Re: [Emc-users] OT: Cheap chinese servo motors

2020-09-13 Thread dave engvall
Has anyone scrolled down the iink to check the reducers? I'm not a stepper person but they might make a good start at a 4th axis. :-) Dave On 9/11/20 11:51 PM, andrew beck wrote: Leonardo. I'll pm you my supplier I use us cheaper and I have been testing there quality for 2 years on several

Re: [Emc-users] Mini-PC

2020-09-13 Thread Dave Matthews
I have a neighbor that will use 100gb a month > > > > > using my bandwidth instead of his with his smartphone. So all my > > > networking is hard wired. > Block his mac addresses? Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Setting up two home switches on Y

2020-09-11 Thread Dave Matthews
On Fri, Sep 11, 2020 at 5:16 PM andy pugh wrote: > > On Fri, 11 Sep 2020 at 21:18, Dave Matthews wrote: > > > The examples that I have found are for Mesa cards and seem to have a > > lot of stuff in them that I don't have in my .ini and .hal files. > > Have you look

[Emc-users] Setting up two home switches on Y

2020-09-11 Thread Dave Matthews
on where I can find the docs on editing the ini and hal files to add the second Y home switch and having 4 joint homing? I have a hard time finding anything in the docs. Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https

Re: [Emc-users] cnc axis "Touch Off"

2020-09-11 Thread dave engvall
to the CAM. My brain is pretty well fried but I think a bit of matrix algebra would do this for you. Dave On 9/11/20 6:43 AM, R C wrote: Hello Andy, That is interesting, I should learn more about these coordinate systems.  From a math/geometry perspective  there nothing that could keep you from

Re: [Emc-users] cnc axis "Touch Off"

2020-09-10 Thread Dave Matthews
That is how I do it. There are three radio buttons, one for each axis. It defaults to the last axis moved which is usually z. Dave On Thu, Sep 10, 2020, 19:01 R C wrote: > I was just playing with it a bit, > > > I have the idea, that , like homing is done per axis, "touchi

Re: [Emc-users] LinuxCNC 2.8.0 is released

2020-09-09 Thread Dave Matthews
Thank you for all the work that went into this. I am a retired programmer and project manager. That many people working on that much code is a huge achievement. Dave On Tue, Sep 8, 2020 at 7:31 PM andy pugh wrote: > > I am pleased (and a little relieved) to announce the release of Li

Re: [Emc-users] LinuxCNC legacy or future

2020-09-09 Thread dave engvall
A most impressive list of worker bees. However, the english analogy fails when referring to Andy. I just can't refer to him as Queen bee or Drone. There must be a better word to describe herding programmers. ;-) Great work everyone. Will upgrade as soon as I can get the rpi sorted. Dave On 9

Re: [Emc-users] LinuxCNC 2.8.0 is released

2020-09-09 Thread Dave Cole
Awesome!   Thanks Andy and everyone who contributed! ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Mini-PC

2020-09-08 Thread Dave Matthews
F as having very good jitter numbers. Those are an i5 that takes a $5 cable to add the parallel port. Usually about $150 US on Amazon. $155 today - https://www.amazon.com/HP-8300-Elite-Computer-Quad-Core/dp/B01CV9G1BO/ref=sr_1_1?dchild=1=hp+8300+sff=1599583671=8-1 Dave

Re: [Emc-users] Mini-PC

2020-09-08 Thread Dave Matthews
taller to bypass network stuff? It seems like it wasn't totally obvious how to get the install to work on the text based installer. Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Gecko 203v

2020-08-28 Thread Dave Pape
I had a noise problem with the 203v. I solved the problem by re tapping the 4-40 ground screw in the center of the Gecko's black heat sink. The heat sink is anodized making it non electrically conductive. My 4 Gecko's are all mounted on one common heat sink, and after making everything grounded

Re: [Emc-users] OT: Synchronised motion using RS485/CAN bus motors

2020-08-20 Thread dave engvall
easy way to to subtract 10 add three. People are different in their approach to problem solving and that is what make them so 'interesting'. :-) Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforg

Re: [Emc-users] OT: Synchronised motion using RS485/CAN bus motors

2020-08-19 Thread dave engvall
Ah, John, In the words of way too many math professors, "It is obvious that ." . On 8/19/20 7:12 PM, John Dammeyer wrote: My computer science degree required 4 terms of calculus, 2 terms of linear algebra, 2 terms of differential equations, 4 terms of physics and 2 terms of statistics. I

Re: [Emc-users] p-port problems?

