Re: [Emc-users] who has used thin client pcs

These aren't really thin, but they are pretty nice. They are fanless and use the case as a heat sink. Made in China. Qotom Computers <https://www.amazon.com/QOTOM-celeron-Processor-Fanless-pfSense/dp/B01CSCGD58?th=1> Kenneth Lerman 55 Main Street Newtown, CT 06470 On Wed, Feb 9, 2022 a

Re: [Emc-users] Execute MDI command, from hal pin

I've implemented some safe probing routines here <https://drive.google.com/file/d/1D7_BacRTk4LwG0izKLDASTxHSK0RL5nM/view?usp=sharing>. They are examples of subroutines that might be called by external switches -- or in my case from buttons on a pendant. Ken Kenneth Lerman 55 Main Street N

Re: [Emc-users] Execute MDI command, from hal pin

+X, -X, +Y, -Y, etc. Those subroutines might save the direction of the last jog. You could also have a subroutine to use your touch probe. It could be "smart enough" to probe in the direction of the last jog. Ken Kenneth Lerman 55 Main Street Newtown, CT 06470 On Sat, Feb 5,

Re: [Emc-users] What Would You Suggest?

a mode. Select a stepover. Hit go. Martin pointed me at the teensy computers. They have a 3.2 inch touch screen that might be just the thing to control this. The stepper library should do the job very nicely. Ken Kenneth Lerman 55 Main Street Newtown, CT 06470 On Fri, Feb 4, 2022 at 3:22 PM

Re: [Emc-users] What Would You Suggest?

I don't think I'm ready for yet another hobby (3-D printing), so I think I'll just put an oversized motor and pulley. Gene -- What stepper family are you using for the lathe? (A link, please.) Regards, Ken Kenneth Lerman 55 Main Street Newtown, CT 06470 On Fri, Feb 4, 2022 at 12:25 PM gene

Re: [Emc-users] What Would You Suggest?

only 1200 steps per second. An alternative would be to provide more gearing, but I don't think it's practical to get more than about a six to one ratio in a single belt reduction and I'd like to avoid mechanical complexity if I can. Thoughts? Ken Kenneth Lerman 55 Main Street Newtown, CT 06470

[Emc-users] What Would You Suggest?

drivers, ..., it's too late to be really cost effective.). And the surface grinder only cost me $300. Thanks, Ken Kenneth Lerman 55 Main Street Newtown, CT 06470 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net

Re: [Emc-users] Choice of CNC conversions

Hi Gene, Don't give up your only ethernet port. Instead, add one with a $10 USB dongle. Regards, Ken Kenneth Lerman 55 Main Street Newtown, CT 06470 On Mon, Dec 27, 2021 at 4:37 PM gene heskett wrote: > On Sunday, December 26, 2021 1:30:42 PM EST John Dammeyer wrote: > > Hi Mark,

Re: [Emc-users] Probing

(I bent my first probe using Verser's routines.) The probing routines know about the direction of the last motion directed by the pendant, so they probe in that direction. See: safe probe source <https://drive.google.com/file/d/1D7_BacRTk4LwG0izKLDASTxHSK0RL5nM/view?usp=sharing> Ken Kennet

Re: [Emc-users] Maybe a minimally printed harmonic drive?

Has anyone tried using polypropylene for the flex component? I believe PP is used for live hinges. Ken Kenneth Lerman 55 Main Street Newtown, CT 06470 On Fri, Apr 30, 2021 at 11:26 PM wrote: > I haven't been following your project recently but am intrigued by "And it > turns t

Re: [Emc-users] (Off topic) A Question Re: BOBs and Opto-Isolators

They are actually rated from zero Hz (DC) to 100MHz. Ken Kenneth Lerman 55 Main Street Newtown, CT 06470 On Mon, Oct 14, 2019 at 5:27 AM Gene Heskett wrote: > On Sunday 13 October 2019 19:46:55 Kenneth Lerman wrote: > > > Hello All -- especially Gene, > > > &

[Emc-users] (Off topic) A Question Re: BOBs and Opto-Isolators

, so I thought I'd mention them. Regards, Ken Kenneth Lerman 55 Main Street Newtown, CT 06470 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Unusual help request.

