting different error messages about "main circuit voltage error" and similar (A.03, A.20 and A.40 if anyone wants to know details) and in the manual's troubleshooting section all of them have "replace servopack" as the suggested solution. There are brushless AC servo motors with quadrature encoders. Motor rated power is 2 kW, 1.5kW and 0.75kW I am looking for replacement servo drives. I was thinking about Mesa 8i20, but am not sure if I can get it to work properly with only encoder feedback (I have some experience with getting the BLDC component to work, but servos on my router have hall sensors that made the init process a lot easier). There are few places in manuals that mention 8i21. Is it available? What motors is it meant for? Is there any not-too-expensive alternative I could use? I really would appreciate something with pid autotuning. And one more totally unrelated question - I would like to acquire 3phase to 1phase AC converter. I have 12kW solar inverter with 3 phase output and heatpump with 1phase input (there is 25A fuse so that would be 220V*25A = 5,5 kW power) and that does not allow me to optimize on self-consumption - I want to modulate heatpump's consumption based on inventer's production (they both have I/O for this purpose). I found out about Scott transformers but that will have 2phase output that I have to load equally. Should I use a cheap off-grid solar inverter and feed 3-phase rectified DC to inputs? I am sure I am not the first with a similar issue, there must be some simple solution. Viesturs _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fitting of guide bush and pillars
Get a temperature differential of 100C between the two parts (outer hotter) to aid in placement. For work we fit large bronze bushings in crusher components. Pack in dry ice for about 2-4 hrs for a 50kg bushing. Slide into inner bore quickly. In cold weather we will also warm up the outer assembly to insure install room prior to Fitting. On Tue, Jun 11, 2024 at 8:29 AM Nicklas SB Karlsson wrote: > Anyone here have experience with press fitted guide bushing and pillar? > > Tried with a somewhat undersized hole so that a few tonnes of pressure is > needed for the guide bushing. Then of course > the bushing is squeezed and the pillar will not fit inside without some > force. Make hole as exact as possible then this > is not a problem but there is a risk bushing will get lose. > > > Regards Nicklas Karlsson > > > > ___________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Trying to set up a 7I80HD, trouble with network
On Thu, 13 Jun 2024, Ed wrote: Date: Thu, 13 Jun 2024 19:26:27 -0500 From: Ed Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: [Emc-users] Trying to set up a 7I80HD, trouble with network I did this a few years ago on another machine but evidently did not take enough notes. Using 2.9.2 . I get an error of "Network is unreachable" when I use Mesaflash to initialize the card from the command line. Any hints? Thanks, Ed. _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users What IP address is the 7I80 set for and what does the command: ip a return Peter Wallace Mesa Electronics _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Trying to set up a 7I80HD, trouble with network
I did this a few years ago on another machine but evidently did not take enough notes. Using 2.9.2 . I get an error of "Network is unreachable" when I use Mesaflash to initialize the card from the command line. Any hints? Thanks, Ed. _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Fitting of guide bush and pillars
Anyone here have experience with press fitted guide bushing and pillar? Tried with a somewhat undersized hole so that a few tonnes of pressure is needed for the guide bushing. Then of course the bushing is squeezed and the pillar will not fit inside without some force. Make hole as exact as possible then this is not a problem but there is a risk bushing will get lose. Regards Nicklas Karlsson ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] [Emc-developers] distutils - sysconfig
On Tue, 28 May 2024 at 19:16, Stuart Stevenson wrote: > > Configuring linuxcnc gives me a deprecation warning about distutils and > tells me to use sysconfig instead. > On what OS? I just ran ./configure on my 2.9.2 / bookworm folder and there was no such warning. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool Offset Parameters?
Adding offsets with g43.1 or g43.2 are not tracked AFAIK. Yes I agree it's not the best - for a lathe we tracked wear setting in the tool remap code. But getting that info to the GUI ends up messy - I think I used a HAL pin in my test case. But we are seriously running out of active developers that know that part of the code. Chris M From: Todd Zuercher via Emc-users Sent: May 29, 2024 6:58 PM To: Enhanced Machine Controller (EMC) Cc: Todd Zuercher Subject: [Emc-users] Tool Offset Parameters? I was just trying to figure out something and found in my opinion the Linuxcnc parameters for #5401-5409 seem to be very broken. The parameters only return the stored offsets for what ever tool number is loaded. This seems very wrong to me, because the tool number loaded may have nothing to do with what tool offsets are actually applied. I've often used a different tool offset with a tool number, such as for example using tool offset #102 with tool #2 to touch off on a feature of a profile tool rather than the tool tip. But parameter #5403 will display the offset for the loaded tool number reguardless of what tool offset is actually applied using G43Hn or if additional offsets are applied using G43.1 or G43.2). This seems like a big error to me. Shouldn't these parameters return the offsets (or total offsets) applied by G43, G43.1, and G43.2 and not simply what is saved for the loaded tool number? And if the developers feel the current behavior is correct, then how is a person supposed to look up what the current applied tool offset in fact is when it doesn't equal what is saved for the current tool number? Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Tool Offset Parameters?
I was just trying to figure out something and found in my opinion the Linuxcnc parameters for #5401-5409 seem to be very broken. The parameters only return the stored offsets for what ever tool number is loaded. This seems very wrong to me, because the tool number loaded may have nothing to do with what tool offsets are actually applied. I've often used a different tool offset with a tool number, such as for example using tool offset #102 with tool #2 to touch off on a feature of a profile tool rather than the tool tip. But parameter #5403 will display the offset for the loaded tool number reguardless of what tool offset is actually applied using G43Hn or if additional offsets are applied using G43.1 or G43.2). This seems like a big error to me. Shouldn't these parameters return the offsets (or total offsets) applied by G43, G43.1, and G43.2 and not simply what is saved for the loaded tool number? And if the developers feel the current behavior is correct, then how is a person supposed to look up what the current applied tool offset in fact is when it doesn't equal what is saved for the current tool number? Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Acceleration Settings?
A few quick tests to try to narrow this down: 1. Does running the same command with G61 fix the issue? 2. In G64, if you call a subroutine via MDI that does multiple moves, is just the last move at reduced acceleration? 3. Does the last move of a program accelerate slowly as well? If the answer to some or all of these is yes, then it might be the trajectory planner's blending behavior. In G64 mode, incoming motions to the trajectory planner are blended with parabolic blends by default (the old linuxcnc 2.6 and earlier method). Parabolic blending works by dropping accelerations of segments to 50% of max, so that prev / next segments can be run simultaneously without violating acceleration constraints. Unfortunately, the last motion is stuck waiting for a "next" motion that will never come, so it ends up at 50% of max acceleration. The fix for this is not trivial, but you may be able to work around it by doing your testing in G61. -Rob On Thu, May 16, 2024 at 8:58 AM Todd Zuercher via Emc-users < emc-users@lists.sourceforge.net> wrote: > Maybe I spoke too soon. I did a little more searching and found that > there is an issue with MDI commands that they are executed with half of the > acceleration of the settings. Is this intentional for some reason, or is > it a bug? > > I confirmed with this machine that yes, regular G-code programs and > jogging moves use the correct acceleration limits, but MDI commands only > use half. Why is that? 2.7 didn't have this behavior. > > It kind of makes testing machine settings a pain in the... > > Todd Zuercher > P. Graham Dunn Inc. > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > -Original Message----- > From: Jon Elson > Sent: Wednesday, May 15, 2024 7:20 PM > To: emc-users@lists.sourceforge.net > Subject: Re: [Emc-users] Acceleration Settings? > > [EXTERNAL EMAIL] Be sure links are safe. > > On 5/15/24 12:23, Todd Zuercher via Emc-users wrote: > > I'm trying to figure out something goofy that seems to be going on with > my acceleration settings. > > I'm running Linuxcnc 2.9.0 and Axis ui. > > I have all of the max_acceleration settings set for 20.0 (and > stepgen_maxaccel = 25), and for some reason everything only moves with an > acceleration of 10 ipsps for G0 and G1 moves (confirmed with Halscope), but > jogging does go at 20. Is there normal behavior or am I missing some > setting somewhere that is limiting the acceleration? > > > In the latest LinuxCNC there are TWO places that have accel and max > velocity settings. Jogging is in the JOINT_x part, and CNC moves are in > the AXIS_x section. In general, you want the same settings in both JOINT > and AXIS sections. > > Jon > > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > > _______ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Leaving my roles in LinuxCNC
It's been a long time since I actively participated in this project and I want to let you all know that I have begun to remove myself from roles in various places including sourceforge & github. I'm in private discussions to ensure this happens without disrupting the project. To the developers & community: Thank you so much for letting me play a part in this project. It was an important chapter of my life (that started around 20 years ago!) and I wish you all the best for the future. I hope and trust you'll continue to take this project in good directions. I wish you all the best. Note: Please send any replies privately to jepler AT gmail.com. This address is no longer regularly monitored for messages and I will unsubscribe from the lists after this message goes out. Jeff _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tooloffset on Hal Pin?
> On 28 May 2024, at 18:27, Todd Zuercher via Emc-users > wrote: > > I tried to post this message las Friday, and a couple of times over the > weekend and it kept bouncing. What was up with that? I had the same problem. I was putting it down to sourceforge and gmail having a falling-out. But you don’t seem to be on Gmail _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tooloffset on Hal Pin?
I tried to post this message las Friday, and a couple of times over the weekend and it kept bouncing. What was up with that? I think I was able to get an acceptable solution this morning from the forum by Aciera, here. https://forum.linuxcnc.org/24-hal-components/52747-custom-hal-component?start=0 And was able to use a user space python component to poll the tool table offsets I need and place them on hal pins. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Todd Zuercher via Emc-users Sent: Tuesday, May 28, 2024 8:40 AM To: Enhanced Machine Controller (EMC) Cc: Todd Zuercher Subject: [Emc-users] Tooloffset on Hal Pin? [EXTERNAL EMAIL] Be sure links are safe. Is there a good way to read the values of multiple tool offsets from the tool table to hal pins? For example I want to have 8 hal pins (offset-z1, offset-z2, offset-z3...) that would show the values saved in the tool table for (Tool#1 Z offset, Tool#2 Z offset, Tool#3 Z offset...). Loading each tool offset one at a time so it can then be read from #5403, then writhing that to a hal pin using M68, is just not going to cut it. I want to have all of the 8 different tool offsets I'm using expressed as hal pins at the same time, from machine start up, without user input or having to execute a g-code command. No I am not using the tool offsets in a conventional manor. The 8 offsets I'm using will be applied simultaneously to each of the 8 different Z axis joints for the 8 spindles on my gang router. (The machine will never use a G43 or T code in a normal g-code file) I do however want to be able to use G10 commands to set the values for each offset, both for manual adjustments, and probing routines. Unfortunately I don't think I'm capable of writing some fancy hal component that reads the tool table then writes the appropriate values to 8 different hal pins. (For me building a simple Python handler file that almost sort of works for a GladeVCP by cutting, pasting, and modifying excerpts of example code is daunting task that takes me days of fumbling around with.) Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tooloffset on Hal Pin?
> On 28 May 2024, at 17:18, Todd Zuercher via Emc-users > wrote: > > Is there a good way to read the values of multiple tool offsets from the tool > table to hal pins? Did you try the Python component that Aciera posted on the forum? _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Tooloffset on Hal Pin?
Is there a good way to read the values of multiple tool offsets from the tool table to hal pins? For example I want to have 8 hal pins (offset-z1, offset-z2, offset-z3...) that would show the values saved in the tool table for (Tool#1 Z offset, Tool#2 Z offset, Tool#3 Z offset...). Loading each tool offset one at a time so it can then be read from #5403, then writhing that to a hal pin using M68, is just not going to cut it. I want to have all of the 8 different tool offsets I'm using expressed as hal pins at the same time, from machine start up, without user input or having to execute a g-code command. No I am not using the tool offsets in a conventional manor. The 8 offsets I'm using will be applied simultaneously to each of the 8 different Z axis joints for the 8 spindles on my gang router. (The machine will never use a G43 or T code in a normal g-code file) I do however want to be able to use G10 commands to set the values for each offset, both for manual adjustments, and probing routines. Unfortunately I don't think I'm capable of writing some fancy hal component that reads the tool table then writes the appropriate values to 8 different hal pins. (For me building a simple Python handler file that almost sort of works for a GladeVCP by cutting, pasting, and modifying excerpts of example code is daunting task that takes me days of fumbling around with.) Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Vevor 12 nm 90 v stepper servo
On 5/23/24 11:42, Dave Engvall wrote: Hi, Don’t know yet if I’m going to need this much power/torque but thot I’d ask anyway. Does anyone have opinions/experience with these? Tnx. Not this particular one, and I'm confused. The specs say up to 1000 volts in a couple places, one reviewer says he is feeding that controller 220 volts, the text in a couple other places says up to 100 volts DC. Within the 100 volt limit it should move you machine faster that a servo ever did, and more accurately. It just that a 100 volt dc limit implies a 71 volt ac src. It might be hard to find one of those with an 800 watt or more capacity IF that limit is the case. Super if the guy who says he's feeding it 220 AC isn't lying. That's also a heck of a good price. I have a similar 8NM motor and similar controller wearing an "rtelligent" label I'm going to put on the Z of my GO704. with a 1500 watt, 90 volt, 16 amp supply to run it. This controller says 18 to 80 volts AC or 18 to 110 volts DC, so feeding it 90 DC s/b fine. I'd verify I had or can get the psu it needs, then offer the card, it can do the job. https://www.vevor.com/dc-stepper-motor-c_11221/2-phase-nema34-12nm-1712oz-in-closed-loop-stepper-servo-motor-hybrid-driver-cnc-p_010367219430?utm_source=taboola_medium=paid.cpc_native_campaign=taboola_dco_rt=GiBtwkCwiozAXA5Si6kNfSP3KvfDhFpOKrnj6DsAfV6lhiDm9V8o4eyxs5zi_7VyMPPiPQ#tblciGiBtwkCwiozAXA5Si6kNfSP3KvfDhFpOKrnj6DsAfV6lhiDm9V8o4eyxs5zi_7VyMPPiPQ VEVOR Nema34 12Nm Closed Loop Stepper Servo Motor 2 Phase Hybrid Driver CNC Kit vevor.com _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Vevor 12 nm 90 v stepper servo
Looks to be basically the same as these. https://www.omc-stepperonline.com/ts-series-12-0-nm-1699-68oz-in-1-axis-closed-loop-stepper-cnc-kit-nema-34-motor-driver-1-cl86t-s120-v41 I have some of the much smaller NEMA23 version drives and motors from Stepperonline. I am only just starting testing with them, so I don't have a lot of input to offer, other than they seem to work very well (so far.) I also had one motor that had an encoder issue. It behaved very oddly, until I figured that out. (Sometimes almost running away before alarming and shutting down the drive.) The encoder wheel had a sticky blob of goo smeared on it, cleaning it off fixed it though. I did manage to kill one of them (accidentally connected the power supply reversed.) And a brief autopsy reviled that the board inside the drive is labeled Leadshine with Leadshine part numbers. And the drive's software for setting up, has Leadshine written all over it. So it looks like Leadshine or their suppliers are selling to multiple resellers with similar parts (although with possibly different hardware options.) Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Dave Engvall Sent: Thursday, May 23, 2024 11:41 AM To: Enhanced Machine Controller (EMC) Subject: [Emc-users] Vevor 12 nm 90 v stepper servo [EXTERNAL EMAIL] Be sure links are safe. Hi, Don’t know yet if I’m going to need this much power/torque but thot I’d ask anyway. Does anyone have opinions/experience with these? Tnx. https://www.vevor.com/dc-stepper-motor-c_11221/2-phase-nema34-12nm-1712oz-in-closed-loop-stepper-servo-motor-hybrid-driver-cnc-p_010367219430?utm_source=taboola_medium=paid.cpc_native_campaign=taboola_dco_rt=GiBtwkCwiozAXA5Si6kNfSP3KvfDhFpOKrnj6DsAfV6lhiDm9V8o4eyxs5zi_7VyMPPiPQ#tblciGiBtwkCwiozAXA5Si6kNfSP3KvfDhFpOKrnj6DsAfV6lhiDm9V8o4eyxs5zi_7VyMPPiPQ VEVOR Nema34 12Nm Closed Loop Stepper Servo Motor 2 Phase Hybrid Driver CNC Kit vevor.com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
Great! Good to see your gut feeling was at least close. So nice to see a problem fixed w/o having to throw lots of $$ at it. D > On May 20, 2024, at 6:26 AM, Todd Zuercher via Emc-users > wrote: > > I did to exactly that. With the dial indicator on the ends vs the center, it > moved 10 times more in the center of the gantry than it did on the ends. I > will be the 1st to agree that the servo tuning could probably be better. But > this thing really is(was) a wet noodle. At 12ft long, with the ends > disconnected from the ball screws, +/-1 inch differences between the ends of > the gantry wasn't difficult to achieve. The two servos driving them really > interact very little and behave independently of each other with one not > really affecting the tune of the other. More than likely this has been the > true root cause of the majority of my servo tuning/carving issues with this > machine since day 1. (We bought it about 15yrs ago.) Originally the > machine's two ends were driven by rack and pinions with a 12ft long torque > tube connected between the pinion gears. I had been blaming most of the > wobble problems on torsional twisting of tube, belt squirm on the 7":1/2" > sprockets on the belt reduction pullies for the servo, and a huge inertia > imbalance for the servo, being used with a gear ratio more appropriate for a > stepper motor. > > While I kind of liked the idea of using cable trussing, my colleges did not. > So we decided to go ahead with the steel tubing we had on hand. > > That said, I a cut a piece of the 2x4x1/8" wall steel tubing, drilled holes > in it spaced 1ft apart and mounted it on edge on the back of the beam. It > has made a huge difference, and now the gantry no longer wobbles when homing > and hitting the center behaves approximately the same as hitting it on the > ends. > > Todd Zuercher > P. Graham Dunn Inc. > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > -Original Message- > From: Chris Albertson <mailto:albertson.ch...@gmail.com>> > Sent: Tuesday, May 14, 2024 9:26 PM > To: Enhanced Machine Controller (EMC) <mailto:emc-users@lists.sourceforge.net>> > Subject: Re: [Emc-users] Beam Stiffening? > > [EXTERNAL EMAIL] Be sure links are safe. > > I think I fell for the “beam is bending” idea too. It might be. The way > to find out is to measure the beam center with the dial indicator and then > measure the ends of the beam. It might be that the entire beam is moving > > Is the gantry belt driven? Long belts can act like springs. The solution > is wider belts. It is easy to see that a belt that is twice as wide is twice > as stiff. > > I’d measure movement at the ends before any more thinking about the beam. > > As for modifying the beam, you have to model it. Guessing and “eyeball > engineering” generally does not work well. Any fix is going to be very > expensive. It is best to know it will work. > > > Everything that you add to that beam also adds mass. Mass is what you want > to get rid of. > > > > > >> On May 14, 2024, at 1:56 PM, gene heskett wrote: >> >> On 5/14/24 14:34, Eric Keller wrote: >>> Do something cheap because I'm not convinced it's the beam. I've >>> done troubleshooting on things like this, and sometimes it's >>> stiffness and sometimes it's not stiffness. But it really doesn't >>> make sense that it would sit there and ring after a move, so you also >>> may have some tuning to do. Possibly a notch filter? >>> Eric Keller >>> Boalsburg, Pennsylvania >>> On Mon, May 13, 2024 at 4:50 PM Todd Zuercher via Emc-users >>> wrote: >>>> >>>> Anyone have any brilliant ideas to stiffen a woefully inadequate cross >>>> beam on a gantry router without adding too much mass? What is there now >>>> is a 4" x 8" rectangular 3/8" walled extrusion that is 145" long. >>>> >>>> Under normal jogging commands the two servos control the ends of this >>>> gantry reasonably well, but while the axis is homing the thing shakes and >>>> wobbles terribly bad. >> >> This, on 3rd or 4th read, sounds as if the two servo's are not in tune with >> each other. Tuning servo's is not my strong suit, (and the only servo I had >> was destroyed by the new autotune pid in linuxcnc, it found settings that >> mde it ocillate and fried a $125 motor in around a minute. But this would be >> a lot easier to synchronize if stepper/servo's were used. Rigged with a home >> switch, maybe a prox switch since
Re: [Emc-users] [Emc-developers] vismach example movies
On Wed, 22 May 2024 at 20:14, Stuart Stevenson wrote: > Gentlemen, > The wikiQuick links to vismach movies > links do not work. Which link? -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Vevor 12 nm 90 v stepper servo
Hi, Don’t know yet if I’m going to need this much power/torque but thot I’d ask anyway. Does anyone have opinions/experience with these? Tnx. https://www.vevor.com/dc-stepper-motor-c_11221/2-phase-nema34-12nm-1712oz-in-closed-loop-stepper-servo-motor-hybrid-driver-cnc-p_010367219430?utm_source=taboola_medium=paid.cpc_native_campaign=taboola_dco_rt=GiBtwkCwiozAXA5Si6kNfSP3KvfDhFpOKrnj6DsAfV6lhiDm9V8o4eyxs5zi_7VyMPPiPQ#tblciGiBtwkCwiozAXA5Si6kNfSP3KvfDhFpOKrnj6DsAfV6lhiDm9V8o4eyxs5zi_7VyMPPiPQ VEVOR Nema34 12Nm Closed Loop Stepper Servo Motor 2 Phase Hybrid Driver CNC Kit vevor.com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] vismach example movies
Gentlemen, The wikiQuick links to vismach movies links do not work. Is there another place to look? thanks Stuart -- Addressee is the intended audience. If you are not the addressee then my consent is not given for you to read this email furthermore it is my wish you would close this without saving or reading, and cease and desist from saving or opening my private correspondence. Thank you for honoring my wish. ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] GladeVCP Question?