2020-08-11 Thread dave engvall
filenames for .bit files for 6 or more encoders and 6 channels of output. Some of the error messages seem to indicate I have a 400K chip but filenames for both small and large would help since I seem to be stumbling around in the darkness. TIA. Dave

[Emc-users] p-port problems?

2020-08-10 Thread dave engvall
Hi, Fussing with a pci pport card; 8875F based connected to a 7i43. With 50 pin connectors to the left led's are  Y R R I  don't seem to get better at this as I age. :-( Any help will be greatly appreciated! Thanks in advance. Dave LINUXCNC - 2.7.15 Machine configuration directory

Re: [Emc-users] Error Message

2020-08-04 Thread Dave Matthews
at all. Magic gremilins? Dave On Tue, Aug 4, 2020 at 1:09 PM andy pugh wrote: > > On Tue, 4 Aug 2020 at 17:21, Dave Matthews wrote: > > > > Let's see if it will take the attachment. What would I be looking for > > in the gcode? > > /0 > TAN[90] > > But it l

Re: [Emc-users] Error Message

2020-08-04 Thread Dave Matthews
Let's see if it will take the attachment. What would I be looking for in the gcode? Dave On Tue, Aug 4, 2020 at 12:12 PM andy pugh wrote: > > On Tue, 4 Aug 2020 at 16:36, Dave Matthews wrote: > > > Tried to set invalid pose in tpAddCurrentPos on id 1347!disp is nan

[Emc-users] Error Message

2020-08-04 Thread Dave Matthews
as to where to start looking or is this something to just ignore? Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] smoother mover motion

2020-07-25 Thread dave engvall
Hi, TinyG is supposed to have S curve accel and limited jerk. It might be worth looking at for approach. Should be easy since it is pretty much linuxcnc but embedded. Just a comment following up on an earlier post; maybe a week ago or so. Just poking the bear. :-) Dave

Re: [Emc-users] Machmaker USB -> Parallel

2020-07-23 Thread Dave Matthews
ight now it is all running with a $20 BOB and an old HP desktop with a PCI parallel port card that is older than the PC. Dave > Peter Wallace > Mesa Electronics > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourcef

Re: [Emc-users] Machmaker USB -> Parallel

2020-07-23 Thread Dave Matthews
asn't cheaper and it's sitting in a box. > > John > > For my purposes I don't need two ports or the ability to read an encoder. One port is enough. I am driving four steppers and reading a few home switches. This guy is claiming 150 kHz so way faster than I need for 3200 microsteps pe

Re: [Emc-users] Machmaker USB -> Parallel

2020-07-23 Thread Dave Matthews
rhaps this is what the guys in Poland did then they are selling a $2 > chip burried in a $10 cable for $100 each? It could work. > Most likely what they have done. I suspect that a Mach 3 UC-100 is done that way too. Dave ___ Emc-user

Re: [Emc-users] Machmaker USB -> Parallel

2020-07-23 Thread Dave Matthews
That is what the video is. It is being used as an interface from a Raspberry Pi 4 running LinuxCNC. From the info on the website it is LinuxCNC only. Dave On Thu, Jul 23, 2020 at 2:17 PM John wrote: > > Does it even work with LinuxCNC? > > Sent from John's iPhone 4S > > On

Re: [Emc-users] Machmaker USB -> Parallel

2020-07-23 Thread Dave Matthews
to edit on my setup is not clear. Stopconf works great but after that it gets real murky real fast. Dave On Thu, Jul 23, 2020 at 12:52 PM John Dammeyer wrote: > > This might have been mentioned on the MACH CNC group but the reality is that > if you want LinuxCNC and two parallel ports

[Emc-users] Machmaker USB -> Parallel

2020-07-23 Thread Dave Matthews
://machmaker.pl/index.php?p=1_13 VIdeo - https://www.youtube.com/watch?v=txivr8j86t8=youtu.be=IwAR04UYfSGbRucny1aek0HVgJGrBkG0FiaxosNx_DQiKoZXNBPOXl1Raue3A Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net

Re: [Emc-users] Calculating table acceleration. Was: Need help with Bostomatic BD18-2 to linuxcnc

2020-07-23 Thread dave engvall
build the interstate hwy system. If we had converted to Km and liters at that time we might be metric by now. Any manufacturing that competes internationally converted long ago. The military converted long ago but in the '60's the grid was metric but the heights were still in feet.    Dave

Re: [Emc-users] wondering what the status is on S curve jerk control getting added into linuxcnc

2020-07-23 Thread dave engvall
and author's name was something like Silvia M(a)cFarland. On the one axis motion controller what cycle time were you using and did faster cycle times smooth it any? Dave On 7/22/20 1:51 PM, andrew beck wrote: hey guys I have a relatively high speed machine (3kw motors 16mm pitch ballscrews) 35mm

Re: [Emc-users] off topic: pwm with a stepper driver/motor

2020-07-13 Thread Dave Matthews
the need for a computer to run a stepper at a constant speed. Dave On Mon, Jul 13, 2020, 22:46 R C wrote: > well, I can calculate what the speed needs to be, also I can actually > "observe" it too.. by pointing the telescope at a star and see how > much the deviation

Re: [Emc-users] SSD reliability

2020-07-04 Thread Dave Cole
of them and have installed a number of them and none of them have died. The Samsung SSDs are crazy reliable. Dave On 7/3/2020 2:39 PM, Ted wrote: I'm quite partial to traditional 2.5" SATA SSD's; I have about 30 servers with SAS/SATA slots running either Kingston or Sandisk 3Gb/s SSD's in

Re: [Emc-users] fitting chuck to backplate on a BS-1 clone

2020-07-01 Thread dave engvall
Measure from an arbitrary center to perimeter and calculate from three points. Adjust and remeasure. On 7/1/20 9:08 AM, Gene Heskett wrote: Greetings all; I had to drill a pin hole and drive this backplate with a dead blow hammer to get it locked to this BS-1 well enough to machine a register

Re: [Emc-users] q for Chris on 5mm cal routine

2020-06-17 Thread Dave Matthews
-10s at one time. The grub screws on the filament feed gear were slipping on the shaft. I ended up getting some gears with two screws and that took care of the problem. Check to see if the filament feed gear is slipping. I am guessing the Ender and CR-10 used the same design and parts. Dave _

Re: [Emc-users] Health update

2020-06-10 Thread dave engvall
On 6/10/20 12:47 PM, Gene Heskett wrote: Gene, Take care and be careful. Can't say much more as you probably won't listen anyway. ;-) Be glad you live in a time when cardiac care is pretty well understood. Else you'd be long gone. Dave On Wednesday 10 June 2020 15:17:19 Chris Albertson

Re: [Emc-users] pix too big, rejected, so Chris is only other receiver.

2020-06-05 Thread Dave Matthews
tower to figure out your filament. Printing real parts before you get the numbers figured out is a waste of time. When I got done with it I found that I could do most things by taking the Cura defaults and setting bed temp to 60 and filament in the 190-200 region. Dave _

Re: [Emc-users] missing feature of openscad

2020-06-02 Thread Dave Matthews
re repeatable. > I found that cleaning the glass with alcohol and then giving it a spray of aquanet hairspray helped adhesion a lot. I usually had to let the glass cool completely to get the parts off. Dave > ___ Emc-users mailing list Emc-users@li

Re: [Emc-users] missing feature of openscad

2020-06-02 Thread Dave Matthews
est for that source code from ever > being replied to. Been there, done that too many times already. > When I go to the Cura downloads page it lists - Ultimaker Cura 4.6.1 Linux, 64 bit https://ultimaker.com/software/ultimaker-cura Dave ___ Em

Re: [Emc-users] Face Milling

2020-05-21 Thread dave engvall
Round inserts are nice if you have the power and stiffness to use them. Only in desperation would I use a fly cutter simple because of the unbalanced load. Because of their radius the round inserts will give a nice finish. Have fun. Dave On 5/20/20 9:56 PM, John Dammeyer wrote: I've been

Re: [Emc-users] internal cleaning a BS-1

2020-05-18 Thread dave engvall
  even for lighter motors. Not worth  messing up the body getting something in place. Stay safe. Dave On 5/17/20 9:31 AM, Gene Heskett wrote: Greetings all; It looks like I am going to have to dis this $600 piece of junk and take it to the car wash to clean out the manufacturing debris. Which

[Emc-users] OT Chinese DRO

2020-05-08 Thread dave engvall
s. Once I get both types of scales going I  will do a comparison against each other and against Jo blocks and boring machine standards. Has anyone else tried these and how did you make it work? As always thanks in advance. Dave ___ Emc-users ma