Yes. Just tried it and the lines below in the .init file do it provided you
have the files "ethercat_1joint.glade" and
"1joint_side_panel.glade" in same directory as .ini file:
# Add GladeVCP panel as a tab next to Preview/DRO:
EMBED_TAB_NAME=gladevcp2 demo
EMBED_TAB_COMMAND=halcmd loadusr -Wn gladevcp gladevcp -c gladevcp2 -x {XID}
ethercat_1joint.glade
# Add GladeVCP panel as side panel
GLADEVCP=1joint_side_panel.glade
If I remember correct there might be a problem if both panels have the same
name. On the line with EMBED_TAB_COMMAND I
can't remember exactly what all parameters do but hopefully the manual will
tell you·
Nicklas Karlsson
ons 2024-05-22 klockan 14:26 + skrev Todd Zuercher via Emc-users:
> Isit possible with Axis to have a GladeVDP side panel, and have a
> different GladeVCP embedded in a tab at the same
> time? How about multiple embedded tabs?
>
> I've not seen examples how to do this.
>
> Todd Zuercher
> P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php>
> 630 Henry Street
> Dalton, Ohio 44618
> Phone: (330)828-2105ext. 2031
>
>
> ___________
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] GladeVCP Question?
So this begs the question, how is it done? Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Chris Morley Sent: Wednesday, May 22, 2024 11:58 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] GladeVCP Question? [You don't often get email from chrisinnana...@hotmail.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] [EXTERNAL EMAIL] Be sure links are safe. Yes Sent from my Galaxy Original message From: Todd Zuercher via Emc-users Date: 2024-05-22 7:47 a.m. (GMT-08:00) To: "Enhanced Machine Controller (EMC)" Cc: Todd Zuercher Subject: [Emc-users] GladeVCP Question? Is it possible with Axis to have a GladeVDP side panel, and have a different GladeVCP embedded in a tab at the same time? How about multiple embedded tabs? I've not seen examples how to do this. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] GladeVCP Question?
Yes Sent from my Galaxy Original message From: Todd Zuercher via Emc-users Date: 2024-05-22 7:47 a.m. (GMT-08:00) To: "Enhanced Machine Controller (EMC)" Cc: Todd Zuercher Subject: [Emc-users] GladeVCP Question? Is it possible with Axis to have a GladeVDP side panel, and have a different GladeVCP embedded in a tab at the same time? How about multiple embedded tabs? I've not seen examples how to do this. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] GladeVCP Question?
Is it possible with Axis to have a GladeVDP side panel, and have a different GladeVCP embedded in a tab at the same time? How about multiple embedded tabs? I've not seen examples how to do this. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool length probe
Viesturs we use something similar from AliExpress They work perfectly On Tue, 21 May 2024, 23:08 Viesturs Lācis, wrote: > Hello! > > I need to add tool length sensor to a Biesse retrofit. So I wanted to > ask the audience to share their experience of where to get one. > I found this: > https://www.aliexpress.com/item/1005002538659888.html > > Any thoughts on how good/bad it is? > > Viesturs > > > _______________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool length probe
I have been thinking about using an old touch probe as a tool setter to measure both z and diameter offset. Anyone had any luck with that so far? I think it would be fancy if I could measure the diameter at the same time as the z offset. My cheap sk40 tool holders have some run out, and using tool compensation to get better tolerances would be fun. /Peter Den tis 21 maj 2024 kl 16:59 skrev andy pugh : > On Tue, 21 May 2024 at 15:25, Todd Zuercher wrote: > > > While your design is very simple and robust, it’s lack of adjustability > > seems like it would be a bit of a problem. > > > > I have added adjustability for use as an in-spindle probe to the one I > use. Just a flange with an M2 thread and adjusting screws. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is designed > for the especial use of mechanical geniuses, daredevils and lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > _______ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool length probe
On Tue, 21 May 2024 at 15:25, Todd Zuercher wrote: > While your design is very simple and robust, it’s lack of adjustability > seems like it would be a bit of a problem. > I have added adjustability for use as an in-spindle probe to the one I use. Just a flange with an M2 thread and adjusting screws. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool length probe
While your design is very simple and robust, it's lack of adjustability seems like it would be a bit of a problem. This design by using button head screw heads for the contacts allows for very simple adjustability for leveling or concentricity. I merely have the screws threaded into holes printed and taped into the plastic. And the plastic holds the screws tight enough to not require any nuts. I also didn't even bother with soldering anything, simply stuck the fine stranded wire into the screw holes before running in the screws. I can adjust the level/concentrisity by changing the height of the screws. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 From: andy pugh Sent: Tuesday, May 21, 2024 9:11 AM To: Enhanced Machine Controller (EMC) Cc: Todd Zuercher Subject: Re: [Emc-users] Tool length probe [EXTERNAL EMAIL] Be sure links are safe. On Tue, 21 May 2024 at 13:37, Todd Zuercher via Emc-users mailto:emc-users@lists.sourceforge.net>> wrote: Don't know about that one. But I did 3d print one that seems like it will work pretty well. My design has been successfully 3D printed too: https://youtu.be/2ia1_NKQJKs -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." - George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool length probe
On Tue, 21 May 2024 at 13:37, Todd Zuercher via Emc-users < emc-users@lists.sourceforge.net> wrote: > Don't know about that one. But I did 3d print one that seems like it will > work pretty well. My design has been successfully 3D printed too: https://youtu.be/2ia1_NKQJKs -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool length probe
On 5/21/24 08:35, Todd Zuercher via Emc-users wrote: Don't know about that one. But I did 3d print one that seems like it will work pretty well. I haven't really used it much other than a few tests. (I’m still working on The machine it is intended for.) The design is based on this touch probe on thingiverse. https://www.thingiverse.com/thing:721620 I made a flat base to replace the original top. Attached is a Freecad file of the base I made. Then for a touch surface I turned a steel piece 1.25" diameter with a 1/4-20 threaded stud on the bottom, and honed the top surface smooth and flat. https://photos.app.goo.gl/yiyW5EA5syhmPgWw7 And that, Andy, looks like it would work better than some I've paid $75 for. Neat idea. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Viesturs Lācis Sent: Tuesday, May 21, 2024 7:03 AM To: Enhanced Machine Controller (EMC) Subject: [Emc-users] Tool length probe [You don't often get email from viesturs.la...@gmail.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] [EXTERNAL EMAIL] Be sure links are safe. Hello! I need to add tool length sensor to a Biesse retrofit. So I wanted to ask the audience to share their experience of where to get one. I found this: https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.aliexpress.com%2Fitem%2F1005002538659888.html=05%7C02%7Ctoddz%40pgrahamdunn.com%7C73e7648ad8104b191c4408dc7985d28c%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638518862901084174%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C=1ymY80qoOnunMvr9dKZui4WWZd%2F4dvQkqhOZTHXP2wg%3D=0 Any thoughts on how good/bad it is? Viesturs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C02%7Ctoddz%40pgrahamdunn.com%7C73e7648ad8104b191c4408dc7985d28c%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638518862901092336%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C=cnzhdfAd5sIc%2FQplomZxEbrtqs%2FKqC9hACBEnBqBb0c%3D=0 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool length probe
Don't know about that one. But I did 3d print one that seems like it will work pretty well. I haven't really used it much other than a few tests. (I’m still working on The machine it is intended for.) The design is based on this touch probe on thingiverse. https://www.thingiverse.com/thing:721620 I made a flat base to replace the original top. Attached is a Freecad file of the base I made. Then for a touch surface I turned a steel piece 1.25" diameter with a 1/4-20 threaded stud on the bottom, and honed the top surface smooth and flat. https://photos.app.goo.gl/yiyW5EA5syhmPgWw7 Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Viesturs Lācis Sent: Tuesday, May 21, 2024 7:03 AM To: Enhanced Machine Controller (EMC) Subject: [Emc-users] Tool length probe [You don't often get email from viesturs.la...@gmail.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] [EXTERNAL EMAIL] Be sure links are safe. Hello! I need to add tool length sensor to a Biesse retrofit. So I wanted to ask the audience to share their experience of where to get one. I found this: https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.aliexpress.com%2Fitem%2F1005002538659888.html=05%7C02%7Ctoddz%40pgrahamdunn.com%7C73e7648ad8104b191c4408dc7985d28c%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638518862901084174%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C=1ymY80qoOnunMvr9dKZui4WWZd%2F4dvQkqhOZTHXP2wg%3D=0 Any thoughts on how good/bad it is? Viesturs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C02%7Ctoddz%40pgrahamdunn.com%7C73e7648ad8104b191c4408dc7985d28c%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638518862901092336%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C=cnzhdfAd5sIc%2FQplomZxEbrtqs%2FKqC9hACBEnBqBb0c%3D=0 Tool Touch Base.FCStd Description: Tool Touch Base.FCStd _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool length probe
On Tue, 21 May 2024 at 13:07, gene heskett wrote: > > Probably as good as any. But its overkill, designed to impress the > visiting frogs. At $30 it's not very overkill, and foes provide provision for an air plast to clean the tool of chips prior to measurement which is probably handy as part of an automated tool length/breakage check process. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool length probe
On 5/21/24 07:05, Viesturs Lācis wrote: Hello! I need to add tool length sensor to a Biesse retrofit. So I wanted to ask the audience to share their experience of where to get one. I found this: https://www.aliexpress.com/item/1005002538659888.html Any thoughts on how good/bad it is? Viesturs Probably as good as any. But its overkill, designed to impress the visiting frogs. When I need something like that, i usually saw off a small pad of double sided copper pcb, solder a wire to the top side and glue the bottom down someplace readily findable with the tool in the spindle. I usually clip a ground onto the tool since some spindle bearings are ceramic & not very good grounds. A G38-2 is used to find when the tool contacts the pcb. Sometimes I run the tool backwards so it doesn't cut the copper. If not spinning or is spinning backwards, leaves no mark of the pcb, repeatable to a tenth or better. The major diff is the hardened contact face, and the added error caused by the switch in these gismo's. The repeat accuracy of the cobbled up pcb is probably better than this device if not abused. They'll all need calibrated, but that is a given. I'd opt to save that $35 + ship. A small sheet of pcb, doesn't need to be double sided, can be a lifetime supply of TLO setters. Accuracy is improved if an air blast cleans the tool first. Old swarf stuck to the tool can give a premature reading a thou or so early. Stiction in how he machine moves is a bigger problem. But that is a machine with poor lube that will affect all such devices. I'd save the $45 & use the pcb... If you wreck it with a spinning tool its pennys to make a new one. The bigger problem is remembering which pin on the breakout board is the probe connection. Find it once and bring it out to a banana socket with a dymo or p-touch label. Problem solved. Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Tool length probe
Hello! I need to add tool length sensor to a Biesse retrofit. So I wanted to ask the audience to share their experience of where to get one. I found this: https://www.aliexpress.com/item/1005002538659888.html Any thoughts on how good/bad it is? Viesturs ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
> On May 20, 2024, at 6:26 AM, Todd Zuercher via Emc-users > wrote: > > I did to exactly that. With the dial indicator on the ends vs the center, it > moved 10 times more in the center of the gantry than it did on the ends. I > will be the 1st to agree that the servo tuning could probably be better. But > this thing really is(was) a wet noodle. At 12ft long, with the ends > disconnected from the ball screws, +/-1 inch differences between the ends of > the gantry wasn't difficult to achieve. The two servos driving them really > interact very little and behave independently of each other with one not > really affecting the tune of the other. More than likely this has been the > true root cause of the majority of my servo tuning/carving issues with this > machine since day 1. (We bought it about 15yrs ago.) Originally the > machine's two ends were driven by rack and pinions with a 12ft long torque > tube connected between the pinion gears. I had been blaming most of the > wobble problems on torsional twisting of tube, belt squirm on the 7":1/2" > sprockets on the belt reduction pullies for the servo, and a huge inertia > imbalance for the servo, being used with a gear ratio more appropriate for a > stepper motor. > > While I kind of liked the idea of using cable trussing, my colleges did not. > So we decided to go ahead with the steel tubing we had on hand. Good. The cable idea would not have worked. You would have done better with a steel rod the same diameter as the proposed cable. The rod is stiffer than the cable. But either way, the cross sectional area of the cable or rod is tiny compared to the beam. It would have a small effect because of the small amount of steel added. What you did with that steel tube is you made the beam much wider. Stiffness goes up with the cube of the width. If the beam is now twice as wide, it is 8 times more stiff. > > That said, I a cut a piece of the 2x4x1/8" wall steel tubing, drilled holes > in it spaced 1ft apart and mounted it on edge on the back of the beam. It > has made a huge difference, and now the gantry no longer wobbles when homing > and hitting the center behaves approximately the same as hitting it on the > ends. ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
I did to exactly that. With the dial indicator on the ends vs the center, it moved 10 times more in the center of the gantry than it did on the ends. I will be the 1st to agree that the servo tuning could probably be better. But this thing really is(was) a wet noodle. At 12ft long, with the ends disconnected from the ball screws, +/-1 inch differences between the ends of the gantry wasn't difficult to achieve. The two servos driving them really interact very little and behave independently of each other with one not really affecting the tune of the other. More than likely this has been the true root cause of the majority of my servo tuning/carving issues with this machine since day 1. (We bought it about 15yrs ago.) Originally the machine's two ends were driven by rack and pinions with a 12ft long torque tube connected between the pinion gears. I had been blaming most of the wobble problems on torsional twisting of tube, belt squirm on the 7":1/2" sprockets on the belt reduction pullies for the servo, and a huge inertia imbalance for the servo, being used with a gear ratio more appropriate for a stepper motor. While I kind of liked the idea of using cable trussing, my colleges did not. So we decided to go ahead with the steel tubing we had on hand. That said, I a cut a piece of the 2x4x1/8" wall steel tubing, drilled holes in it spaced 1ft apart and mounted it on edge on the back of the beam. It has made a huge difference, and now the gantry no longer wobbles when homing and hitting the center behaves approximately the same as hitting it on the ends. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Chris Albertson Sent: Tuesday, May 14, 2024 9:26 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Beam Stiffening? [EXTERNAL EMAIL] Be sure links are safe. I think I fell for the “beam is bending” idea too. It might be. The way to find out is to measure the beam center with the dial indicator and then measure the ends of the beam. It might be that the entire beam is moving Is the gantry belt driven? Long belts can act like springs. The solution is wider belts. It is easy to see that a belt that is twice as wide is twice as stiff. I’d measure movement at the ends before any more thinking about the beam. As for modifying the beam, you have to model it. Guessing and “eyeball engineering” generally does not work well. Any fix is going to be very expensive. It is best to know it will work. Everything that you add to that beam also adds mass. Mass is what you want to get rid of. > On May 14, 2024, at 1:56 PM, gene heskett wrote: > > On 5/14/24 14:34, Eric Keller wrote: >> Do something cheap because I'm not convinced it's the beam. I've >> done troubleshooting on things like this, and sometimes it's >> stiffness and sometimes it's not stiffness. But it really doesn't >> make sense that it would sit there and ring after a move, so you also >> may have some tuning to do. Possibly a notch filter? >> Eric Keller >> Boalsburg, Pennsylvania >> On Mon, May 13, 2024 at 4:50 PM Todd Zuercher via Emc-users >> wrote: >>> >>> Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam >>> on a gantry router without adding too much mass? What is there now is a 4" >>> x 8" rectangular 3/8" walled extrusion that is 145" long. >>> >>> Under normal jogging commands the two servos control the ends of this >>> gantry reasonably well, but while the axis is homing the thing shakes and >>> wobbles terribly bad. > > This, on 3rd or 4th read, sounds as if the two servo's are not in tune with > each other. Tuning servo's is not my strong suit, (and the only servo I had > was destroyed by the new autotune pid in linuxcnc, it found settings that mde > it ocillate and fried a $125 motor in around a minute. But this would be a > lot easier to synchronize if stepper/servo's were used. Rigged with a home > switch, maybe a prox switch since its non contact, with logic rigged so they > can back away from home and move in sync the rest of the day, getting sync is > running toward home until the switch trips on that end of the beam, run > toward home until both ends have tripped, call that home. From then until > powerdown, both motors getting the same step/dir signals will be in sync till > the powerdown. No fighting because the two servo's are not in an identical > state of tune. Hanpose has nema 34 and 42 motors of 12 NM, probably with more > torque and speeds than your servo's. The best description is that they just > work. And they use much less power than regular steppers to get the job done. > A diff you can see i
Re: [Emc-users] HAL_TYPE_UNINITIALIZED
for sure I upgrade to 2.9.1 . problem disappear ... sorry for late reply . I do a tons of things not only scripting. Now start to work over 6.6 kernel and 2.9.2 and 2.10.0 Lcnc some trouble with ethercat but nothing of important for now. I try to renew joint/axis for insert all necessary change directly on gcode you know lego midstrom right? I suse similar code for cobot china made. The c++ API connect to user object block is quite good done in linux c++ ros2. Changing from joint to axis need to write everytime on dialog box of object block the right velocity and acceleration, plus radius needed for complete the action (similar to G64 Pxx macro) now on Lcnc gcode need to have cutom M code to switch to joint to axis and vice-versa. All data is write on custom M code acc and max vel is write on INI file. I use switch kins on my custom scara from 2 year without stop motion during ja operations think all was ready to convert custom M code to custom gcode, where axis limit was read from INI file, so nothing need to write on it, exept new vel and new acc. In these way Lcnc become completely robotics CNC usable. For sure need some adjust on s curve and low vibration on mechanical kinematics limit but foward/reverse command add by dgarret show the way to do these adding a zone where vel decrease automatically until 0 when robot reach kinematics insane limit. For sure need to revrite all kins module for these pourpuse. thanks a lot for your work on Lcnc. Il giorno lun 8 gen 2024 alle ore 00:35 andy pugh ha scritto: > > On Thu, 2 Nov 2023 at 11:14, theman whosoldtheworld > wrote: > > > and every reading become HAL_TYPE_UNINITIALIZED . pieces of code > > that I use for reading is these: > > > > Sorry, I have been intending to look at this for months, but haven't. > Did you get anywhere yourself? > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Acceleration Settings?
Maybe I spoke too soon. I did a little more searching and found that there is an issue with MDI commands that they are executed with half of the acceleration of the settings. Is this intentional for some reason, or is it a bug? I confirmed with this machine that yes, regular G-code programs and jogging moves use the correct acceleration limits, but MDI commands only use half. Why is that? 2.7 didn't have this behavior. It kind of makes testing machine settings a pain in the... Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Jon Elson Sent: Wednesday, May 15, 2024 7:20 PM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Acceleration Settings? [EXTERNAL EMAIL] Be sure links are safe. On 5/15/24 12:23, Todd Zuercher via Emc-users wrote: > I'm trying to figure out something goofy that seems to be going on with my > acceleration settings. > I'm running Linuxcnc 2.9.0 and Axis ui. > I have all of the max_acceleration settings set for 20.0 (and > stepgen_maxaccel = 25), and for some reason everything only moves with an > acceleration of 10 ipsps for G0 and G1 moves (confirmed with Halscope), but > jogging does go at 20. Is there normal behavior or am I missing some setting > somewhere that is limiting the acceleration? > In the latest LinuxCNC there are TWO places that have accel and max velocity settings. Jogging is in the JOINT_x part, and CNC moves are in the AXIS_x section. In general, you want the same settings in both JOINT and AXIS sections. Jon ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] A great example of CNC work and motion control.
On 5/16/24 03:55, Chris Albertson wrote: Just by chance is anyone here interested in advanced machine control and CNC’d metal parts? Here is a real product you can buy today for $16K that defines the above. It is just like our 3-axis milling machines but 43-axis. It just went on sale. API is on GitHub. See video —> https://www.unitree.com/images/Unitree%20G1%20EN%201080p%20%281%29.mp4 Now that, for $16k, is very impressive. I could buy one, but how long would it take me to program it to hold my beer and watch this? Writing gcode for LCNC is more my speed. No connections to LCNC except to show what a few guys in China are making with their CNC mills. Already on another list, people are organizing some sort of group to buy one for shared access. This is not at all like the Boston Dynamics “Atlas” which cost millions of dollars and was never intended to be sold. This machine is currently being mass produced and is for sale today. For the technically minded. The robot has up to 43 motors, half of which are in the hands. Each motor accepts commands for position, velocity, and torque and has two rotary encoders, one on the motor and one on the joint after the geared reduction drive. There is a network protocol to send the motor commands. They need to go over WiFi unless you pay extra for a second computer that fits inside and then commands can go over Ethernet. The other control mode works in cartesian coordinates and you can give high-level commands like “stand and balance” or “walk” or “move hand to X,Y,Z”. The internal battery claims a 2-hour run time based on some average motion. Mechanically, it is just some BLDC motors and sun-planet gear reductions of maybe about 6:1 or 9:1, lower than some might expect. All of the rotation shafts are hollow to allow cables to be routed through the moving joints. What is impressive is the machine work. As seen in the video, It is light enough to be lifted by one of the engineers at Unitree. No more science fiction or “some day you will be able to buy a robot…”. If you've got $16K it ships directly from China. The company has a decent reputation for building good quality hardware. ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] A great example of CNC work and motion control.
Boston Dynamics has retired their Atlas robots. Their new model is all electric. As a farewell they posted this video showing a lot of Atlas' failures, including many hydraulics blowouts from when it landed too hard and popped a hose or seal. https://www.youtube.com/watch?v=-9EM5_VFlt8 On Thursday, May 16, 2024 at 01:58:44 AM MDT, Chris Albertson wrote: Just by chance is anyone here interested in advanced machine control and CNC’d metal parts? Here is a real product you can buy today for $16K that defines the above. It is just like our 3-axis milling machines but 43-axis. It just went on sale. API is on GitHub. See video —> https://www.unitree.com/images/Unitree%20G1%20EN%201080p%20%281%29.mp4 No connections to LCNC except to show what a few guys in China are making with their CNC mills. Already on another list, people are organizing some sort of group to buy one for shared access. This is not at all like the Boston Dynamics “Atlas” which cost millions of dollars and was never intended to be sold. This machine is currently being mass produced and is for sale today. For the technically minded. The robot has up to 43 motors, half of which are in the hands. Each motor accepts commands for position, velocity, and torque and has two rotary encoders, one on the motor and one on the joint after the geared reduction drive. There is a network protocol to send the motor commands. They need to go over WiFi unless you pay extra for a second computer that fits inside and then commands can go over Ethernet. The other control mode works in cartesian coordinates and you can give high-level commands like “stand and balance” or “walk” or “move hand to X,Y,Z”. The internal battery claims a 2-hour run time based on some average motion. Mechanically, it is just some BLDC motors and sun-planet gear reductions of maybe about 6:1 or 9:1, lower than some might expect. All of the rotation shafts are hollow to allow cables to be routed through the moving joints. What is impressive is the machine work. As seen in the video, It is light enough to be lifted by one of the engineers at Unitree. No more science fiction or “some day you will be able to buy a robot…”. If you've got $16K it ships directly from China. The company has a decent reputation for building good quality hardware. ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] A great example of CNC work and motion control.
Just by chance is anyone here interested in advanced machine control and CNC’d metal parts? Here is a real product you can buy today for $16K that defines the above. It is just like our 3-axis milling machines but 43-axis. It just went on sale. API is on GitHub. See video —> https://www.unitree.com/images/Unitree%20G1%20EN%201080p%20%281%29.mp4 No connections to LCNC except to show what a few guys in China are making with their CNC mills. Already on another list, people are organizing some sort of group to buy one for shared access. This is not at all like the Boston Dynamics “Atlas” which cost millions of dollars and was never intended to be sold. This machine is currently being mass produced and is for sale today. For the technically minded. The robot has up to 43 motors, half of which are in the hands. Each motor accepts commands for position, velocity, and torque and has two rotary encoders, one on the motor and one on the joint after the geared reduction drive. There is a network protocol to send the motor commands. They need to go over WiFi unless you pay extra for a second computer that fits inside and then commands can go over Ethernet. The other control mode works in cartesian coordinates and you can give high-level commands like “stand and balance” or “walk” or “move hand to X,Y,Z”. The internal battery claims a 2-hour run time based on some average motion. Mechanically, it is just some BLDC motors and sun-planet gear reductions of maybe about 6:1 or 9:1, lower than some might expect. All of the rotation shafts are hollow to allow cables to be routed through the moving joints. What is impressive is the machine work. As seen in the video, It is light enough to be lifted by one of the engineers at Unitree. No more science fiction or “some day you will be able to buy a robot…”. If you've got $16K it ships directly from China. The company has a decent reputation for building good quality hardware. ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Acceleration Settings?
On 5/15/24 19:21, Jon Elson wrote: On 5/15/24 12:23, Todd Zuercher via Emc-users wrote: I'm trying to figure out something goofy that seems to be going on with my acceleration settings. I'm running Linuxcnc 2.9.0 and Axis ui. I have all of the max_acceleration settings set for 20.0 (and stepgen_maxaccel = 25), and for some reason everything only moves with an acceleration of 10 ipsps for G0 and G1 moves (confirmed with Halscope), but jogging does go at 20. Is there normal behavior or am I missing some setting somewhere that is limiting the acceleration? In the latest LinuxCNC there are TWO places that have accel and max velocity settings. Jogging is in the JOINT_x part, and CNC moves are in the AXIS_x section. In general, you want the same settings in both JOINT and AXIS sections. Jon I didn't know you could set them differently Jon. Any time I fiddle with those, if they don't match, hal yell's at me and exits. ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Acceleration Settings?
On Wed, 15 May 2024, John Dammeyer wrote: Date: Wed, 15 May 2024 16:57:44 -0700 From: John Dammeyer Reply-To: "Enhanced Machine Controller (EMC)" To: "'Enhanced Machine Controller (EMC)'" Subject: Re: [Emc-users] Acceleration Settings? -Original Message- From: Jon Elson [mailto:el...@pico-systems.com] Sent: May 15, 2024 4:20 PM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Acceleration Settings? On 5/15/24 12:23, Todd Zuercher via Emc-users wrote: > I'm trying to figure out something goofy that seems to be going on with my acceleration settings. > I'm running Linuxcnc 2.9.0 and Axis ui. > I have all of the max_acceleration settings set for 20.0 (and stepgen_maxaccel = 25), and for some reason everything only moves with an acceleration of 10 ipsps for G0 and G1 moves (confirmed with Halscope), but jogging does go at 20. Is there normal behavior or am I missing some setting somewhere that is limiting the acceleration? > In the latest LinuxCNC there are TWO places that have accel and max velocity settings.?? Jogging is in the JOINT_x part, and CNC moves are in the AXIS_x section.?? In general, you want the same settings in both JOINT and AXIS sections. Jon That's interesting. What is then the major difference between Joint and Axis? Just jogging parameters? John LinuxCNC versions 2.8 and > separate joints (think of these as actuators or motors) and Axis. Axis are normally cartesian or rotary axis. This makes sense for machines where joint and axis do not map exactly, such as gantry devices that may have duplicated X,Y,Z joints (so up to 6) but only 3 axis or say a CoreXY laser cutter where the joints and cartesian axis are related by a kinematics equation. Peter Wallace Mesa Electronics_______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Acceleration Settings?
> -Original Message- > From: Jon Elson [mailto:el...@pico-systems.com] > Sent: May 15, 2024 4:20 PM > To: emc-users@lists.sourceforge.net > Subject: Re: [Emc-users] Acceleration Settings? > > On 5/15/24 12:23, Todd Zuercher via Emc-users wrote: > > I'm trying to figure out something goofy that seems to be going on with my > acceleration settings. > > I'm running Linuxcnc 2.9.0 and Axis ui. > > I have all of the max_acceleration settings set for 20.0 (and > stepgen_maxaccel = 25), and for some reason everything only moves with > an acceleration of 10 ipsps for G0 and G1 moves (confirmed with Halscope), > but jogging does go at 20. Is there normal behavior or am I missing some > setting somewhere that is limiting the acceleration? > > > In the latest LinuxCNC there are TWO places that have accel > and max velocity settings.� Jogging is in the JOINT_x part, > and CNC moves are in the AXIS_x section.� In general, you > want the same settings in both JOINT and AXIS sections. > > Jon > That's interesting. What is then the major difference between Joint and Axis? Just jogging parameters? John > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Acceleration Settings?
On 5/15/24 12:23, Todd Zuercher via Emc-users wrote: I'm trying to figure out something goofy that seems to be going on with my acceleration settings. I'm running Linuxcnc 2.9.0 and Axis ui. I have all of the max_acceleration settings set for 20.0 (and stepgen_maxaccel = 25), and for some reason everything only moves with an acceleration of 10 ipsps for G0 and G1 moves (confirmed with Halscope), but jogging does go at 20. Is there normal behavior or am I missing some setting somewhere that is limiting the acceleration? In the latest LinuxCNC there are TWO places that have accel and max velocity settings. Jogging is in the JOINT_x part, and CNC moves are in the AXIS_x section. In general, you want the same settings in both JOINT and AXIS sections. Jon ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Acceleration Settings?
I'm trying to figure out something goofy that seems to be going on with my acceleration settings. I'm running Linuxcnc 2.9.0 and Axis ui. I have all of the max_acceleration settings set for 20.0 (and stepgen_maxaccel = 25), and for some reason everything only moves with an acceleration of 10 ipsps for G0 and G1 moves (confirmed with Halscope), but jogging does go at 20. Is there normal behavior or am I missing some setting somewhere that is limiting the acceleration? Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
I think I fell for the “beam is bending” idea too. It might be. The way to find out is to measure the beam center with the dial indicator and then measure the ends of the beam. It might be that the entire beam is moving Is the gantry belt driven? Long belts can act like springs. The solution is wider belts. It is easy to see that a belt that is twice as wide is twice as stiff. I’d measure movement at the ends before any more thinking about the beam. As for modifying the beam, you have to model it. Guessing and “eyeball engineering” generally does not work well. Any fix is going to be very expensive. It is best to know it will work. Everything that you add to that beam also adds mass. Mass is what you want to get rid of. > On May 14, 2024, at 1:56 PM, gene heskett wrote: > > On 5/14/24 14:34, Eric Keller wrote: >> Do something cheap because I'm not convinced it's the beam. I've done >> troubleshooting on things like this, and sometimes it's stiffness and >> sometimes it's not stiffness. But it really doesn't make sense that it >> would sit there and ring after a move, so you also may have some >> tuning to do. Possibly a notch filter? >> Eric Keller >> Boalsburg, Pennsylvania >> On Mon, May 13, 2024 at 4:50 PM Todd Zuercher via Emc-users >> wrote: >>> >>> Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam >>> on a gantry router without adding too much mass? What is there now is a 4" >>> x 8" rectangular 3/8" walled extrusion that is 145" long. >>> >>> Under normal jogging commands the two servos control the ends of this >>> gantry reasonably well, but while the axis is homing the thing shakes and >>> wobbles terribly bad. > > This, on 3rd or 4th read, sounds as if the two servo's are not in tune with > each other. Tuning servo's is not my strong suit, (and the only servo I had > was destroyed by the new autotune pid in linuxcnc, it found settings that mde > it ocillate and fried a $125 motor in around a minute. But this would be a > lot easier to synchronize if stepper/servo's were used. Rigged with a home > switch, maybe a prox switch since its non contact, with logic rigged so they > can back away from home and move in sync the rest of the day, getting sync is > running toward home until the switch trips on that end of the beam, run > toward home until both ends have tripped, call that home. From then until > powerdown, both motors getting the same step/dir signals will be in sync till > the powerdown. No fighting because the two servo's are not in an identical > state of tune. Hanpose has nema 34 and 42 motors of 12 NM, probably with more > torque and speeds than your servo's. The best description is that they just > work. And they use much less power than regular steppers to get the job done. > A diff you can see in the power bill if replacing burn your hand regular > steppers. > > How fast and how strong are the servo's you are using now? Gear ratio's too. > > Also If I put a dial indicator in the center of the bridge and hit the > bridge forward or backward it will flex and wobble enough to displace the > dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it. But > on the ends the servo's only have a few thousandths of give. >>> >>> I'm less concerned about the actual stiffness and more worried about >>> dampening the wobble. >>> >>> Todd Zuercher >>> P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> >>> 630 Henry Street >>> Dalton, Ohio 44618 >>> Phone: (330)828-2105ext. 2031 >>> >>> >>> ___ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >> ___ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > > Cheers, Gene Heskett, CET. > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net <mailto:Emc-users@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
On 5/14/24 14:34, Eric Keller wrote: Do something cheap because I'm not convinced it's the beam. I've done troubleshooting on things like this, and sometimes it's stiffness and sometimes it's not stiffness. But it really doesn't make sense that it would sit there and ring after a move, so you also may have some tuning to do. Possibly a notch filter? Eric Keller Boalsburg, Pennsylvania On Mon, May 13, 2024 at 4:50 PM Todd Zuercher via Emc-users wrote: Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam on a gantry router without adding too much mass? What is there now is a 4" x 8" rectangular 3/8" walled extrusion that is 145" long. Under normal jogging commands the two servos control the ends of this gantry reasonably well, but while the axis is homing the thing shakes and wobbles terribly bad. This, on 3rd or 4th read, sounds as if the two servo's are not in tune with each other. Tuning servo's is not my strong suit, (and the only servo I had was destroyed by the new autotune pid in linuxcnc, it found settings that mde it ocillate and fried a $125 motor in around a minute. But this would be a lot easier to synchronize if stepper/servo's were used. Rigged with a home switch, maybe a prox switch since its non contact, with logic rigged so they can back away from home and move in sync the rest of the day, getting sync is running toward home until the switch trips on that end of the beam, run toward home until both ends have tripped, call that home. From then until powerdown, both motors getting the same step/dir signals will be in sync till the powerdown. No fighting because the two servo's are not in an identical state of tune. Hanpose has nema 34 and 42 motors of 12 NM, probably with more torque and speeds than your servo's. The best description is that they just work. And they use much less power than regular steppers to get the job done. A diff you can see in the power bill if replacing burn your hand regular steppers. How fast and how strong are the servo's you are using now? Gear ratio's too. Also If I put a dial indicator in the center of the bridge and hit the bridge forward or backward it will flex and wobble enough to displace the dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it. But on the ends the servo's only have a few thousandths of give. I'm less concerned about the actual stiffness and more worried about dampening the wobble. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
This is why I’m a chemist not an engineer. So how does it break out cost vs results, not exactly the same as weight. Even tho it is not an aircraft app working towards lightness may make sense. Thanks for the elucidation. Really happy it is not my problem. ;-) A Boeing engineer once commented that non-aeronautical applications were SO easy to make strong/stiff! > On May 13, 2024, at 4:02 PM, andy pugh wrote: > > On Mon, 13 May 2024 at 22:50, Chris Albertson > wrote: > >> Adding anything inside is the worst place to add material. > > > Yes, without a doubt, but it seems fair to assume that the ganry has slides > and other components on the outside, but not on the inside. > > The base beam has an Iyy (bending in the plane of the smaller dimension ) > of 22in^4 > Doubling it internally gives: 34.2in^4, so about 50% stiffer > Doubling externally gives: 57in^4 so getting on for 3x as stiff. > > I admit I was imagining a thinner wall thickness relative to the overall > dimensions, where the difference would be smaller. > > There is less to be gained than you might think from making the section > solid. You can do the experiments here: > https://amesweb.info/section/second-moment-of-area-calculator.aspx > > If stiffness is the key, then add a stiff material. > Aluminium is 68GPa (moving away from measuring in bananas) > Steel is 200GPa (this is the same for all iron alloys, hardened or > unhardened, including cast iron) > Titanium is 114GPa, so good for light, not for stiff. > Carbon fibre is 181Gpa for uindirectional fibres, but more typically around > 50GPa. > Tungsten carbide is 600GPa (which is why solid carbide boring bars exist) > Beryllium is 287 but probably out of both budget and COSHH limits. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is designed > for the especial use of mechanical geniuses, daredevils and lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > _______ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
Do something cheap because I'm not convinced it's the beam. I've done troubleshooting on things like this, and sometimes it's stiffness and sometimes it's not stiffness. But it really doesn't make sense that it would sit there and ring after a move, so you also may have some tuning to do. Possibly a notch filter? Eric Keller Boalsburg, Pennsylvania On Mon, May 13, 2024 at 4:50 PM Todd Zuercher via Emc-users wrote: > > Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam > on a gantry router without adding too much mass? What is there now is a 4" x > 8" rectangular 3/8" walled extrusion that is 145" long. > > Under normal jogging commands the two servos control the ends of this gantry > reasonably well, but while the axis is homing the thing shakes and wobbles > terribly bad. Also If I put a dial indicator in the center of the bridge and > hit the bridge forward or backward it will flex and wobble enough to displace > the dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it. > But on the ends the servo's only have a few thousandths of give. > > I'm less concerned about the actual stiffness and more worried about > dampening the wobble. > > Todd Zuercher > P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