Re: [Emc-users] need a couple boring bar holders, odd size

2020-05-03 Thread dave engvall
taper for a 5C. The collet just hangs out the rear of the block and I can clamp up boring bars of varying size using a bronze nut threaded for the rear thread of the collet, Naturally I ended up making a wrench to  fit the nut. Nothing is ever easy. :-)  YMMV Dave On 5/3/20 10:57 AM, Gene He

Re: [Emc-users] Machine accuracy

2020-05-03 Thread dave engvall
to be much less than the backlash so backlash and lack of rigidity are probably major contributing factors to off tolerance. Just thinking out loud. Sorry for the length of post but ... Have fun and stay safe. Dave ___ Emc-users mailing list

Re: [Emc-users] Encoder reset on homing to index

2020-04-26 Thread dave engvall
thinking(?) out loud. On my machine, a well worn BP size, using I has never given me better following error. I get by with P, FF1, FF2, zero or very small D and no I. just my tuppence! Dave On 4/25/20 10:56 PM, David Berndt wrote: The rotary loop works fine by itself. The linear loop, as it's

Re: [Emc-users] cloning hard drive to new SSD

2020-04-23 Thread Dave Cole
and restore it onto the other drive in two different sessions.   That way you can also keep a backup of the image on another drive. Dave On 4/22/2020 10:22 PM, andrew beck wrote: Hey guys. Just a quick question here I recently heard some funny clanking noises in my old 2nd hand hard drive on my VMC

Re: [Emc-users] linuxcnc on modern hardware

2020-04-19 Thread Dave Matthews
It was free from when we cleaned out the FIL's place. The one before that was in the heap of rubble of retired computers. No reason to buy new to run a router. Dave On Sun, Apr 19, 2020 at 2:08 PM N wrote: > > > Hi, > > For reasons I dont understand, many people prefer to use e

Re: [Emc-users] Non-circular boring. Linuxcnc style.

2020-04-14 Thread dave engvall
I was just going to comment that if you have to circular mill then the initial use of a drill might be faster and safer. Dave On 4/14/20 4:03 PM, John Dammeyer wrote: So if I don't have a center cutting end mill then it's probably a good idea to drill a hole so that the overlap criteria can

Re: [Emc-users] Non-circular boring. Linuxcnc style.

2020-04-14 Thread dave engvall
IIRC a full dia plunge with a non-center cutting end mill is an experiment in friction welding. ;-) Dave On 4/14/20 11:31 AM, andy pugh wrote: On Tue, 14 Apr 2020 at 19:26, John Dammeyer wrote: And I don't think one should plunge into HRS with a 4 flute mill. Was it a centre-cutting mill

Re: [Emc-users] Non-circular boring. Linuxcnc style.

2020-04-14 Thread dave engvall
onal again and that will be a game changer. Dave On 4/14/20 10:55 AM, Sam Sokolik wrote: we have various forms of these type calculators that seem to work well https://www.ebay.com/itm/Vintage-Valenite-SPEED-AND-FEED-CALCULATOR-1981-Datailzer-Slide-Charts/164146745960?hash=item2637e89268:g:V~oAAOSwIGleb93M On T

[Emc-users] Easy to heat treat high speed tool steel

2020-04-11 Thread Dave Pape
Have a look at Uddeholm Vanadis 4 Extra SuperClean. Uddeholm has more types of tool steel to choose from. This is from Uddeholm PDF. Pre-heating temperature: First pre-heating at600–650°C (1110–1200°F) and second at 850–900°C (1560–1650°F)Austenitizing temperature: 940–1180°C (1725–2160°F),

Re: [Emc-users] Home use index problem (In step + dir mode)

2020-04-10 Thread dave engvall
it jsut touches the tab on the limit switch. Dave Is it talking about using the step mode in velocity to drive the servo in velocity mode? Because I'm using it in velocity mode but just as suggested to close the loop internally and gain more accuracy at the output. Not closing the loop with the

Re: [Emc-users] Gecko Failure

2020-04-06 Thread Dave Cole
I agree, however I wonder how long you have to wait until the Phoenix connector rises again???  ;-) And perhaps it needs to be further burnt to complete "ashes" ?? Perhaps a call to the Phoenix connector support hotline is in order? ;-) Dave On 4/6/2020 9:58 AM, andy pugh wrot