Hi all, Since I’m cheap I’d prototype with a fiberglass tube and fill with urethane foam. How much does the modulus change between a rectangular tube and elliptical geometry? Box with corner braces that are viscous damped. It all comes down to load and frequencies. I’m just the aging dummy in the corner. ;-) > On May 13, 2024, at 2:36 PM, Chris Albertson > wrote: > > > >> On May 13, 2024, at 1:45 PM, Todd Zuercher via Emc-users >> mailto:emc-users@lists.sourceforge.net>> >> wrote: >> >> Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam >> on a gantry router without adding too much mass? What is there now is a 4" >> x 8" rectangular 3/8" walled extrusion that is 145" long. >> >> Under normal jogging commands the two servos control the ends of this gantry >> reasonably well, but while the axis is homing the thing shakes and wobbles >> terribly bad. Also If I put a dial indicator in the center of the bridge >> and hit the bridge forward or backward it will flex and wobble enough to >> displace the dial indicator +/-0.03 and it takes nearly a dozen wobbles to >> dampen it. But on the ends the servo's only have a few thousandths of give. >> >> I'm less concerned about the actual stiffness and more worried about >> dampening the wobble. > > > What is the extrusion made of, I assume it is some kind of aluminum alloy. > The simplest but expensive option is to replace it with a stronger/stiffer > material with the same dimensions. Of course Titanium comes to mind but > that is maybe not in the budget.Carbon fiber could work and it is > possible to DIY carbon fiber beams with just hand tools. I have made 4 > meter long racing kayaks with carbon, using just a paint brush and scissors > in one weekend. > > The first class way is to make a female mold and polish it well so the part > looks nice. The cheap way is to make one like they make surfboards. You > start with a foam block, shape it then wrap it in fiber and resin. > > The neat thing about carbon composite is that you are not limited to the > extrusion shape. I would make the entire beam a compound curve with no flat > or straight or cylindrical sections, Maybe like a very elongated American > football but with ovil cross section. > > I like to use the car hood story. A flat sheet of sheet steel is bendable by > hand. But after they stamp it into the shape of a car hood it becomes rigid. > So rather then a square tube, way not oval but with a larger diameter in > the center where all the bending force is? > > The way you make it is to first make a full-size model out of wood and bondo. > Do a test-fit and give it an automotice grade paint finsh and then paste wax. > Make a fiber glass mold, then from that your part. Yes that is a lot of > work. This is why you have an aluminum extrusion there now, because that was > easy and cheap. > > > > > > >> >> Todd Zuercher >> P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> >> 630 Henry Street >> Dalton, Ohio 44618 >> Phone: (330)828-2105ext. 2031 >> >> >> ___ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______ > Emc-users mailing list > Emc-users@lists.sourceforge.net <mailto:Emc-users@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
This kind of design “works” only if you make the overall dimension MUCH larger. It is an overall more efficient design but bmovimng material does not add streght of stiffness. You would need to do something like scale the beam up to maybe twice its size then cut away half the metal. The first step should be to look for a material with the best stiffness to weight ratio you can afford. Then if you change the shape, you woiuld have to go outside of the current 4x8 dimensions. “Strength” is not just the tensile strength of the material but, that tiimes the cross sectional area, and then you multiply by the distance from a kind of “center line”. The problem is cost. The machine has the aluminum extrusion likely because it was the loest cost reasonable solution. They could have used a high grade of tool steel machine into a truss frame but that might cost more than some cars. My suggestion of carbon fiber has because the materials are not super expensive but what you pay for is the huge amount of labor Whatever you do it will cost a bunch more then that extrusion. So be sure to have it modeled using finite element analysis. You hate to spend $10K or more only to find iot made thins worse. > On May 14, 2024, at 3:21 AM, Gregg Eshelman via Emc-users > wrote: > > A triangular tube with an isogrid pattern cut into it to reduce mass without > sacrificing stiffness. Could have it laser cut with slots on the fold lines > to make it easy for a sheet metal break to fold accurately. The design could > have tabs and slots to interlock on the joining edge. Then TIG weld along the > bend slots and joining edge. Weld it like they do top fuel dragster frames, a > little bit here, a little bit there - to eliminate warping. > > Or it could be possible to design three panels to bolt together and to the > gantry using tabs and Rivnuts. > > The round holes at the vertexes of the triangles wouldn't need to be cut, > except in places where you'd want Rivnuts to mount things. > > For isogrid design there's the 1973 book > https://femci.gsfc.nasa.gov/isogrid/index.html Page 42 of the PDF has the > dimensions for the panels used for walls and floors in Skylab. The photos in > it are mostly useless since the PDF was apparently produced from a microfiche > of a FAXed (or early non-greyscale photostat) copy of an original printed > copy of the book. > > In some dusty, forgotten file cabinet there must be an original printed copy > of > Isogrid Design Handbook - NASA CR-124075, Rev. A, Feb. 1973 > > A triangular tube is more twist and bend resistant than a square, > rectangular, or round tube, and it is lower mass than a square or rectangular > tube. Even less mass with all the bits removed to cut an isogrid. > > On Monday, May 13, 2024 at 02:49:51 PM MDT, Todd Zuercher via Emc-users > wrote: > > Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam > on a gantry router without adding too much mass? What is there now is a 4" x > 8" rectangular 3/8" walled extrusion that is 145" long. > > Under normal jogging commands the two servos control the ends of this gantry > reasonably well, but while the axis is homing the thing shakes and wobbles > terribly bad. Also If I put a dial indicator in the center of the bridge and > hit the bridge forward or backward it will flex and wobble enough to displace > the dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it. > But on the ends the servo's only have a few thousandths of give. > > I'm less concerned about the actual stiffness and more worried about > dampening the wobble. > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
A triangular tube with an isogrid pattern cut into it to reduce mass without sacrificing stiffness. Could have it laser cut with slots on the fold lines to make it easy for a sheet metal break to fold accurately. The design could have tabs and slots to interlock on the joining edge. Then TIG weld along the bend slots and joining edge. Weld it like they do top fuel dragster frames, a little bit here, a little bit there - to eliminate warping. Or it could be possible to design three panels to bolt together and to the gantry using tabs and Rivnuts. The round holes at the vertexes of the triangles wouldn't need to be cut, except in places where you'd want Rivnuts to mount things. For isogrid design there's the 1973 book https://femci.gsfc.nasa.gov/isogrid/index.html Page 42 of the PDF has the dimensions for the panels used for walls and floors in Skylab. The photos in it are mostly useless since the PDF was apparently produced from a microfiche of a FAXed (or early non-greyscale photostat) copy of an original printed copy of the book. In some dusty, forgotten file cabinet there must be an original printed copy of Isogrid Design Handbook - NASA CR-124075, Rev. A, Feb. 1973 A triangular tube is more twist and bend resistant than a square, rectangular, or round tube, and it is lower mass than a square or rectangular tube. Even less mass with all the bits removed to cut an isogrid. On Monday, May 13, 2024 at 02:49:51 PM MDT, Todd Zuercher via Emc-users wrote: Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam on a gantry router without adding too much mass? What is there now is a 4" x 8" rectangular 3/8" walled extrusion that is 145" long. Under normal jogging commands the two servos control the ends of this gantry reasonably well, but while the axis is homing the thing shakes and wobbles terribly bad. Also If I put a dial indicator in the center of the bridge and hit the bridge forward or backward it will flex and wobble enough to displace the dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it. But on the ends the servo's only have a few thousandths of give. I'm less concerned about the actual stiffness and more worried about dampening the wobble. _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
On 5/13/24 16:47, Todd Zuercher via Emc-users wrote: Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam on a gantry router without adding too much mass? What is there now is a 4" x 8" rectangular 3/8" walled extrusion that is 145" long. That has got to be north of 100 lbs of flying weight. Under normal jogging commands the two servos control the ends of this gantry reasonably well, but while the axis is homing the thing shakes and wobbles terribly bad. Also If I put a dial indicator in the center of the bridge and hit the bridge forward or backward it will flex and wobble enough to displace the dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it. But on the ends the servo's only have a few thousandths of give. I'm less concerned about the actual stiffness and more worried about dampening the wobble. This might be a place to use a technique the 3d printers are using. Called input_shaping. In the printers case the testing wiggle is 30 to 150 hz but in something this massive you might want to start the frequency of the scan at 1hz. The amplitude of the motion is then recorded by an accelerometer chip, usually an adxl345. The data collected is then used to program a digital filter, which does not effect the speed of the machine as it works to reduce the amplitude of the drive at those frequencies where the system is resonating. Such fancy math has been responsible for a 4 to 8x increase in the machines actual speed as it controls the ringing. Another different technique I have found helpful by accident is stepper/servo's. I am engraving some text of the sides of the printed nuts for the vise screws I'm building. Using normal steppers that bounce back and forth magnetically, that ringing restricts the speed of the printer to about 30mm a second if the text is not to be destroyed by the ringing. Switching to stepper/servo's has allowed me to drive the printer 10x faster and the text remains readable. The stepper/servo is actually dampening that magnetic bounce in real time. And they can do that on less power than a normal stepper, aided by the switch to higher voltage power supplies, up to 110 volts vs the 40 or so normal steppers limiting the bandwidth of the lower voltage normal steppers. The reduced power is because they are now using the detected error to control the motor current, motor working easy=low current and negligible heating, a difference you can see in your shops power bill. I'm now using 5 of them in the garage and have 3 more to put on my GO704. Capable of stopping linuxcnc in it tracks if they hit an immovable object, well tested, just one problem. It has yet to happen running a job! Check out Hanpose for the higher sized stuff you might need to replace the two servo's you are using now. <https://www.alibaba.com/product-detail/Lichuan-stepper-motor-nema-42-close_60697466670.html?spm=a2700.wholesale.you_may_like.3.4c101343U7AJp5> Drives a closed loop nema 42 motor rated 12NM from a 220 volt line. With a matching motor and the right set of belt pulleys it can turn your house around. For probably < $350 an axis. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users . Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
See cable beam stifferDo on 3 or 4 sides.Be safeDale 코스피 | | | | | | | | | | | 코스피 코스피 | | | On Monday, May 13, 2024 at 08:07:14 PM EDT, Dale Ertley wrote: Small blocks on the outside middle of beam on 3 or 4 sides of the beam with small aircraft cable attached to each end pulled tight. Use small turn buckles to tighten the cables over the block on that one side.You may be able to reduce the mass of the beam with the added stiffness of the blocks and cables. Be safe. Dale On Monday, May 13, 2024 at 07:31:34 PM EDT, Ralph Stirling via Emc-users wrote: Can you run a steel cable through it and tension it? Might stiffen it up some. -- Ralph On May 13, 2024 1:46 PM, Todd Zuercher via Emc-users wrote: CAUTION: This email originated from outside the Walla Walla University email system. Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam on a gantry router without adding too much mass? What is there now is a 4" x 8" rectangular 3/8" walled extrusion that is 145" long. Under normal jogging commands the two servos control the ends of this gantry reasonably well, but while the axis is homing the thing shakes and wobbles terribly bad. Also If I put a dial indicator in the center of the bridge and hit the bridge forward or backward it will flex and wobble enough to displace the dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it. But on the ends the servo's only have a few thousandths of give. I'm less concerned about the actual stiffness and more worried about dampening the wobble. Todd Zuercher P. Graham Dunn Inc.<https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.pgrahamdunn.com%2Findex.php=05%7C02%7Cralph.stirling%40wallawalla.edu%7Cdff9590d43bf4306dbf908dc738db7c0%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C638512299731202212%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C=p5p5BPV0oMEOCFeZea6DUqIke%2BXV8qgx9DzXe3NCQRs%3D=0<http://www.pgrahamdunn.com/index.php>> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C02%7Cralph.stirling%40wallawalla.edu%7Cdff9590d43bf4306dbf908dc738db7c0%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C638512299731211972%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C=R%2BIVQkZu7pKMlJz9sEZoUhdY5osxFE3oBpbf8jXpexY%3D=0<https://lists.sourceforge.net/lists/listinfo/emc-users> _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
Small blocks on the outside middle of beam on 3 or 4 sides of the beam with small aircraft cable attached to each end pulled tight. Use small turn buckles to tighten the cables over the block on that one side.You may be able to reduce the mass of the beam with the added stiffness of the blocks and cables. Be safe. Dale On Monday, May 13, 2024 at 07:31:34 PM EDT, Ralph Stirling via Emc-users wrote: Can you run a steel cable through it and tension it? Might stiffen it up some. -- Ralph On May 13, 2024 1:46 PM, Todd Zuercher via Emc-users wrote: CAUTION: This email originated from outside the Walla Walla University email system. Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam on a gantry router without adding too much mass? What is there now is a 4" x 8" rectangular 3/8" walled extrusion that is 145" long. Under normal jogging commands the two servos control the ends of this gantry reasonably well, but while the axis is homing the thing shakes and wobbles terribly bad. Also If I put a dial indicator in the center of the bridge and hit the bridge forward or backward it will flex and wobble enough to displace the dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it. But on the ends the servo's only have a few thousandths of give. I'm less concerned about the actual stiffness and more worried about dampening the wobble. Todd Zuercher P. Graham Dunn Inc.<https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.pgrahamdunn.com%2Findex.php=05%7C02%7Cralph.stirling%40wallawalla.edu%7Cdff9590d43bf4306dbf908dc738db7c0%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C638512299731202212%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C=p5p5BPV0oMEOCFeZea6DUqIke%2BXV8qgx9DzXe3NCQRs%3D=0<http://www.pgrahamdunn.com/index.php>> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C02%7Cralph.stirling%40wallawalla.edu%7Cdff9590d43bf4306dbf908dc738db7c0%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C638512299731211972%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C=R%2BIVQkZu7pKMlJz9sEZoUhdY5osxFE3oBpbf8jXpexY%3D=0<https://lists.sourceforge.net/lists/listinfo/emc-users> _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
Can you run a steel cable through it and tension it? Might stiffen it up some. -- Ralph On May 13, 2024 1:46 PM, Todd Zuercher via Emc-users wrote: CAUTION: This email originated from outside the Walla Walla University email system. Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam on a gantry router without adding too much mass? What is there now is a 4" x 8" rectangular 3/8" walled extrusion that is 145" long. Under normal jogging commands the two servos control the ends of this gantry reasonably well, but while the axis is homing the thing shakes and wobbles terribly bad. Also If I put a dial indicator in the center of the bridge and hit the bridge forward or backward it will flex and wobble enough to displace the dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it. But on the ends the servo's only have a few thousandths of give. I'm less concerned about the actual stiffness and more worried about dampening the wobble. Todd Zuercher P. Graham Dunn Inc.<https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.pgrahamdunn.com%2Findex.php=05%7C02%7Cralph.stirling%40wallawalla.edu%7Cdff9590d43bf4306dbf908dc738db7c0%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C638512299731202212%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C=p5p5BPV0oMEOCFeZea6DUqIke%2BXV8qgx9DzXe3NCQRs%3D=0<http://www.pgrahamdunn.com/index.php>> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C02%7Cralph.stirling%40wallawalla.edu%7Cdff9590d43bf4306dbf908dc738db7c0%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C638512299731211972%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C=R%2BIVQkZu7pKMlJz9sEZoUhdY5osxFE3oBpbf8jXpexY%3D=0<https://lists.sourceforge.net/lists/listinfo/emc-users> _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
On Mon, 13 May 2024 at 22:50, Chris Albertson wrote: > Adding anything inside is the worst place to add material. Yes, without a doubt, but it seems fair to assume that the ganry has slides and other components on the outside, but not on the inside. The base beam has an Iyy (bending in the plane of the smaller dimension ) of 22in^4 Doubling it internally gives: 34.2in^4, so about 50% stiffer Doubling externally gives: 57in^4 so getting on for 3x as stiff. I admit I was imagining a thinner wall thickness relative to the overall dimensions, where the difference would be smaller. There is less to be gained than you might think from making the section solid. You can do the experiments here: https://amesweb.info/section/second-moment-of-area-calculator.aspx If stiffness is the key, then add a stiff material. Aluminium is 68GPa (moving away from measuring in bananas) Steel is 200GPa (this is the same for all iron alloys, hardened or unhardened, including cast iron) Titanium is 114GPa, so good for light, not for stiff. Carbon fibre is 181Gpa for uindirectional fibres, but more typically around 50GPa. Tungsten carbide is 600GPa (which is why solid carbide boring bars exist) Beryllium is 287 but probably out of both budget and COSHH limits. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
Adding anything inside is the worst place to add material. Add it outside. Stiffness is the cube of the beam thickness, so you really want to make it bigger. Then secondary to making it bigger is to improve the shape to remove those parallel sides. So it you are just going to epoxy something on, try adding something like a channel section to the top or side of the beam. > On May 13, 2024, at 2:11 PM, andy pugh wrote: > > On Mon, 13 May 2024 at 21:51, Todd Zuercher via Emc-users < > emc-users@lists.sourceforge.net> wrote: > >> >> I'm less concerned about the actual stiffness and more worried about >> dampening the wobble. >> > > Maybe you could epoxy a smaller (aluminium?) extrusion or box inside the > existing one? The epoxy interface should add some damping. > > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is designed > for the especial use of mechanical geniuses, daredevils and lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
> On May 13, 2024, at 1:45 PM, Todd Zuercher via Emc-users > wrote: > > Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam > on a gantry router without adding too much mass? What is there now is a 4" x > 8" rectangular 3/8" walled extrusion that is 145" long. > > Under normal jogging commands the two servos control the ends of this gantry > reasonably well, but while the axis is homing the thing shakes and wobbles > terribly bad. Also If I put a dial indicator in the center of the bridge and > hit the bridge forward or backward it will flex and wobble enough to displace > the dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it. > But on the ends the servo's only have a few thousandths of give. > > I'm less concerned about the actual stiffness and more worried about > dampening the wobble. What is the extrusion made of, I assume it is some kind of aluminum alloy. The simplest but expensive option is to replace it with a stronger/stiffer material with the same dimensions. Of course Titanium comes to mind but that is maybe not in the budget.Carbon fiber could work and it is possible to DIY carbon fiber beams with just hand tools. I have made 4 meter long racing kayaks with carbon, using just a paint brush and scissors in one weekend. The first class way is to make a female mold and polish it well so the part looks nice. The cheap way is to make one like they make surfboards. You start with a foam block, shape it then wrap it in fiber and resin. The neat thing about carbon composite is that you are not limited to the extrusion shape. I would make the entire beam a compound curve with no flat or straight or cylindrical sections, Maybe like a very elongated American football but with ovil cross section. I like to use the car hood story. A flat sheet of sheet steel is bendable by hand. But after they stamp it into the shape of a car hood it becomes rigid. So rather then a square tube, way not oval but with a larger diameter in the center where all the bending force is? The way you make it is to first make a full-size model out of wood and bondo. Do a test-fit and give it an automotice grade paint finsh and then paste wax. Make a fiber glass mold, then from that your part. Yes that is a lot of work. This is why you have an aluminum extrusion there now, because that was easy and cheap. > > Todd Zuercher > P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Global Named Parameter?
I still think analog inputs/outputs could be a good way to go. I haven't run any of this, but something like this for the Python HAL component: https://gist.github.com/jallwine/1a0ad4ffcee00f31e286c485ea38a609 And something like this to hook it up in HAL: https://gist.github.com/jallwine/da023f11d859a7ae4d4a8b6974524386 Then you can use "M66 E0 L0" to copy the offset for joint 0 into #5399 if you need to know what it is in G code. You can also use "M68 E0 Q0.1234" to set the offset for joint 0. Change the E value to change which joint you want to configure. On Fri, May 10, 2024 at 12:56 PM Todd Zuercher via Emc-users < emc-users@lists.sourceforge.net> wrote: > Is there a way to bring out a tool offset to a hal pin? > > Here is a better description of what I'm trying to do. On this gang > router machine I'm working on. I created an extra joint for each of the 8 > stepper motors that move each of the 8 spindle Z axis. In the config I > have the Z axis connected to a dummy joint that doesn't actually do > anything. I have 8 enable signals from a gladevcp that can turn on/off > each spindle. When a spindle is enabled the spindle run signal is > connected to the VFD for that spindle, and the position command from the > dummy Z axis joint is connected to that spindle's extra Z-axis joint plus > an offset. I want to use that offset to adjust for tool and material > height differences between each of the spindles. When the spindle is > disabled, the spindle's extra joint is moved up to it's "zero" home > position and the VFD is disabled. > > I want the machine operator to both be able to manually make adjustments > to that offset between the Z-axis command and extra spindle joint, and be > able to use a probing routine to touch off the tool using a touch probe. > Initially I thought it would work well to use 8 tool offsets for this, but > I'm unsure of the best way to put those tool offset values on hal pins to > connect them to the offset pins. The machine will not be using T codes or > G43 tool offsets in the G-code, so using the tool table in not quite the > normal fashion shouldn't cause any problems. > > Todd Zuercher > P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > From: andy pugh > Sent: Thursday, May 09, 2024 7:33 PM > To: Enhanced Machine Controller (EMC) > Cc: Todd Zuercher > Subject: Re: [Emc-users] Global Named Parameter? > > > [EXTERNAL EMAIL] Be sure links are safe. > > > On Thu, 9 May 2024 at 18:55, Todd Zuercher via Emc-users < > emc-users@lists.sourceforge.net<mailto:emc-users@lists.sourceforge.net>> > wrote: > I would like to create a few persistent global named parameters. > > Hmmm > > You can make numbered parameters persistent simply by adding them to the > .vars file. > > So one way would be to run a subroutine in STARTUP_G_CODES which > transfers persistent numerical parameters into named ones. > But that leaves the storage of them unsolved. > > I did something like you describe with a Python HAL component a while ago. > Maybe this can be modified to do the trick for you? > > > https://forum.linuxcnc.org/38-general-linuxcnc-questions/50010-stmbl-pseudo-absolute-resolver-behaviour#280386 > > It basically loads some values from a file at startup, then saves the > values to file at shutdown. > > https://forum.linuxcnc.org/38-general-linuxcnc-questions/50010-stmbl-pseudo-absolute-resolver-behaviour#280386 > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is designed > for the especial use of mechanical geniuses, daredevils and lunatics." > - George Fitch, Atlanta Constitution Newspaper, 1912 > > ___________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Beam Stiffening?
On Mon, 13 May 2024 at 21:51, Todd Zuercher via Emc-users < emc-users@lists.sourceforge.net> wrote: > > I'm less concerned about the actual stiffness and more worried about > dampening the wobble. > Maybe you could epoxy a smaller (aluminium?) extrusion or box inside the existing one? The epoxy interface should add some damping. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Beam Stiffening?
Anyone have any brilliant ideas to stiffen a woefully inadequate cross beam on a gantry router without adding too much mass? What is there now is a 4" x 8" rectangular 3/8" walled extrusion that is 145" long. Under normal jogging commands the two servos control the ends of this gantry reasonably well, but while the axis is homing the thing shakes and wobbles terribly bad. Also If I put a dial indicator in the center of the bridge and hit the bridge forward or backward it will flex and wobble enough to displace the dial indicator +/-0.03 and it takes nearly a dozen wobbles to dampen it. But on the ends the servo's only have a few thousandths of give. I'm less concerned about the actual stiffness and more worried about dampening the wobble. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Global Named Parameter?
On Fri, 10 May 2024 at 21:11, Todd Zuercher wrote: > But I need to read them when they are not applied. > You could apply them, read them, then revert. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Why are there different sizes of centre drills?
I think if you have a large machine it won't spin fast enough and it will be to easy to break the tiny drill point. If you have a tiny lathe the chuck might be too small for large diameter center drill. John Figie On Sat, May 11, 2024, 8:19 AM Stuart Stevenson wrote: > Hi, > Sounds like you guys are talking about the tool known as a combination > center drill and countersink. > Most CNC operations use a spot drill as a precision starting guide for the > drill point entry. > I don't know about the precision differences between the two styles but if > you really require a close tolerance hole position you should use a more > involved process than just a spot (or center) drill and drill. Drills walk. > The main reason to use a spot drill is time. A spot drill is faster. > > regards > Stuart > > On Sat, May 11, 2024 at 1:50 AM > wrote: > > > On 2024-05-11 03:32, andy pugh wrote: > > > That's it. really. Why? A large-diameter one with a small drill point > > > could > > > make all the sizes. as far as I am aware the drilled hole is > > > irrelevant. I > > > suppose it might have mattered as a reservoir for the white lead in the > > > days of solid centres. > > > > Interesting question! > > The pilot (parallel) drill creates a hole for the very tip of the mating > > centre. If the drill had to cut the exact shape of the conical tip of > > the female hole, it would struggle to have proper cutting edges and > > still make the true cone. > > You are right that the conical end on the body of a large centre drill > > (ignoring the parallel tip) could cut all sizes of cone. But there might > > be some reasons for the different sizes: > > > > 1. very small centres would enter the parallel drilled hole, but miss > > the conical part. I have just been trying to clean some small center > > holes in a clockmaking tool designed to support the ends of small > > diameter clock shaft pivots which run between two female centres. Those > > pivots would completely miss the conical part of the female hole which > > had anything but the smallest parallel section at the end. > > > > 2. for male centres which will take a decent load, the end needs to bear > > inside a large (deep) female hole, so a large drill can be used here, > > especially when pushing drilling feeds and speeds. The flip-side of > > that is that allowing the body of the centre drill to set the final > > diameter provides a small amount of parallel recess at the outer end of > > the centre, which will foul a centre and hold it off the female cone. > > Centre drills do exist to create 'protected' centres with a larger > > parallel recess just at the entry to the female cone. Those drills have > > a short stepped-out section of cutting edge of larger diameter than the > > largest end of the female cone. > > > > 3. In pre-CNC days, the best way to set the size of a hole would be to > > have a drill of the correct diameter(s) mounted in a turret with stops. > > The operator then would not need to think, but could just pull the > > lever. Aside from the problem in (1), you could, of course, set the stop > > to make a large drill create a small diameter centre. Which makes CNC > > an obvious advantage, of course. > > > > Marcus > > > > > > ___ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > -- > Addressee is the intended audience. > If you are not the addressee then my consent is not given for you to read > this email furthermore it is my wish you would close this without saving or > reading, and cease and desist from saving or opening my private > correspondence. > Thank you for honoring my wish. > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Why are there different sizes of centre drills?
Hi, Sounds like you guys are talking about the tool known as a combination center drill and countersink. Most CNC operations use a spot drill as a precision starting guide for the drill point entry. I don't know about the precision differences between the two styles but if you really require a close tolerance hole position you should use a more involved process than just a spot (or center) drill and drill. Drills walk. The main reason to use a spot drill is time. A spot drill is faster. regards Stuart On Sat, May 11, 2024 at 1:50 AM wrote: > On 2024-05-11 03:32, andy pugh wrote: > > That's it. really. Why? A large-diameter one with a small drill point > > could > > make all the sizes. as far as I am aware the drilled hole is > > irrelevant. I > > suppose it might have mattered as a reservoir for the white lead in the > > days of solid centres. > > Interesting question! > The pilot (parallel) drill creates a hole for the very tip of the mating > centre. If the drill had to cut the exact shape of the conical tip of > the female hole, it would struggle to have proper cutting edges and > still make the true cone. > You are right that the conical end on the body of a large centre drill > (ignoring the parallel tip) could cut all sizes of cone. But there might > be some reasons for the different sizes: > > 1. very small centres would enter the parallel drilled hole, but miss > the conical part. I have just been trying to clean some small center > holes in a clockmaking tool designed to support the ends of small > diameter clock shaft pivots which run between two female centres. Those > pivots would completely miss the conical part of the female hole which > had anything but the smallest parallel section at the end. > > 2. for male centres which will take a decent load, the end needs to bear > inside a large (deep) female hole, so a large drill can be used here, > especially when pushing drilling feeds and speeds. The flip-side of > that is that allowing the body of the centre drill to set the final > diameter provides a small amount of parallel recess at the outer end of > the centre, which will foul a centre and hold it off the female cone. > Centre drills do exist to create 'protected' centres with a larger > parallel recess just at the entry to the female cone. Those drills have > a short stepped-out section of cutting edge of larger diameter than the > largest end of the female cone. > > 3. In pre-CNC days, the best way to set the size of a hole would be to > have a drill of the correct diameter(s) mounted in a turret with stops. > The operator then would not need to think, but could just pull the > lever. Aside from the problem in (1), you could, of course, set the stop > to make a large drill create a small diameter centre. Which makes CNC > an obvious advantage, of course. > > Marcus > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Addressee is the intended audience. If you are not the addressee then my consent is not given for you to read this email furthermore it is my wish you would close this without saving or reading, and cease and desist from saving or opening my private correspondence. Thank you for honoring my wish. ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cloning hard drive
On 5/10/24 19:44, Chris Albertson wrote: On May 10, 2024, at 9:49 AM, gene heskett wrote: On 5/10/24 11:25, Chris Albertson wrote: Rsync will copy data at the file system level.I think the OP wants to copy the partition tables and boot sector.But rsync can copy across a network and is a decent way to make a backup of your data. Clonzilla loks like it can work. I’ve always used “dd” because it is a two letter command and very easy to rember the exact spelling, and it just works. Clonzilla might be better for people who find it hard to type in long complex commands like “dd” and prefer a menu-based system. All good advice. Choose your favorite. The one I miss is the one that can take an arm64 install, with all the additions to do a job, and back it up over the network to a file that only the total used on that arm64 system. one that can then be copied to a fresh u-sd card of much greater capacity, and which will then on first boot, expand the partitions to use all of the new u-sd cards capacity. I've been using 64G cards and had had no losses. 16G cards are big enough but have a lifetime of around a year. I have some 128G I'll use for the next install. Raspberry Pi5 can use PCIe storage, no SD card is needed. Eventually, we will all stop using SD cards for system drives. I keep wanting to reconfigure my Pi4 to boot off the network with no SD card installed. The Pi3’s networking was too slow for this and the Pi5 does not need it. I might never get around to it. So what I do today is a compromise. I install Linux from an image file. I never store my data on the SD card. data is NFS mounted from the network server. This also means the data is always available on my other computers. I never have to move it. and if an SD card dies, nothing is lost. I never have to backup an SD card. Interesting concept. When I get time to concentrate on it. I'll probably pester you for details. Thanks Chris. ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cloning hard drive
On 5/10/24 14:27, Linden wrote: I have used clonezilla and DD for both back up and restore. Some where I have an interactive bash scripted I wrote for using DD. In the past when going from a small drive to a new larger drive the most reliable way I found was to use DD to clone and move the data and the use gparted to expand the partitions. Not the most elegant solution but has worked for me in the past. Just a thought might be worth looking at. I've considered that myself, but it feels sorta kludgy to me. But done in that sequence it should work. I'm in the middle of a different $$project ATM so it will be at least a month before I get to that. Thanks. On May 10, 2024 9:49:31 a.m. PDT, gene heskett wrote: On 5/10/24 11:25, Chris Albertson wrote: Rsync will copy data at the file system level.I think the OP wants to copy the partition tables and boot sector.But rsync can copy across a network and is a decent way to make a backup of your data. Clonzilla loks like it can work. I’ve always used “dd” because it is a two letter command and very easy to rember the exact spelling, and it just works. Clonzilla might be better for people who find it hard to type in long complex commands like “dd” and prefer a menu-based system. All good advice. Choose your favorite. The one I miss is the one that can take an arm64 install, with all the additions to do a job, and back it up over the network to a file that only the total used on that arm64 system. one that can then be copied to a fresh u-sd card of much greater capacity, and which will then on first boot, expand the partitions to use all of the new u-sd cards capacity. I've been using 64G cards and had had no losses. 16G cards are big enough but have a lifetime of around a year. I have some 128G I'll use for the next install. The theory is, the more surplus capacity the card has, the better the cards own software can maintain it. Power usage is about 25 watts total for the pi and nonitor when the lathe is powered down, so that rpi4 is never turned off, it even has a small ups that holds it up well while the kohler 20kw is starting, a black time of around 8 seconds. So I'm looking for a dd like command that will do that over my local network. cd / && sudo du -h says there is 6.2G in actual use. But there is a 256G buildbot drive not currently mounted but about 70% full, so that total would be considerably more. So what utility can make me a bootable image thats only 6.5G that I can store here, dd to a new card that will boot that pi and expand the file system? And come up capable of running linuxcnc with all the stuff I've written in the last decade. That is the $64 question. That seems like the ideal backup system for all the architectures here. And 1, 2T SSD could hold it all. On May 10, 2024, at 4:03 AM, gene heskett wrote: On 5/10/24 06:11, andrew beck wrote: hey everyone a bit off topic here i have my main laptop that i want to clone the hard drive on it for a identical laptop for a backup this is used for running the linuxcnc machines and programming drawing etc anyway just want to know what software people prefer for disk cloning i have never done it before and i'm sure someone on here is a expert on it cheers andrew rsync can do that but please read the man page carefully. It can bite you just as easily as it can help you. I use it, but will not call myself an expert. Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ______________
Re: [Emc-users] Why are there different sizes of centre drills?
On 2024-05-11 03:32, andy pugh wrote: That's it. really. Why? A large-diameter one with a small drill point could make all the sizes. as far as I am aware the drilled hole is irrelevant. I suppose it might have mattered as a reservoir for the white lead in the days of solid centres. Interesting question! The pilot (parallel) drill creates a hole for the very tip of the mating centre. If the drill had to cut the exact shape of the conical tip of the female hole, it would struggle to have proper cutting edges and still make the true cone. You are right that the conical end on the body of a large centre drill (ignoring the parallel tip) could cut all sizes of cone. But there might be some reasons for the different sizes: 1. very small centres would enter the parallel drilled hole, but miss the conical part. I have just been trying to clean some small center holes in a clockmaking tool designed to support the ends of small diameter clock shaft pivots which run between two female centres. Those pivots would completely miss the conical part of the female hole which had anything but the smallest parallel section at the end. 2. for male centres which will take a decent load, the end needs to bear inside a large (deep) female hole, so a large drill can be used here, especially when pushing drilling feeds and speeds. The flip-side of that is that allowing the body of the centre drill to set the final diameter provides a small amount of parallel recess at the outer end of the centre, which will foul a centre and hold it off the female cone. Centre drills do exist to create 'protected' centres with a larger parallel recess just at the entry to the female cone. Those drills have a short stepped-out section of cutting edge of larger diameter than the largest end of the female cone. 3. In pre-CNC days, the best way to set the size of a hole would be to have a drill of the correct diameter(s) mounted in a turret with stops. The operator then would not need to think, but could just pull the lever. Aside from the problem in (1), you could, of course, set the stop to make a large drill create a small diameter centre. Which makes CNC an obvious advantage, of course. Marcus ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa Card Stepgens?
On Fri, 10 May 2024, John Dammeyer wrote:
Date: Fri, 10 May 2024 18:26:21 -0700
From: John Dammeyer
Reply-To: "Enhanced Machine Controller (EMC)"
To: "'Enhanced Machine Controller (EMC)'"
Subject: Re: [Emc-users] Mesa Card Stepgens?
What type of output driver is used on the 7i84?
John
The 7I84/7I84D use the (now obsolete) NCV7608
It has flyback protection (turnoff speed modulation)
but that's only good to ~60 mA so for more you need
flyback diodes
It, replacement (7I84U) uses the NCV7224
The 7724 is a bit nicer as it can do sink,source,
or push-pull under software control
(and 350 mA on inductive or non-inductive loads with no flyback diodes)
-Original Message-
From: Peter Wallace [mailto:p...@mesanet.com]
Sent: May 10, 2024 1:54 PM
To: Todd Zuercher
Cc: Todd Zuercher via Emc-users
Subject: Re: [Emc-users] Mesa Card Stepgens?
On Fri, 10 May 2024, Todd Zuercher wrote:
Date: Fri, 10 May 2024 20:40:53 +
From: Todd Zuercher
To: Peter Wallace
Cc: Todd Zuercher via Emc-users
Subject: RE: [Emc-users] Mesa Card Stepgens?
Peter,
I've ran into another bit of a snag. I have a couple of 24v relays from
Automationdirect. The resistance on the coils is about 635ohms. I
thought
that the outputs on the 7i84 were supposed to be ok with running a small
relay with up to about 40mA without needing a flyback diode. It's close
but
just under that. Well, I've managed to kill 3 of the outputs with those
relays (the outputs are stuck always on). I've put a couple of diodes
on
the relay coils, I hope that works and I don't ruin any more. What does
it
take to replace the chip or chips that would be damaged by this?