Re: [Emc-users] Gecko Failure

2020-04-06 Thread Dave Cole
I'd contact Geckodrive and send them that picture. Dave On 4/6/2020 12:24 AM, John Dammeyer wrote: Anyone ever run into this sort of thing with a G213V driver? http://www.autoartisans.com/mill/G213V-Failure.jpg It was running the Knee with a 1200 oz-in motor and 60VDC power supply. John

[Emc-users] spi connections

2020-03-28 Thread dave engvall
they are very good have an impedance bump anyway. This would be cleaner with a rt angle 26 pin but they were weeks out. ;-) Maybe Peter will chime in here. :-) Dave ps. if one gets a 929852-01-10 then you can split it into the 40 pin and the 26 pin. Don't ask me how I know

Re: [Emc-users] Had to share

2020-03-28 Thread dave engvall
and after the Korean 'war'  Spam saved a lot of Koreans from starvation. The US Army kitchens were throwing it in the dumpsters so it got scavengedby locals. Spam with kimchi anyone? Dave On 3/27/20 2:45 PM, Marcus Bowman wrote: Spam, spam, double-spam, egg, spam, spam and spam. Loved the video

Re: [Emc-users] linuxcnc openlung ventilators

2020-03-24 Thread Dave Cole
tml Dave On 3/24/2020 11:02 AM, dave engvall wrote: Implications? Gleaned from a medical  site. "Coronavirus is enveloped, meaning the virus has coating on the outside of it. As it happens, the envelope means that the virus doesn’t survive well outside of the body—they usually can’t last

Re: [Emc-users] linuxcnc openlung ventilators

2020-03-24 Thread dave engvall
infection was a loss of smell. Interesting but single  source. Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Question about index pulse on high resolution encoder

2020-03-22 Thread dave engvall
just checked the price on ebay. ouch! glad I don't do anything that really need one. On the other hand that $800 only buys about 1.5 glass scales. Dave On 3/22/20 3:20 PM, andy pugh wrote: On Sun, 22 Mar 2020 at 22:01, Gene Heskett wrote: That is an impressive widget. :-) So

Re: [Emc-users] Question about index pulse on high resolution encoder

2020-03-22 Thread dave engvall
That is an impressive widget. :-) On 3/22/20 12:08 PM, andy pugh wrote: On Sun, 22 Mar 2020 at 18:27, dave engvall wrote: I bought one of these a few years ago when they were somewhat less expensive. The polarizer helps the beam considerably. I think one can get something on the order

Re: [Emc-users] Question about index pulse on high resolution encoder

2020-03-22 Thread dave engvall
a pin hole should do better. There just ain't no free lunch. Dave On 3/22/20 11:09 AM, Gene Heskett wrote: On Sunday 22 March 2020 12:57:34 Leonardo Marsaglia wrote: You would have to turn the coolant off to measure, but have a look at laser triangulation distance sensors: https://www.

[Emc-users] connector ignoramus

2020-03-18 Thread dave engvall
worse is that a person can pass it on before they have symptoms. https://informationisbeautiful.net/visualizations/covid-19-coronavirus-infographic-datapack/?fbclid=IwAR0CAPMO2oHOLZyB07vBhdbLvAjUcQ6RiifnOZJDt6sdMrSV1MWL-2Y0bv8 Hang tough, be careful. Dave

Re: [Emc-users] back to my out of whack encoder

2020-02-24 Thread dave engvall
then it can take a decent hit to break them loose. BTW - I've had pretty good luck with lacquer thinner as a degreaser.  Brownells recommends gasoline as a degreaser for their bluing kits. Hope this helps. Hang in there.  as always YMMV. Advice is always worth about what you pay for it. ;-) Dave

Re: [Emc-users] Kinematics, headless CNC

2020-02-22 Thread dave engvall
hi Nicklas: I think you keep the X as linear and do a Cartesian to polar conversion for the Y. This is sometimes done to get a really stiff Y axis. Years ago I saw a utube of a shop doing one with a decently large rotary table; as in 18" or more. Dave On 2/22/20 12:50 AM, Nicklas Kar

Re: [Emc-users] Feeds and speeds

2020-02-19 Thread dave engvall
, finishes for wood, etc. Dave On 2/19/20 11:59 AM, Gene Heskett wrote: On Wednesday 19 February 2020 14:29:42 dave engvall wrote: Lots of illocut products on web... which one do you recommend? Indeed kerosene works well for threading Al and cutting. Probably less flammable also but being