40 mA should be fine, it is possible this is the card that had power
applied
backwards?
We can replace the chips
Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone: (330)828-2105ext. 2031
-Original Message-
From: Peter Wallace
Sent: Monday, April 15, 2024 5:09 PM
To: Todd Zuercher
Cc: Todd Zuercher via Emc-users
Subject: RE: [Emc-users] Mesa Card Stepgens?
[EXTERNAL EMAIL] Be sure links are safe.
On Mon, 15 Apr 2024, Todd Zuercher wrote:
Date: Mon, 15 Apr 2024 20:22:03 +
From: Todd Zuercher
To: Peter Wallace ,
Todd Zuercher via Emc-users
Subject: RE: [Emc-users] Mesa Card Stepgens?
Thanks Peter,
We've had this 7i85s for quite a while, and it must be one of the
early ones because I see DS34C87TM chips on it.
I'm not sure I like the idea of using them single ended. But is a
+5v-0v single ended signal actually any better or even much different
than a +/-3v differential signal? How hard would it be to move the
last steepen over to the 7i88 and have all 8 of these stepgens on one
card? I am not planning on using the Smart Serial output on the 7i88.
The 3 servos have been working on the 7i85S for years and can stay
there.
Differential is needed and advised for servo drives with line receiver
inputs,
however, with optocoupled input step/dir drives, there is little advantage
to
differential mode. With optocoupled input step/dir drives the input will
only
see ~3V drive in differential mode with the DS34C87 driver, so its better
to
run in single ended mode with the 7I85S sinking so you get full 5V drive.
I am using the Smart Serial connection on the 7i85s to connect a 7i84.
If all else fails I can simply set all of the other steppers the same
as the slow one and leave it be. Even the slow one is working as fast
or faster than I was hoping it would, but a little more safety margin
would
be nice.
The drives are likely not rated for 3V input so you would probably be
better
off if you ran single ended.
Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone: (330)828-2105ext. 2031
-Original Message-
From: Peter Wallace
Sent: Monday, April 15, 2024 3:41 PM
To: Todd Zuercher via Emc-users
Cc: Todd Zuercher
Subject: Re: [Emc-users] Mesa Card Stepgens?
[EXTERNAL EMAIL] Be sure links are safe.
On Mon, 15 Apr 2024, Todd Zuercher via Emc-users wrote:
Date: Mon, 15 Apr 2024 19:27:19 +
From: Todd Zuercher via Emc-users
To: "Enhanced Machine Controller (EMC)"
Cc: Todd Zuercher
Subject: [Emc-users] Mesa Card Stepgens?
I was working on this machine where I need a whole bunch of extra
stepgens. I am using a Mesa 7i85S and a 7i88 connected to a 5i25 card. I
was
testing some of the stepper drives and I noticed that with one of the
drive/motor combinations I am needing to use slightly longer step timing
and
lower max velocity. I thought that this was odd, because all of the
drives,
motors, and mechanicals are the same for all of the ones I was testing.
The
only difference is that the slower one was connected to a stepgen on the
7i85S and all of the others are on the 7i88. So just for curiosity sake I
checked
the voltage at the input terminals of step/dir signals of the drive. On
the
terminals conne
[Emc-users] Why are there different sizes of centre drills?
That's it. really. Why? A large-diameter one with a small drill point could make all the sizes. as far as I am aware the drilled hole is irrelevant. I suppose it might have mattered as a reservoir for the white lead in the days of solid centres. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa Card Stepgens?
What type of output driver is used on the 7i84? John > -Original Message- > From: Peter Wallace [mailto:p...@mesanet.com] > Sent: May 10, 2024 1:54 PM > To: Todd Zuercher > Cc: Todd Zuercher via Emc-users > Subject: Re: [Emc-users] Mesa Card Stepgens? > > On Fri, 10 May 2024, Todd Zuercher wrote: > > > Date: Fri, 10 May 2024 20:40:53 + > > From: Todd Zuercher > > To: Peter Wallace > > Cc: Todd Zuercher via Emc-users > > Subject: RE: [Emc-users] Mesa Card Stepgens? > > > > Peter, > > > > I've ran into another bit of a snag. I have a couple of 24v relays from > > Automationdirect. The resistance on the coils is about 635ohms. I thought > > that the outputs on the 7i84 were supposed to be ok with running a small > > relay with up to about 40mA without needing a flyback diode. It's close but > > just under that. Well, I've managed to kill 3 of the outputs with those > > relays (the outputs are stuck always on). I've put a couple of diodes on > > the relay coils, I hope that works and I don't ruin any more. What does it > > take to replace the chip or chips that would be damaged by this? > > 40 mA should be fine, it is possible this is the card that had power applied > backwards? > > We can replace the chips > > > > > Todd Zuercher > > P. Graham Dunn Inc. > > 630 Henry Street > > Dalton, Ohio 44618 > > Phone: (330)828-2105ext. 2031 > > > > -Original Message- > > From: Peter Wallace > > Sent: Monday, April 15, 2024 5:09 PM > > To: Todd Zuercher > > Cc: Todd Zuercher via Emc-users > > Subject: RE: [Emc-users] Mesa Card Stepgens? > > > > [EXTERNAL EMAIL] Be sure links are safe. > > > > On Mon, 15 Apr 2024, Todd Zuercher wrote: > > > >> Date: Mon, 15 Apr 2024 20:22:03 + > >> From: Todd Zuercher > >> To: Peter Wallace , > >> Todd Zuercher via Emc-users > >> Subject: RE: [Emc-users] Mesa Card Stepgens? > >> > >> Thanks Peter, > >> > >> We've had this 7i85s for quite a while, and it must be one of the > >> early ones because I see DS34C87TM chips on it. > >> > >> I'm not sure I like the idea of using them single ended. But is a > >> +5v-0v single ended signal actually any better or even much different > >> than a +/-3v differential signal? How hard would it be to move the > >> last steepen over to the 7i88 and have all 8 of these stepgens on one > >> card? I am not planning on using the Smart Serial output on the 7i88. > >> The 3 servos have been working on the 7i85S for years and can stay there. > > > > Differential is needed and advised for servo drives with line receiver inputs, > however, with optocoupled input step/dir drives, there is little advantage to > differential mode. With optocoupled input step/dir drives the input will only > see ~3V drive in differential mode with the DS34C87 driver, so its better to > run in single ended mode with the 7I85S sinking so you get full 5V drive. > > > >> > >> I am using the Smart Serial connection on the 7i85s to connect a 7i84. > >> > >> If all else fails I can simply set all of the other steppers the same > >> as the slow one and leave it be. Even the slow one is working as fast > >> or faster than I was hoping it would, but a little more safety margin would > be nice. > > > > The drives are likely not rated for 3V input so you would probably be better > off if you ran single ended. > > > > > >> > >> Todd Zuercher > >> P. Graham Dunn Inc. > >> 630 Henry Street > >> Dalton, Ohio 44618 > >> Phone: (330)828-2105ext. 2031 > >> > >> -Original Message- > >> From: Peter Wallace > >> Sent: Monday, April 15, 2024 3:41 PM > >> To: Todd Zuercher via Emc-users > >> Cc: Todd Zuercher > >> Subject: Re: [Emc-users] Mesa Card Stepgens? > >> > >> [EXTERNAL EMAIL] Be sure links are safe. > >> > >> On Mon, 15 Apr 2024, Todd Zuercher via Emc-users wrote: > >> > >>> Date: Mon, 15 Apr 2024 19:27:19 + > >>> From: Todd Zuercher via Emc-users > >>> To: "Enhanced Machine Controller (EMC)" > >>> > >>> Cc: Todd Zuercher > >>> Subject: [Emc-users] Mesa Card Stepgens? > >>> > >>> I was working on this machine where I need a whole bunch of extra > stepgens. I am using a Mesa 7i85S and a 7i88 connected to a 5i25 card. I was > testing some of
Re: [Emc-users] cloning hard drive
> On May 10, 2024, at 9:49 AM, gene heskett wrote: > > On 5/10/24 11:25, Chris Albertson wrote: >> Rsync will copy data at the file system level.I think the OP wants to >> copy the partition tables and boot sector.But rsync can copy across a >> network and is a decent way to make a backup of your data. >> Clonzilla loks like it can work. I’ve always used “dd” because it is a two >> letter command and very easy to rember the exact spelling, and it just >> works.Clonzilla might be better for people who find it hard to type in >> long complex commands like “dd” and prefer a menu-based system. > > All good advice. Choose your favorite. The one I miss is the one that can > take an arm64 install, with all the additions to do a job, and back it up > over the network to a file that only the total used on that arm64 system. one > that can then be copied to a fresh u-sd card of much greater capacity, and > which will then on first boot, expand the partitions to use all of the new > u-sd cards capacity. I've been using 64G cards and had had no losses. 16G > cards are big enough but have a lifetime of around a year. I have some 128G > I'll use for the next install. Raspberry Pi5 can use PCIe storage, no SD card is needed. Eventually, we will all stop using SD cards for system drives. I keep wanting to reconfigure my Pi4 to boot off the network with no SD card installed. The Pi3’s networking was too slow for this and the Pi5 does not need it. I might never get around to it. So what I do today is a compromise. I install Linux from an image file. I never store my data on the SD card. data is NFS mounted from the network server. This also means the data is always available on my other computers. I never have to move it. and if an SD card dies, nothing is lost. I never have to backup an SD card. ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa Card Stepgens?
Peter, I've ran into another bit of a snag. I have a couple of 24v relays from Automationdirect. The resistance on the coils is about 635ohms. I thought that the outputs on the 7i84 were supposed to be ok with running a small relay with up to about 40mA without needing a flyback diode. It's close but just under that. Well, I've managed to kill 3 of the outputs with those relays (the outputs are stuck always on). I've put a couple of diodes on the relay coils, I hope that works and I don't ruin any more. What does it take to replace the chip or chips that would be damaged by this? Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Peter Wallace Sent: Monday, April 15, 2024 5:09 PM To: Todd Zuercher Cc: Todd Zuercher via Emc-users Subject: RE: [Emc-users] Mesa Card Stepgens? [EXTERNAL EMAIL] Be sure links are safe. On Mon, 15 Apr 2024, Todd Zuercher wrote: > Date: Mon, 15 Apr 2024 20:22:03 + > From: Todd Zuercher > To: Peter Wallace , > Todd Zuercher via Emc-users > Subject: RE: [Emc-users] Mesa Card Stepgens? > > Thanks Peter, > > We've had this 7i85s for quite a while, and it must be one of the > early ones because I see DS34C87TM chips on it. > > I'm not sure I like the idea of using them single ended. But is a > +5v-0v single ended signal actually any better or even much different > than a +/-3v differential signal? How hard would it be to move the > last steepen over to the 7i88 and have all 8 of these stepgens on one > card? I am not planning on using the Smart Serial output on the 7i88. > The 3 servos have been working on the 7i85S for years and can stay there. Differential is needed and advised for servo drives with line receiver inputs, however, with optocoupled input step/dir drives, there is little advantage to differential mode. With optocoupled input step/dir drives the input will only see ~3V drive in differential mode with the DS34C87 driver, so its better to run in single ended mode with the 7I85S sinking so you get full 5V drive. > > I am using the Smart Serial connection on the 7i85s to connect a 7i84. > > If all else fails I can simply set all of the other steppers the same > as the slow one and leave it be. Even the slow one is working as fast > or faster than I was hoping it would, but a little more safety margin would > be nice. The drives are likely not rated for 3V input so you would probably be better off if you ran single ended. > > Todd Zuercher > P. Graham Dunn Inc. > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > -Original Message- > From: Peter Wallace > Sent: Monday, April 15, 2024 3:41 PM > To: Todd Zuercher via Emc-users > Cc: Todd Zuercher > Subject: Re: [Emc-users] Mesa Card Stepgens? > > [EXTERNAL EMAIL] Be sure links are safe. > > On Mon, 15 Apr 2024, Todd Zuercher via Emc-users wrote: > >> Date: Mon, 15 Apr 2024 19:27:19 +0000 >> From: Todd Zuercher via Emc-users >> To: "Enhanced Machine Controller (EMC)" >> >> Cc: Todd Zuercher >> Subject: [Emc-users] Mesa Card Stepgens? >> >> I was working on this machine where I need a whole bunch of extra stepgens. >> I am using a Mesa 7i85S and a 7i88 connected to a 5i25 card. I was testing >> some of the stepper drives and I noticed that with one of the drive/motor >> combinations I am needing to use slightly longer step timing and lower max >> velocity. I thought that this was odd, because all of the drives, motors, >> and mechanicals are the same for all of the ones I was testing. The only >> difference is that the slower one was connected to a stepgen on the 7i85S >> and all of the others are on the 7i88. So just for curiosity sake I checked >> the voltage at the input terminals of step/dir signals of the drive. On the >> terminals connected to the 7i88 I found +/-5v, and on the one connected to >> the 7i85S there is only +/-3v. This is the only difference I've been able >> to find between the different joints in question. >> >> Does it make sense that the voltages would be different on the step/dir >> outputs between the 7i85s and the 7i88? Does it make sense that the >> difference would cause a difference in the required step timing? Why might >> there be a difference between the output voltage on the two cards? >> >> Both cards are getting their 5v from the 5i25. The 7i85S is also connected >> to 3 step/gen servo drives and their encoder's feedbacks. Is it possible >> that the 5v drain from the encoders might be causing the lower voltage on >> the 7i85S's outputs? > > > I would check the 5V rail at the 7I85S card
Re: [Emc-users] Mesa Card Stepgens?
On Fri, 10 May 2024, Todd Zuercher wrote: Date: Fri, 10 May 2024 20:40:53 + From: Todd Zuercher To: Peter Wallace Cc: Todd Zuercher via Emc-users Subject: RE: [Emc-users] Mesa Card Stepgens? Peter, I've ran into another bit of a snag. I have a couple of 24v relays from Automationdirect. The resistance on the coils is about 635ohms. I thought that the outputs on the 7i84 were supposed to be ok with running a small relay with up to about 40mA without needing a flyback diode. It's close but just under that. Well, I've managed to kill 3 of the outputs with those relays (the outputs are stuck always on). I've put a couple of diodes on the relay coils, I hope that works and I don't ruin any more. What does it take to replace the chip or chips that would be damaged by this? 40 mA should be fine, it is possible this is the card that had power applied backwards? We can replace the chips Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Peter Wallace Sent: Monday, April 15, 2024 5:09 PM To: Todd Zuercher Cc: Todd Zuercher via Emc-users Subject: RE: [Emc-users] Mesa Card Stepgens? [EXTERNAL EMAIL] Be sure links are safe. On Mon, 15 Apr 2024, Todd Zuercher wrote: Date: Mon, 15 Apr 2024 20:22:03 + From: Todd Zuercher To: Peter Wallace , Todd Zuercher via Emc-users Subject: RE: [Emc-users] Mesa Card Stepgens? Thanks Peter, We've had this 7i85s for quite a while, and it must be one of the early ones because I see DS34C87TM chips on it. I'm not sure I like the idea of using them single ended. But is a +5v-0v single ended signal actually any better or even much different than a +/-3v differential signal? How hard would it be to move the last steepen over to the 7i88 and have all 8 of these stepgens on one card? I am not planning on using the Smart Serial output on the 7i88. The 3 servos have been working on the 7i85S for years and can stay there. Differential is needed and advised for servo drives with line receiver inputs, however, with optocoupled input step/dir drives, there is little advantage to differential mode. With optocoupled input step/dir drives the input will only see ~3V drive in differential mode with the DS34C87 driver, so its better to run in single ended mode with the 7I85S sinking so you get full 5V drive. I am using the Smart Serial connection on the 7i85s to connect a 7i84. If all else fails I can simply set all of the other steppers the same as the slow one and leave it be. Even the slow one is working as fast or faster than I was hoping it would, but a little more safety margin would be nice. The drives are likely not rated for 3V input so you would probably be better off if you ran single ended. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Peter Wallace Sent: Monday, April 15, 2024 3:41 PM To: Todd Zuercher via Emc-users Cc: Todd Zuercher Subject: Re: [Emc-users] Mesa Card Stepgens? [EXTERNAL EMAIL] Be sure links are safe. On Mon, 15 Apr 2024, Todd Zuercher via Emc-users wrote: Date: Mon, 15 Apr 2024 19:27:19 + From: Todd Zuercher via Emc-users To: "Enhanced Machine Controller (EMC)" Cc: Todd Zuercher Subject: [Emc-users] Mesa Card Stepgens? I was working on this machine where I need a whole bunch of extra stepgens. I am using a Mesa 7i85S and a 7i88 connected to a 5i25 card. I was testing some of the stepper drives and I noticed that with one of the drive/motor combinations I am needing to use slightly longer step timing and lower max velocity. I thought that this was odd, because all of the drives, motors, and mechanicals are the same for all of the ones I was testing. The only difference is that the slower one was connected to a stepgen on the 7i85S and all of the others are on the 7i88. So just for curiosity sake I checked the voltage at the input terminals of step/dir signals of the drive. On the terminals connected to the 7i88 I found +/-5v, and on the one connected to the 7i85S there is only +/-3v. This is the only difference I've been able to find between the different joints in question. Does it make sense that the voltages would be different on the step/dir outputs between the 7i85s and the 7i88? Does it make sense that the difference would cause a difference in the required step timing? Why might there be a difference between the output voltage on the two cards? Both cards are getting their 5v from the 5i25. The 7i85S is also connected to 3 step/gen servo drives and their encoder's feedbacks. Is it possible that the 5v drain from the encoders might be causing the lower voltage on the 7i85S's outputs? I would check the 5V rail at the 7I85S card, and if its low, power the 7I85S directly from 5V rather the through the parallel cable. ALso the very first lot (many years ago) of 7I85S
Re: [Emc-users] Global Named Parameter?
But I need to read them when they are not applied. (I'm not using the tool offsets in the conventional manor.) Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 From: Andy Pugh Sent: Friday, May 10, 2024 3:31 PM To: Todd Zuercher Cc: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Global Named Parameter? [EXTERNAL EMAIL] Be sure links are safe. On 10 May 2024, at 19:55, Todd Zuercher mailto:to...@pgrahamdunn.com>> wrote: Is there a way to bring out a tool offset to a hal pin? HALUI<http://linuxcnc.org/docs/stable/html/man/man1/halui.1.html#Tool> linuxcnc.org<http://linuxcnc.org/docs/stable/html/man/man1/halui.1.html#Tool> [cid:image001.png@01DAA2F4.C58B4690]<http://linuxcnc.org/docs/stable/html/man/man1/halui.1.html#Tool> Halui.tool _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Global Named Parameter?