Re: [Emc-users] Feeds and speeds

2020-02-19 Thread dave engvall
Lots of illocut products on web... which one do you recommend? Indeed kerosene works well for threading Al and cutting. Probably less flammable also but being lazy I didn't check the flashpoints. Dave On 2/19/20 11:05 AM, Marshland Engineering wrote: Ilocut is far superior to WD40. If I

Re: [Emc-users] Open source CNC architecture --> printer driver postscript <-> g-code

2020-02-19 Thread dave engvall
postscript isn't a bad language for 2D. ... and yes years ago I did exactly that. Dave On 2/19/20 7:52 AM, andy pugh wrote: On Sat, 15 Feb 2020, 19:41 N, wrote: Printers talk postscript while CNC machines talk g-code, well not always but quite often. And just as some folk hand-write G

Re: [Emc-users] Feeds and speeds

2020-02-19 Thread dave engvall
Indeed WD-40 seems to work well for Al. I have some Al that is plain touchy. Creates heat very quickly and then I get adhesion. 6061-T6 seems to be OK. Dave On 2/19/20 4:32 AM, Stuart Stevenson wrote: For aluminum I like WD-40. On Wed, Feb 19, 2020 at 3:41 AM Marshland Engineering < mar

Re: [Emc-users] RPI4 is pretty close to a decent machine - now linear scales and servos

2020-02-19 Thread dave engvall
On 2/19/20 4:16 AM, Les Newell wrote: On 18/02/2020 23:54, Marshland Engineering wrote: Just a correction, I have setup a few stepper systems with LinuxCNC and step and direction is no problem. The problems came in when using 2KW servo drives and linear scales on the axis. The subject of

Re: [Emc-users] Feeds and speeds

2020-02-18 Thread dave engvall
I'll give more serious stuff a go. I do a lot of A36 because it is cheap and OK for experimental work but CR machines like a dream by comparison. HTH Dave On 2/18/20 10:09 PM, John Dammeyer wrote: Thanks everyone. The trouble with the machinist workshop program and some of the others

Re: [Emc-users] preempt-rt on the pi4b

2020-02-18 Thread Dave Matthews
the trick. I grabbed linuxcnc-uspace_2.9.0~pre0_armhf.deb while I was there. Guessing that is what I want to install when I have time to play with this. Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] preempt-rt on the pi4b

2020-02-18 Thread Dave Matthews
t; in /, reboot, and it should show a uname -a of: > Linux rpi4.coyote.den 4.19.71-rt24-v7l+ #1 SMP PREEMPT RT Thu Feb 6 > 07:09:18 EST 2020 armv7l GNU/Linux > Not finding it on the url in your sig. The word lathe appears on the page twice. There is a link near them

Re: [Emc-users] RPI4 is pretty close to a decent machine control

2020-02-18 Thread dave engvall
I do best at ideas and let the really smart people do the rest. Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users ma

Re: [Emc-users] [Emc-developers] Looking to make hex offset list for NML status shared memoryr

2020-02-17 Thread Dave Matthews
lug into the BOB or the new $50 Sainsmart BOB/motion controller board and plug into a USB port. That is pretty much the standard set up for Gatton CNC builders. Dave > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sour

[Emc-users] just call me grumpy! (7i43)

2020-02-15 Thread dave engvall
. A thumbs up/thumbs down would be helpful. This was supposed to be a temp fix while I picked up the radiator cap and ran something else underneath. Comments, incantations welcome. Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https

Re: [Emc-users] trying to connect a encoder from cnc spindle motor to schiender vfd

2020-02-15 Thread dave engvall
isolated, with op-amp bias supplied to one end of the coils, so you get sin plus and minus and cosine + and - I don’t think we are talking about coils here. I was Andy, see the link Dave Engval posted to a pdf from a maker of such that described sin/cos encoders well. I've never used one

Re: [Emc-users] Open source CNC architecture

2020-02-14 Thread dave engvall
on a rather expensive VME bus system but things got cheaper when STG (Servo to Go ( only $888 )) offered an isa bus card. Nuff blithering: back to getting something done. ;-) Dave On 2/14/20 12:59 AM, John Dammeyer wrote: -Original Message- From: Chris Albertson [mailto:albertson.ch

Re: [Emc-users] trying to connect a encoder from cnc spindle motor to schiender vfd

2020-02-14 Thread dave engvall
a bit overdone for your app but this should give you an idea. page down to fig 16. https://www.st.com/content/ccc/resource/technical/document/application_note/group0/6a/82/83/37/61/69/4e/74/DM00497286/files/DM00497286.pdf/jcr:content/translations/en.DM00497286.pdf Dave On 2/13/20 11:01 PM

Re: [Emc-users] question about glue

2020-02-12 Thread dave engvall
Devcon was pretty much the first entry into small tubes of 2 part epoxy. Dave On 2/12/20 11:52 AM, David Berndt wrote: Not directly glue advise. But gear tooth sensor advise. Don't let the heads of those things rip off and go through my gear head mill's bevel gear teeth. Not pretty. No teeth

Re: [Emc-users] trying to connect a encoder from cnc spindle motor to schiender vfd

2020-02-12 Thread dave engvall
Check the max frequency on any encoder you look at. The inexpensive ones max out at 200 K. Frequency is not a problem is you want to throw $$ at it. It is very hard to win; lots of counts at the high end but not many when you are creeping. There just ain't no free lunch. Dave On 2/11/20 10

Re: [Emc-users] trying to connect a encoder from cnc spindle motor to schiender vfd

2020-02-12 Thread dave engvall
http://pico-systems.com/osc2.5/catalog/product_info.php?products_id=31=2n4hbnn63oqt9ncdlervb08tv6 On 2/12/20 1:52 AM, Gene Heskett wrote: On Wednesday 12 February 2020 01:49:34 andrew beck wrote: the option I just thought of while googling is, can I convert the sin cos format in to a normal

Re: [Emc-users] question about glue

2020-02-11 Thread dave engvall
primer, insert fastener. Who know what grade of acetone they use ... probably analytical grade. ;-) Or the really fancy stuff for  pesticide residue analysis. Please understand...if I'm not careful I can learn something everyday. Dave On 2/11/20 4:38 PM, Bruce Layne wrote: On Tue, Feb 11

Re: [Emc-users] Open source CNC architecture

2020-02-11 Thread dave engvall
her non-motion stuff around it. Of course it is single source, etc. Dave On 2/11/20 12:05 PM, Chris Albertson wrote: You care where the loop are because if they are in your PC you need a special PC with a special OS. But look at how most 3D printers work. They are just like 4 axis milling machine

Re: [Emc-users] question about glue

2020-02-11 Thread dave engvall
AFIK Araldite is a non-filled epoxy. I've always taken that as the Brit name for plain epoxy.  OTOH JB also make a clear 5 min expoy as do others. I grew up with a  quart of (Shell at the tme) Epon828 in the cupboard. Handy stuff. I once mixed an epoxy using tri-mellitc  (sp??) anhydride  as a

Re: [Emc-users] question about glue

2020-02-11 Thread dave engvall
Yep! As long as your environment doesn't  have chlorinated solvents you are OK. Even my Ace Hdwe carries it. Dave On 2/11/20 10:34 AM, Chris Albertson wrote: "JB Weld" Epoxy. It is a mixture of two part epoxy and steel powder. Get it at any auto parts store or Home Depot. On T

[Emc-users] rpi4b for servos

2020-02-10 Thread dave engvall
will use the spi so as to leave the ethernet available for downloading updates, programs, etc. I look forward to everyone's creative thinking TIA Dave 4th channel allows for an encoder and glass scale on one axis. :-) ___ Emc-users mailing list Emc

Re: [Emc-users] Probing a Profile

2020-02-04 Thread dave engvall
Been so long I don't remember. I was done on the Mazak so it has been a few years. I probably wrote something rather simple. Maybe even so simplistic and manual. ;-) Dave On 2/4/20 9:31 AM, andy pugh wrote: On Tue, 4 Feb 2020 at 16:22, dave engvall wrote: I've done it the hard way

Re: [Emc-users] Open source CNC architecture

2020-02-04 Thread dave engvall
emc was short and nice. Linuxcnc is certainly more descriptive. Dave On 2/4/20 7:17 AM, Stuart Stevenson wrote: EMC was purchased in 2016 by Dell. They no longer use the EMC(squared) logo as of 2016. All of the legal effort about the logo was probably done to help in the effort to sell

Re: [Emc-users] Probing a Profile

2020-02-04 Thread dave engvall
ways to do this. What I can visualize in concept I cannot convert to good calculations. ;-)  I passed calculus but knew better than to try dif-e-q. A second order curve fit tangent to multiple circles might be a better approach. "Implementation is left as an exercise for the student." 

Re: [Emc-users] install problems --> other hardware problem over heat, OT?