Is there a way to bring out a tool offset to a hal pin? Here is a better description of what I'm trying to do. On this gang router machine I'm working on. I created an extra joint for each of the 8 stepper motors that move each of the 8 spindle Z axis. In the config I have the Z axis connected to a dummy joint that doesn't actually do anything. I have 8 enable signals from a gladevcp that can turn on/off each spindle. When a spindle is enabled the spindle run signal is connected to the VFD for that spindle, and the position command from the dummy Z axis joint is connected to that spindle's extra Z-axis joint plus an offset. I want to use that offset to adjust for tool and material height differences between each of the spindles. When the spindle is disabled, the spindle's extra joint is moved up to it's "zero" home position and the VFD is disabled. I want the machine operator to both be able to manually make adjustments to that offset between the Z-axis command and extra spindle joint, and be able to use a probing routine to touch off the tool using a touch probe. Initially I thought it would work well to use 8 tool offsets for this, but I'm unsure of the best way to put those tool offset values on hal pins to connect them to the offset pins. The machine will not be using T codes or G43 tool offsets in the G-code, so using the tool table in not quite the normal fashion shouldn't cause any problems. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 From: andy pugh Sent: Thursday, May 09, 2024 7:33 PM To: Enhanced Machine Controller (EMC) Cc: Todd Zuercher Subject: Re: [Emc-users] Global Named Parameter? [EXTERNAL EMAIL] Be sure links are safe. On Thu, 9 May 2024 at 18:55, Todd Zuercher via Emc-users mailto:emc-users@lists.sourceforge.net>> wrote: I would like to create a few persistent global named parameters. Hmmm You can make numbered parameters persistent simply by adding them to the .vars file. So one way would be to run a subroutine in STARTUP_G_CODES which transfers persistent numerical parameters into named ones. But that leaves the storage of them unsolved. I did something like you describe with a Python HAL component a while ago. Maybe this can be modified to do the trick for you? https://forum.linuxcnc.org/38-general-linuxcnc-questions/50010-stmbl-pseudo-absolute-resolver-behaviour#280386 It basically loads some values from a file at startup, then saves the values to file at shutdown. https://forum.linuxcnc.org/38-general-linuxcnc-questions/50010-stmbl-pseudo-absolute-resolver-behaviour#280386 -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." - George Fitch, Atlanta Constitution Newspaper, 1912 ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cloning hard drive
I have used clonezilla and DD for both back up and restore. Some where I have an interactive bash scripted I wrote for using DD. In the past when going from a small drive to a new larger drive the most reliable way I found was to use DD to clone and move the data and the use gparted to expand the partitions. Not the most elegant solution but has worked for me in the past. Just a thought might be worth looking at. On May 10, 2024 9:49:31 a.m. PDT, gene heskett wrote: >On 5/10/24 11:25, Chris Albertson wrote: >> Rsync will copy data at the file system level.I think the OP wants to >> copy the partition tables and boot sector.But rsync can copy across a >> network and is a decent way to make a backup of your data. >> >> Clonzilla loks like it can work. I’ve always used “dd” because it is a two >> letter command and very easy to rember the exact spelling, and it just >> works.Clonzilla might be better for people who find it hard to type in >> long complex commands like “dd” and prefer a menu-based system. > >All good advice. Choose your favorite. The one I miss is the one that can >take an arm64 install, with all the additions to do a job, and back it up over >the network to a file that only the total used on that arm64 system. one that >can then be copied to a fresh u-sd card of much greater capacity, and which >will then on first boot, expand the partitions to use all of the new u-sd >cards capacity. I've been using 64G cards and had had no losses. 16G cards are >big enough but have a lifetime of around a year. I have some 128G I'll use for >the next install. > >The theory is, the more surplus capacity the card has, the better the cards >own software can maintain it. Power usage is about 25 watts total for the pi >and nonitor when the lathe is powered down, so that rpi4 is never turned off, >it even has a small ups that holds it up well while the kohler 20kw is >starting, a black time of around 8 seconds. >So I'm looking for a dd like command that will do that over my local network. >cd / && sudo du -h says there is 6.2G in actual use. But there is a 256G >buildbot drive not currently mounted but about 70% full, so that total would >be considerably more. > >So what utility can make me a bootable image thats only 6.5G that I can store >here, dd to a new card that will boot that pi and expand the file system? And >come up capable of running linuxcnc with all the stuff I've written in the >last decade. That is the $64 question. That seems like the ideal backup >system for all the architectures here. And 1, 2T SSD could hold it all. > >>> On May 10, 2024, at 4:03 AM, gene heskett wrote: >>> >>> On 5/10/24 06:11, andrew beck wrote: >>>> hey everyone >>>> a bit off topic here >>>> i have my main laptop that i want to clone the hard drive on it for a >>>> identical laptop for a backup >>>> this is used for running the linuxcnc machines and programming drawing etc >>>> anyway just want to know what software people prefer for disk cloning i >>>> have never done it before and i'm sure someone on here is a expert on it >>>> cheers >>>> andrew >>> rsync can do that but please read the man page carefully. It can bite you >>> just as easily as it can help you. I use it, but will not call myself an >>> expert. >>> >>> Cheers, Gene Heskett, CET. >>> -- >>> "There are four boxes to be used in defense of liberty: >>> soap, ballot, jury, and ammo. Please use in that order." >>> -Ed Howdershelt (Author, 1940) >>> If we desire respect for the law, we must first make the law respectable. >>> - Louis D. Brandeis >>> >>> >>> >>> ___ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> >> >> ___________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > >Cheers, Gene Heskett, CET. >-- >"There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." >-Ed Howdershelt (Author, 1940) >If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > > > >___ >Emc-users mailing list >Emc-users@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cloning hard drive
On 5/10/24 11:25, Chris Albertson wrote: Rsync will copy data at the file system level.I think the OP wants to copy the partition tables and boot sector.But rsync can copy across a network and is a decent way to make a backup of your data. Clonzilla loks like it can work. I’ve always used “dd” because it is a two letter command and very easy to rember the exact spelling, and it just works. Clonzilla might be better for people who find it hard to type in long complex commands like “dd” and prefer a menu-based system. All good advice. Choose your favorite. The one I miss is the one that can take an arm64 install, with all the additions to do a job, and back it up over the network to a file that only the total used on that arm64 system. one that can then be copied to a fresh u-sd card of much greater capacity, and which will then on first boot, expand the partitions to use all of the new u-sd cards capacity. I've been using 64G cards and had had no losses. 16G cards are big enough but have a lifetime of around a year. I have some 128G I'll use for the next install. The theory is, the more surplus capacity the card has, the better the cards own software can maintain it. Power usage is about 25 watts total for the pi and nonitor when the lathe is powered down, so that rpi4 is never turned off, it even has a small ups that holds it up well while the kohler 20kw is starting, a black time of around 8 seconds. So I'm looking for a dd like command that will do that over my local network. cd / && sudo du -h says there is 6.2G in actual use. But there is a 256G buildbot drive not currently mounted but about 70% full, so that total would be considerably more. So what utility can make me a bootable image thats only 6.5G that I can store here, dd to a new card that will boot that pi and expand the file system? And come up capable of running linuxcnc with all the stuff I've written in the last decade. That is the $64 question. That seems like the ideal backup system for all the architectures here. And 1, 2T SSD could hold it all. On May 10, 2024, at 4:03 AM, gene heskett wrote: On 5/10/24 06:11, andrew beck wrote: hey everyone a bit off topic here i have my main laptop that i want to clone the hard drive on it for a identical laptop for a backup this is used for running the linuxcnc machines and programming drawing etc anyway just want to know what software people prefer for disk cloning i have never done it before and i'm sure someone on here is a expert on it cheers andrew rsync can do that but please read the man page carefully. It can bite you just as easily as it can help you. I use it, but will not call myself an expert. Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cloning hard drive
Rsync will copy data at the file system level.I think the OP wants to copy the partition tables and boot sector.But rsync can copy across a network and is a decent way to make a backup of your data. Clonzilla loks like it can work. I’ve always used “dd” because it is a two letter command and very easy to rember the exact spelling, and it just works. Clonzilla might be better for people who find it hard to type in long complex commands like “dd” and prefer a menu-based system. > On May 10, 2024, at 4:03 AM, gene heskett wrote: > > On 5/10/24 06:11, andrew beck wrote: >> hey everyone >> a bit off topic here >> i have my main laptop that i want to clone the hard drive on it for a >> identical laptop for a backup >> this is used for running the linuxcnc machines and programming drawing etc >> anyway just want to know what software people prefer for disk cloning i >> have never done it before and i'm sure someone on here is a expert on it >> cheers >> andrew > rsync can do that but please read the man page carefully. It can bite you > just as easily as it can help you. I use it, but will not call myself an > expert. > > Cheers, Gene Heskett, CET. > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > > > > _______ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cloning hard drive
I assume the laptop runs Linux.If so then you’d use “dd” to clone the disk drive. “dd” is installed on every Linux system I’ve ever seem. So you already have it. This assumes you are copying it to an identical drive. The trouble is that you can not have booted from the drive you are copying from because the OS will be writing to that drive as it is being copied. So what you do is boot off the USB drive or if it is an older computer off the CDROM. This way my assumption that you are running Linux is true because you would use a Ubuntu install image on the USB stick Both drives need to be connected to the computer, the second one can be placed in a USB enclosure Get to the command line and type dd if=/dev/sda of=/dev/sdb SDA and SDB are place holders for the real names of the two drives, likely your drives have different names. Do not swap the names of the drive or you will copy the empty drive over you data. make a backup of you data first, then veriify you can read the backup, then clone the disk. Rea the dd man page. Remember that “if" is “input file” or “of” is “output file" For more info read the dd man page or Google “clone drive using dd” All that said “cloning” the drive is not very usfull. Betther to just backup the data and when the disk dies replace it with a better one (bigger, faster) reinstall the OS and then restore your data. The clone will qickly become obsolite as you make changed and update software, best to just do a regular, noroaml backup.My computers mostly have a continous backup runnig that copies changes in real time so I loose at most an hour’s work > On May 10, 2024, at 2:10 AM, andrew beck wrote: > > hey everyone > > a bit off topic here > > i have my main laptop that i want to clone the hard drive on it for a > identical laptop for a backup > > this is used for running the linuxcnc machines and programming drawing etc > > anyway just want to know what software people prefer for disk cloning i > have never done it before and i'm sure someone on here is a expert on it > > cheers > > andrew > > _______ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cloning hard drive
I'll 3rd Clonezilla. I also use it quite a bit at work, for backing up and restoration of hard drives for machines, (mostly Windows machines, but it works on Linux as well.) Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Sam Sokolik Sent: Friday, May 10, 2024 6:50 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] cloning hard drive [EXTERNAL EMAIL] Be sure links are safe. 2nd clonezilla.. use it all the time at work. On Fri, May 10, 2024, 5:42 AM Ed wrote: > On 5/10/24 4:10 AM, andrew beck wrote: > > hey everyone > > > > a bit off topic here > > > > i have my main laptop that i want to clone the hard drive on it for > > a identical laptop for a backup > > > > this is used for running the linuxcnc machines and programming > > drawing > etc > > > > anyway just want to know what software people prefer for disk > > cloning i have never done it before and i'm sure someone on here is > > a expert on it > > > > cheers > > > > andrew > > Not an expert. > > Clonezilla. > > The computer that ran my CHNC lathe went down but the drive was OK. > Used Clonezilla and transferred from a PATA drive to a SATA on a newer > computer and was back on the air in about 2 hrs total. > > > Ed. > > > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://list/ > s.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C02%7Ctoddz% > 40pgrahamdunn.com%7C5b7b68c5c80745f1683b08dc70df26bf%7C5758544c573f47c > ebee96c3e0806fb43%7C0%7C0%7C638509350948595383%7CUnknown%7CTWFpbGZsb3d > 8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C > 0%7C%7C%7C=jFUoKK1NxJ0aZqNC%2FmKsy8%2BPTVysmPibAPUwPd%2FbNKE%3D& > reserved=0 > _______________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cloning hard drive
On 5/10/24 06:11, andrew beck wrote: hey everyone a bit off topic here i have my main laptop that i want to clone the hard drive on it for a identical laptop for a backup this is used for running the linuxcnc machines and programming drawing etc anyway just want to know what software people prefer for disk cloning i have never done it before and i'm sure someone on here is a expert on it cheers andrew rsync can do that but please read the man page carefully. It can bite you just as easily as it can help you. I use it, but will not call myself an expert. Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cloning hard drive
2nd clonezilla.. use it all the time at work. On Fri, May 10, 2024, 5:42 AM Ed wrote: > On 5/10/24 4:10 AM, andrew beck wrote: > > hey everyone > > > > a bit off topic here > > > > i have my main laptop that i want to clone the hard drive on it for a > > identical laptop for a backup > > > > this is used for running the linuxcnc machines and programming drawing > etc > > > > anyway just want to know what software people prefer for disk cloning i > > have never done it before and i'm sure someone on here is a expert on it > > > > cheers > > > > andrew > > Not an expert. > > Clonezilla. > > The computer that ran my CHNC lathe went down but the drive was OK. Used > Clonezilla and transferred from a PATA drive to a SATA on a newer > computer and was back on the air in about 2 hrs total. > > > Ed. > > > > > _______ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cloning hard drive
On 5/10/24 4:10 AM, andrew beck wrote: hey everyone a bit off topic here i have my main laptop that i want to clone the hard drive on it for a identical laptop for a backup this is used for running the linuxcnc machines and programming drawing etc anyway just want to know what software people prefer for disk cloning i have never done it before and i'm sure someone on here is a expert on it cheers andrew Not an expert. Clonezilla. The computer that ran my CHNC lathe went down but the drive was OK. Used Clonezilla and transferred from a PATA drive to a SATA on a newer computer and was back on the air in about 2 hrs total. Ed. ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] cloning hard drive
hey everyone a bit off topic here i have my main laptop that i want to clone the hard drive on it for a identical laptop for a backup this is used for running the linuxcnc machines and programming drawing etc anyway just want to know what software people prefer for disk cloning i have never done it before and i'm sure someone on here is a expert on it cheers andrew ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Global Named Parameter?
On Thu, 9 May 2024 at 18:55, Todd Zuercher via Emc-users < emc-users@lists.sourceforge.net> wrote: > I would like to create a few persistent global named parameters. > Hmmm You can make numbered parameters persistent simply by adding them to the .vars file. So one way would be to run a subroutine in STARTUP_G_CODES which transfers persistent numerical parameters into named ones. But that leaves the storage of them unsolved. I did something like you describe with a Python HAL component a while ago. Maybe this can be modified to do the trick for you? https://forum.linuxcnc.org/38-general-linuxcnc-questions/50010-stmbl-pseudo-absolute-resolver-behaviour#280386 It basically loads some values from a file at startup, then saves the values to file at shutdown. https://forum.linuxcnc.org/38-general-linuxcnc-questions/50010-stmbl-pseudo-absolute-resolver-behaviour#280386 -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Global Named Parameter?
Maybe use analog inputs and outputs and hook them up to a custom Python HAL component that handles the serialization for storing between sessions? https://linuxcnc.org/docs/2.8/html/gcode/m-code.html#mcode:m66 https://linuxcnc.org/docs/2.8/html/gcode/m-code.html#mcode:m68 Those hook into the motion.analog-in-## and motion.analog-out-## HAL pins. -John On Thu, May 9, 2024 at 11:50 AM Todd Zuercher via Emc-users < emc-users@lists.sourceforge.net> wrote: > I would like to create a few persistent global named parameters. I want > to be able to set and read the values of these parameters and save the > value from one session to the next, and I want to be able to have the > current value of these expressed as a hal output pin. > > I want to use these parameters for setting and remembering the position > offsets for extra joints (non axes joints). > > Am I thinking along the right lines for this, or might there be a better > way? Initially I thought about using tool offset table values, but I > wasn't sure how to get those as hal pins to use in the hal file for > offsetting the joint's position. > > Todd Zuercher > P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > > _______ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Global Named Parameter?
I would like to create a few persistent global named parameters. I want to be able to set and read the values of these parameters and save the value from one session to the next, and I want to be able to have the current value of these expressed as a hal output pin. I want to use these parameters for setting and remembering the position offsets for extra joints (non axes joints). Am I thinking along the right lines for this, or might there be a better way? Initially I thought about using tool offset table values, but I wasn't sure how to get those as hal pins to use in the hal file for offsetting the joint's position. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mb2hal 2.9?
On 5/8/24 13:44, Todd Zuercher via Emc-users wrote: Gene, Tell me more about this udev bug. I'm not so sure this system even has it. If I check the directory /dev/serial/by-id is there and has one device in it, and it looks like it is most likely my device. If my system was affected bu this bug would the by-id directory not be there, or would it not have any devices in it, or would the device just not work? I've a usb tree resembling a weeping willow, over a dozen usb cables plugged into at least three 4-port expanders, one of which is a 7 port and its full, so my output from that command shows 2 devices. One is driving an X10 CM11a to control some lights. And I don't recall what the other is doing. The x10 stuff has only been running about 35 years. I'm one of the two authors of the Amiga's ezhome software for x19 stuff. I've long since forgot the nitty and gritty details of what all I had it doing. Whatever you have that did use the /dev/serial/by-id stuff would not be working if the bug is present. Buster is ok, bullseye and bookworm will fail and the final trixie is supposed to be fixed. Your stuff is probably too old to be effected. Take care & stay well Todd. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: gene heskett Sent: Wednesday, May 08, 2024 12:23 PM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Mb2hal 2.9? [EXTERNAL EMAIL] Be sure links are safe. On 5/8/24 08:13, Todd Zuercher via Emc-users wrote: No, they are not. The old pc was running Ubuntu 10.04. (Because that was the last Linuxcnc distro that seemed work with this old pc and it's ISA IO card.) The new PC is running Debian 12 (installed using an ordinary Debian net install iso). The groups the user belongs to on the PC are "adm, dialout, cdrom, plugdev, lpadmin, admin, and sambashare". The groups for the new PC are "cdrom, floppy, sudo, audio, dip, video, plugdev, users, netdev, lpadmin, and scanner" So, I'm not sure, to my unskilled eye, it would seem that "dialout" might be the most logical possible permission deficiency, but I'm not sure if "dip" might be an equivalent replacement for that. Your debian 12 install has the udev bug I sent you a link to the fix already. It restores the missing two lines that setup the serial/by-id stuff for usb. Todd Zuercher P. Graham Dunn Inc.<https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2F http://www.pgrahamdunn.com/%2Findex.php=05%7C02%7Ctoddz%40pgrahamdunn.com %7Cf9247dc4415e4c243c9a08dc6f7b57d0%7C5758544c573f47cebee96c3e0806fb43 %7C0%7C0%7C638507822770580921%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAw MDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C= C4dBybKwKVpfOPShClzy%2BeP0urLVchdbYjNJ726xmHM%3D=0> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 From: andy pugh Sent: Wednesday, May 08, 2024 4:18 AM To: Enhanced Machine Controller (EMC) Cc: Todd Zuercher Subject: Re: [Emc-users] Mb2hal 2.9? [EXTERNAL EMAIL] Be sure links are safe. On Wed, 8 May 2024 at 02:15, Todd Zuercher via Emc-users mailto:emc-users@lists.sourceforge.net>> wrote: It was already set to 3. What is your MB2HAL load line? What does lsusb call the dongle? Are the two PCs in question running the same version of Linux? -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." - George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://list/ s.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C02%7Ctoddz% 40pgrahamdunn.com%7Cf9247dc4415e4c243c9a08dc6f7b57d0%7C5758544c573f47c ebee96c3e0806fb43%7C0%7C0%7C638507822770589530%7CUnknown%7CTWFpbGZsb3d 8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C 0%7C%7C%7C=SgEuARxP0MmsgoB3BljySPtlJKAxijEVAv8qQbwQYYU%3D ed=0 Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users . Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brande
Re: [Emc-users] Mb2hal 2.9?
Like I said earlier, I added the user to the dialout group (using that usermod command below) and that fixed my issue. My system does not show /dev/ttyUSB0 as locked (I can't say for sure if that was the case before I added dialout to the user's groups. "stat /dev/ttyUSB0" does contain Gid: ( 20/ dialout) Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: zz...@seznam.cz Sent: Wednesday, May 08, 2024 1:45 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Mb2hal 2.9? [You don't often get email from zz...@seznam.cz. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] [EXTERNAL EMAIL] Be sure links are safe. Bookworm has /dev/ttyUSB "locked" File icon has red cross stat /dev/ttyUSB0 Check if it contain: Gid: ( 20/ dialout) Then: sudo usermod -a -G dialout $USER "-- Původní zpráva -- Od: Todd Zuercher via Emc-users Datum: 08.05.2024 19:27:15 Předmět: Re: [Emc-users] Mb2hal 2.9? Thanks Gene, I'm not sure that, bug is completely relevant to my issue. As my Mb2hal config never used serial/by-id. It has always used /dev/ttyUSB0 to address the RS485 device. Maybe serial by id might be a better way to address the specific serial port used, but I am not even sure if it is even be supported by Mb2hal or exactly how to set it up that way (none of the example Mb2hal configurations use it.) And even if it were possible, I'm not sure if I still would have had the permission problems and I would have also had to fix the udev bug first. Changing the permission is all I needed to do to get this working as it was before. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: gene heskett Sent: Wednesday, May 08, 2024 12:23 PM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Mb2hal 2.9? [EXTERNAL EMAIL] Be sure links are safe. On 5/8/24 08:13, Todd Zuercher via Emc-users wrote: > No, they are not. The old pc was running Ubuntu 10.04. (Because that > was the last Linuxcnc distro that seemed work with this old pc and it's ISA IO card.) The new PC is running Debian 12 (installed using an ordinary Debian net install iso). > > The groups the user belongs to on the PC are "adm, dialout, cdrom, plugdev, lpadmin, admin, and sambashare". The groups for the new PC are "cdrom, floppy, sudo, audio, dip, video, plugdev, users, netdev, lpadmin, and scanner" > > So, I'm not sure, to my unskilled eye, it would seem that "dialout" > might be the most logical possible permission deficiency, but I'm not sure if "dip" might be an equivalent replacement for that. > Your debian 12 install has the udev bug I sent you a link to the fix already. It restores the missing two lines that setup the serial/by-id stuff for usb. > Todd Zuercher > P. Graham Dunn > Inc.> > http://www.p/ > grahamdunn.com%2F%252Findex.php%26data%3D05%257C02%257Ctoddz%2540 > =05%7C02%7Ctoddz%40pgrahamdunn.com%7C59f83c23425d48a02e7308dc6f8b585a% > 7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638507891505884667%7CUnkn > own%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi > LCJXVCI6Mn0%3D%7C0%7C%7C%7C=AiUEBo31wTc8tCmh01ycujCEAsHQS1vaCpN0 > RI5YgCM%3D=0 pgrahamdunn.com > %7Cf9247dc4415e4c243c9a08dc6f7b57d0%7C5758544c573f47cebee96c3e0806fb43 > %7C0%7C0%7C638507822770580921%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAw > MDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C= > C4dBybKwKVpfOPShClzy%2BeP0urLVchdbYjNJ726xmHM%3D=0> > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > From: andy pugh > Sent: Wednesday, May 08, 2024 4:18 AM > To: Enhanced Machine Controller (EMC) > > Cc: Todd Zuercher > Subject: Re: [Emc-users] Mb2hal 2.9? > > > [EXTERNAL EMAIL] Be sure links are safe. > > > On Wed, 8 May 2024 at 02:15, Todd Zuercher via Emc-users > wrote: > It was already set to 3. > > What is your MB2HAL load line? > What does lsusb call the dongle? > > Are the two PCs in question running the same version of Linux? > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and lunatics." > - George Fitch, Atlanta Constitution Newspaper, 1912 > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://list/ > s.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C02%7Ctoddz% > 40pgrahamdunn.com%7Cf9247dc4415e4c243c9a08dc6f7b57d0%7C5758544c573f47c > ebee96c3e0806fb43%7C0%7C0%7C638507822770589530%7CUnknown%7CTWFpbGZsb3d > 8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJX
Re: [Emc-users] Mb2hal 2.9?
Bookworm has /dev/ttyUSB "locked" File icon has red cross stat /dev/ttyUSB0 Check if it contain: Gid: ( 20/ dialout) Then: sudo usermod -a -G dialout $USER "-- Původní zpráva -- Od: Todd Zuercher via Emc-users Datum: 08.05.2024 19:27:15 Předmět: Re: [Emc-users] Mb2hal 2.9? Thanks Gene, I'm not sure that, bug is completely relevant to my issue. As my Mb2hal config never used serial/by-id. It has always used /dev/ttyUSB0 to address the RS485 device. Maybe serial by id might be a better way to address the specific serial port used, but I am not even sure if it is even be supported by Mb2hal or exactly how to set it up that way (none of the example Mb2hal configurations use it.) And even if it were possible, I'm not sure if I still would have had the permission problems and I would have also had to fix the udev bug first. Changing the permission is all I needed to do to get this working as it was before. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: gene heskett Sent: Wednesday, May 08, 2024 12:23 PM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Mb2hal 2.9? [EXTERNAL EMAIL] Be sure links are safe. On 5/8/24 08:13, Todd Zuercher via Emc-users wrote: > No, they are not. The old pc was running Ubuntu 10.04. (Because that was the last Linuxcnc distro that seemed work with this old pc and it's ISA IO card.) The new PC is running Debian 12 (installed using an ordinary Debian net install iso). > > The groups the user belongs to on the PC are "adm, dialout, cdrom, plugdev, lpadmin, admin, and sambashare". The groups for the new PC are "cdrom, floppy, sudo, audio, dip, video, plugdev, users, netdev, lpadmin, and scanner" > > So, I'm not sure, to my unskilled eye, it would seem that "dialout" might be the most logical possible permission deficiency, but I'm not sure if "dip" might be an equivalent replacement for that. > Your debian 12 install has the udev bug I sent you a link to the fix already. It restores the missing two lines that setup the serial/by-id stuff for usb. > Todd Zuercher > P. Graham Dunn > Inc.> http://www.pgrahamdunn.com/%2Findex.php=05%7C02%7Ctoddz%40 pgrahamdunn.com > %7Cf9247dc4415e4c243c9a08dc6f7b57d0%7C5758544c573f47cebee96c3e0806fb43 > %7C0%7C0%7C638507822770580921%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAw > MDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C= > C4dBybKwKVpfOPShClzy%2BeP0urLVchdbYjNJ726xmHM%3D=0> > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > From: andy pugh > Sent: Wednesday, May 08, 2024 4:18 AM > To: Enhanced Machine Controller (EMC) > > Cc: Todd Zuercher > Subject: Re: [Emc-users] Mb2hal 2.9? > > > [EXTERNAL EMAIL] Be sure links are safe. > > > On Wed, 8 May 2024 at 02:15, Todd Zuercher via Emc-users > wrote: > It was already set to 3. > > What is your MB2HAL load line? > What does lsusb call the dongle? > > Are the two PCs in question running the same version of Linux? > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." > - George Fitch, Atlanta Constitution Newspaper, 1912 > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://list/ > s.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C02%7Ctoddz% > 40pgrahamdunn.com%7Cf9247dc4415e4c243c9a08dc6f7b57d0%7C5758544c573f47c > ebee96c3e0806fb43%7C0%7C0%7C638507822770589530%7CUnknown%7CTWFpbGZsb3d > 8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C > 0%7C%7C%7C=SgEuARxP0MmsgoB3BljySPtlJKAxijEVAv8qQbwQYYU%3D > ed=0 Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users " ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mb2hal 2.9?
Gene, Tell me more about this udev bug. I'm not so sure this system even has it. If I check the directory /dev/serial/by-id is there and has one device in it, and it looks like it is most likely my device. If my system was affected bu this bug would the by-id directory not be there, or would it not have any devices in it, or would the device just not work? Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: gene heskett Sent: Wednesday, May 08, 2024 12:23 PM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Mb2hal 2.9? [EXTERNAL EMAIL] Be sure links are safe. On 5/8/24 08:13, Todd Zuercher via Emc-users wrote: > No, they are not. The old pc was running Ubuntu 10.04. (Because that was > the last Linuxcnc distro that seemed work with this old pc and it's ISA IO > card.) The new PC is running Debian 12 (installed using an ordinary Debian > net install iso). > > The groups the user belongs to on the PC are "adm, dialout, cdrom, plugdev, > lpadmin, admin, and sambashare". The groups for the new PC are "cdrom, > floppy, sudo, audio, dip, video, plugdev, users, netdev, lpadmin, and scanner" > > So, I'm not sure, to my unskilled eye, it would seem that "dialout" might be > the most logical possible permission deficiency, but I'm not sure if "dip" > might be an equivalent replacement for that. > Your debian 12 install has the udev bug I sent you a link to the fix already. It restores the missing two lines that setup the serial/by-id stuff for usb. > Todd Zuercher > P. Graham Dunn > Inc.<https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2F > http://www.pgrahamdunn.com/%2Findex.php=05%7C02%7Ctoddz%40pgrahamdunn.com > %7Cf9247dc4415e4c243c9a08dc6f7b57d0%7C5758544c573f47cebee96c3e0806fb43 > %7C0%7C0%7C638507822770580921%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAw > MDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C= > C4dBybKwKVpfOPShClzy%2BeP0urLVchdbYjNJ726xmHM%3D=0> > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > From: andy pugh > Sent: Wednesday, May 08, 2024 4:18 AM > To: Enhanced Machine Controller (EMC) > > Cc: Todd Zuercher > Subject: Re: [Emc-users] Mb2hal 2.9? > > > [EXTERNAL EMAIL] Be sure links are safe. > > > On Wed, 8 May 2024 at 02:15, Todd Zuercher via Emc-users > mailto:emc-users@lists.sourceforge.net>> > wrote: > It was already set to 3. > > What is your MB2HAL load line? > What does lsusb call the dongle? > > Are the two PCs in question running the same version of Linux? > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is designed for > the especial use of mechanical geniuses, daredevils and lunatics." > - George Fitch, Atlanta Constitution Newspaper, 1912 > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://list/ > s.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C02%7Ctoddz% > 40pgrahamdunn.com%7Cf9247dc4415e4c243c9a08dc6f7b57d0%7C5758544c573f47c > ebee96c3e0806fb43%7C0%7C0%7C638507822770589530%7CUnknown%7CTWFpbGZsb3d > 8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C > 0%7C%7C%7C=SgEuARxP0MmsgoB3BljySPtlJKAxijEVAv8qQbwQYYU%3D > ed=0 Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mb2hal 2.9?
Thanks Gene, I'm not sure that, bug is completely relevant to my issue. As my Mb2hal config never used serial/by-id. It has always used /dev/ttyUSB0 to address the RS485 device. Maybe serial by id might be a better way to address the specific serial port used, but I am not even sure if it is even be supported by Mb2hal or exactly how to set it up that way (none of the example Mb2hal configurations use it.) And even if it were possible, I'm not sure if I still would have had the permission problems and I would have also had to fix the udev bug first. Changing the permission is all I needed to do to get this working as it was before. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: gene heskett Sent: Wednesday, May 08, 2024 12:23 PM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Mb2hal 2.9? [EXTERNAL EMAIL] Be sure links are safe. On 5/8/24 08:13, Todd Zuercher via Emc-users wrote: > No, they are not. The old pc was running Ubuntu 10.04. (Because that was > the last Linuxcnc distro that seemed work with this old pc and it's ISA IO > card.) The new PC is running Debian 12 (installed using an ordinary Debian > net install iso). > > The groups the user belongs to on the PC are "adm, dialout, cdrom, plugdev, > lpadmin, admin, and sambashare". The groups for the new PC are "cdrom, > floppy, sudo, audio, dip, video, plugdev, users, netdev, lpadmin, and scanner" > > So, I'm not sure, to my unskilled eye, it would seem that "dialout" might be > the most logical possible permission deficiency, but I'm not sure if "dip" > might be an equivalent replacement for that. > Your debian 12 install has the udev bug I sent you a link to the fix already. It restores the missing two lines that setup the serial/by-id stuff for usb. > Todd Zuercher > P. Graham Dunn > Inc.<https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2F > http://www.pgrahamdunn.com/%2Findex.php=05%7C02%7Ctoddz%40pgrahamdunn.com > %7Cf9247dc4415e4c243c9a08dc6f7b57d0%7C5758544c573f47cebee96c3e0806fb43 > %7C0%7C0%7C638507822770580921%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAw > MDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C= > C4dBybKwKVpfOPShClzy%2BeP0urLVchdbYjNJ726xmHM%3D=0> > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > From: andy pugh > Sent: Wednesday, May 08, 2024 4:18 AM > To: Enhanced Machine Controller (EMC) > > Cc: Todd Zuercher > Subject: Re: [Emc-users] Mb2hal 2.9? > > > [EXTERNAL EMAIL] Be sure links are safe. > > > On Wed, 8 May 2024 at 02:15, Todd Zuercher via Emc-users > mailto:emc-users@lists.sourceforge.net>> > wrote: > It was already set to 3. > > What is your MB2HAL load line? > What does lsusb call the dongle? > > Are the two PCs in question running the same version of Linux? > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is designed for > the especial use of mechanical geniuses, daredevils and lunatics." > - George Fitch, Atlanta Constitution Newspaper, 1912 > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://list/ > s.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C02%7Ctoddz% > 40pgrahamdunn.com%7Cf9247dc4415e4c243c9a08dc6f7b57d0%7C5758544c573f47c > ebee96c3e0806fb43%7C0%7C0%7C638507822770589530%7CUnknown%7CTWFpbGZsb3d > 8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C > 0%7C%7C%7C=SgEuARxP0MmsgoB3BljySPtlJKAxijEVAv8qQbwQYYU%3D > ed=0 Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mb2hal 2.9?
On 5/8/24 08:13, Todd Zuercher via Emc-users wrote: No, they are not. The old pc was running Ubuntu 10.04. (Because that was the last Linuxcnc distro that seemed work with this old pc and it’s ISA IO card.) The new PC is running Debian 12 (installed using an ordinary Debian net install iso). The groups the user belongs to on the PC are “adm, dialout, cdrom, plugdev, lpadmin, admin, and sambashare”. The groups for the new PC are “cdrom, floppy, sudo, audio, dip, video, plugdev, users, netdev, lpadmin, and scanner” So, I’m not sure, to my unskilled eye, it would seem that “dialout” might be the most logical possible permission deficiency, but I’m not sure if “dip” might be an equivalent replacement for that. Your debian 12 install has the udev bug I sent you a link to the fix already. It restores the missing two lines that setup the serial/by-id stuff for usb. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 From: andy pugh Sent: Wednesday, May 08, 2024 4:18 AM To: Enhanced Machine Controller (EMC) Cc: Todd Zuercher Subject: Re: [Emc-users] Mb2hal 2.9? [EXTERNAL EMAIL] Be sure links are safe. On Wed, 8 May 2024 at 02:15, Todd Zuercher via Emc-users mailto:emc-users@lists.sourceforge.net>> wrote: It was already set to 3. What is your MB2HAL load line? What does lsusb call the dongle? Are the two PCs in question running the same version of Linux? -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mb2hal 2.9?
Yes, it was a permission issue. After I added the user to the "dialout" group it worked fine. Thanks Peter for putting me on the right track. That might be something that should be added to the Mb2hal documentation. (If there isn't something about it already there.) Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: Todd Zuercher via Emc-users Sent: Wednesday, May 08, 2024 8:13 AM To: andy pugh ; Enhanced Machine Controller (EMC) Cc: Todd Zuercher Subject: Re: [Emc-users] Mb2hal 2.9? [EXTERNAL EMAIL] Be sure links are safe. No, they are not. The old pc was running Ubuntu 10.04. (Because that was the last Linuxcnc distro that seemed work with this old pc and it's ISA IO card.) The new PC is running Debian 12 (installed using an ordinary Debian net install iso). The groups the user belongs to on the old PC are "adm, dialout, cdrom, plugdev, lpadmin, admin, and sambashare". The groups for the new PC are "cdrom, floppy, sudo, audio, dip, video, plugdev, users, netdev, lpadmin, and scanner" So, I'm not sure, to my unskilled eye, it would seem that "dialout" might be the most logical possible permission deficiency, but I'm not sure if "dip" might be an equivalent replacement for that. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 From: andy pugh Sent: Wednesday, May 08, 2024 4:18 AM To: Enhanced Machine Controller (EMC) Cc: Todd Zuercher Subject: Re: [Emc-users] Mb2hal 2.9? [EXTERNAL EMAIL] Be sure links are safe. On Wed, 8 May 2024 at 02:15, Todd Zuercher via Emc-users mailto:emc-users@lists.sourceforge.net>> wrote: It was already set to 3. What is your MB2HAL load line? What does lsusb call the dongle? Are the two PCs in question running the same version of Linux? -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." - George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mb2hal 2.9?
No, they are not. The old pc was running Ubuntu 10.04. (Because that was the last Linuxcnc distro that seemed work with this old pc and it’s ISA IO card.) The new PC is running Debian 12 (installed using an ordinary Debian net install iso). The groups the user belongs to on the PC are “adm, dialout, cdrom, plugdev, lpadmin, admin, and sambashare”. The groups for the new PC are “cdrom, floppy, sudo, audio, dip, video, plugdev, users, netdev, lpadmin, and scanner” So, I’m not sure, to my unskilled eye, it would seem that “dialout” might be the most logical possible permission deficiency, but I’m not sure if “dip” might be an equivalent replacement for that. Todd Zuercher P. Graham Dunn Inc.<http://www.pgrahamdunn.com/index.php> 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 From: andy pugh Sent: Wednesday, May 08, 2024 4:18 AM To: Enhanced Machine Controller (EMC) Cc: Todd Zuercher Subject: Re: [Emc-users] Mb2hal 2.9? [EXTERNAL EMAIL] Be sure links are safe. On Wed, 8 May 2024 at 02:15, Todd Zuercher via Emc-users mailto:emc-users@lists.sourceforge.net>> wrote: It was already set to 3. What is your MB2HAL load line? What does lsusb call the dongle? Are the two PCs in question running the same version of Linux? -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