2020-02-01 Thread dave engvall
an identical board I can sub. Dave On 2/1/20 4:40 AM, Nicklas Karlsson wrote: Had problem with HP server, it sometimes turned off, I could hear the fan speed increase then it worked so for some reason I decided to remove cooling fin, clearad ir, added new paste. Then it worked much better, could hear

Re: [Emc-users] install problems

2020-01-31 Thread dave engvall
Certainly an idea to check out. Never occurred to me but the I suppose Intel  could be victim of that kinda of fraud as easily as other vendors. It is on tomorrows list of things to do. Tnx Dave On 1/31/20 7:16 PM, Gregg Eshelman via Emc-users wrote: Have you checked the board for leaking

[Emc-users] install problems

2020-01-31 Thread dave engvall
and got some error message. Does anything except axis run under stretch? How do i get the whole tree to display on startup? TIA Dave p.s. I try to run as long as possible on one configuration. I'm into making chips not experimenting with systems

Re: [Emc-users] Open source CNC architecture

2020-01-27 Thread dave engvall
don't think one hands codes NURBS ... ;-)  However that might take care of some of the lookahead problems. Just dreaming. Ha! ..Back to resurrecting my Mazak. Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https

Re: [Emc-users] Real-time OS for machine controllers

2020-01-25 Thread Dave Matthews
No. Commercial software. On Sat, Jan 25, 2020, 22:41 Stuart Stevenson wrote: > Is Mach 3/4 open source? > > > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] homing

2020-01-21 Thread dave engvall
a charm. For  Z I adjust manually to a given point and just kick it off.  It probably doesn't make much difference anyway since one always touches off to the top of the work. Just have to make certain I have enough distance between z max and work plane to back off. :-) Dave ps. the diode spot

Re: [Emc-users] 2.7.15 released!

2020-01-05 Thread Dave Matthews
Wouldn't something like sudo apt-get upgrade linuxcnc-uspace restrict the upgrade to just LinuxCNC? Dave On Mon, Jan 6, 2020, 00:04 John Dammeyer wrote: > > On 2020-01-05 18:43, John Dammeyer wrote: > > > My system boots and tells me it's 2.7.14. If I unplug the M

Re: [Emc-users] How do I get 2.8 installed?

2019-12-30 Thread Dave Matthews
drop a card in and see if I can get it better but that is probably more than adequate for my Gatton CNC on a parallel port. I am running it at 3200 microsteps/inch and don't need over 100 ipm for my purposes. Dave On Sun, Dec 29, 2019 at 9:32 PM Phillip Carter wrote: > > I am not sur

Re: [Emc-users] How do I get 2.8 installed?

2019-12-29 Thread Dave Matthews
I'll give it a try in the morning. That page could use a bit of updating. I found a few other options to try also. Any idea when 2.8 will be the default install? It looks like it has been stable for quite a while. Dave On Sun, Dec 29, 2019, 21:11 Phillip Carter wrote: > I think it

Re: [Emc-users] How do I get 2.8 installed?

2019-12-29 Thread Dave Matthews
er package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'linuxcnc' has no installation candidate Anyplace I can just grab an iso and install it or the correct entries for /etc/apt/sources.list. or do I need to grab the

[Emc-users] How do I get 2.8 installed?

2019-12-29 Thread Dave Matthews
positories and using apt-get. Any hints please? Dave ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Update: Re: linuxcnc versions

2019-12-19 Thread Dave Matthews
The GUI installer has problems with my wifi dongle. The dongle works fine with after install. The problem is that you can't bypass the network with the GUI installer. Dave On Thu, Dec 19, 2019, 22:41 R C wrote: > also, on that Stretch installation. if you try to install on anyting >

Re: [Emc-users] Update: Re: linuxcnc versions

2019-12-19 Thread Dave Matthews
Odd, Stepconf ran fineon the one I did. Dave On Thu, Dec 19, 2019, 21:54 R C wrote: > because a bunch of people were recommending it. > > Also, I managed to install "LinuxCNC Uspace 2.7.0 Debian 9 Stretch" > <http://www.linuxcnc.org/testing-stretch-rtpreempt/> >

Re: [Emc-users] Update: Re: linuxcnc versions

2019-12-19 Thread Dave Matthews
uxcnc.org/downloads/) <http://www.linuxcnc.org/downloads/> > > > I > Why are you trying to install Wheezy instead of Stretch? It looks like it is barfing on trying to find Wheezy updates on repos that have been turned off. I used the Str

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