My suggestion: Use ethernet to optical fiber: https://www.fs.com/products/35333.html is $23. An SX module https://www.fs.com/products/11774.html is $6.00. Off hand, I don't know how much the fiber costs, but it's cheaper than copper. I've purchased these from fs.com and they are helpful and easy

Re: [Emc-users] tool changer with swiveling arm

To clarify the question: With this type of tool changer, one could speed up the tool change delay: 1. when loading a tool 1. unload the previous tool into one side of the arm 2. move the chain so that the new tool is ready to be loaded (if not already there) 3. grab the

Re: [Emc-users] Do we have a manpage editor/creator?

Hi Gene, If you look at http://www.linuxhowtos.org/System/creatingman.htm all will be clear. Ken On Wed, Dec 26, 2018 at 8:51 AM Gene Heskett wrote: > Greetings all; > > In looking over some of my older subroutine files, its becoming rather > glaringly apparent that the proper usage needs a

Re: [Emc-users] sim still broken

I suspect that it will be very lacking in rigidity. The width of the gantry is very large compared to the distance between the supports. That means the gantry will tend to cock with respect to the table. Also, as you press down on the Z axis, the gantry will want to lift on one side because of

Re: [Emc-users] O subroutines limited to 4 parameters, not 30?

Hi Ted, What is the meaning of "fail" in this context? Do you get some sort of error message? Or does smoke come out of the machine? :-) Ken On Sat, Dec 15, 2018 at 6:00 PM Ted Hyde wrote: > Greets - I'm calling an o sub from python and need to pass 8 parameters > to it. Per the docs, I'm

Re: [Emc-users] Accuracy of servo gear heads

Well, three arc minutes is a 20th of a degree. There are 20 * 360 = 7200 of them in a circle. A circle with a diameter of 10 inches has a circumference of 10 * pi or 31.4 inches. Divide that by 7200 -> .004. So, you can probably answer the question. Imagine a flat piece of ground steel 10 inches

Re: [Emc-users] need something like rockhopper, but faster

I believe that issue Gene thinks needs addressing is the following: Consider component A (say Jon's board) reads the hardware and produces a signal Sa. Component B reads Sa and produces Sb Component C reads Sb and produces Sc Component A (Jon's board again) reads Sc and writes to the hardware.

[Emc-users] Have You Seen This Absolute Position Sensor?

Kenneth Lerman Thu, Oct 4, 7:54 PM (2 days ago) to Emc-users ...for less than three dollars... <https://www.idt.com/document/dst/zmid520x-datasheet> I don't know what I might use it for, but it seems pretty neat. Ken Kenneth Lerman 55 Main Street Newtown, CT

Re: [Emc-users] Water or Air cooled spindles

It sounds to me like a car radiator from a junked car would make a perfect cooling tank and heat radiator. Ken On Wed, May 23, 2018 at 8:01 AM, Dave Cole wrote: > RV antifreeze works well for things like this. I have been using it for > years in my bandsaw coolant

Re: [Emc-users] Mesa choices

I wouldn't want to share an ethernet between real time control and ssh, file transfer, ... Either buy a PC with two ethernet ports or just add a second cheap one connected by USB. Then use the USB one for all of the usual stuff where there is no real time constraint. Ken On Sun, Apr 22, 2018 at

Re: [Emc-users] depth stops for R8 while making tap hats?

Hey Gene, Wouldn't a square R-8 collet make things simpler? Something like this? Then you could just use square stock for your tap holders. (Yeah, I know it's a bit late. But the idea just came to me in the middle of last

Re: [Emc-users] looking for M5mm x .8 5mm long screws

https://www.mcmaster.com/#standard-socket-head-screws/=1c7nzv5 McMaster has them -- stainless only. Ken On Sat, Mar 31, 2018 at 3:32 PM, Gene Heskett wrote: > And I don't seem to find any shorter than 10mm. > > 5mm long would be a great plenty. This is to be installed

Re: [Emc-users] possibly silly code question

Jon, I have one question I have that I haven't seen a good answer to. Why is there a need to do a second touch? Can't you just back off at low speed and see when the probe is no longer touching? I didn't see a significant difference when I did some tests. Everyone seems to do it the way you're

Re: [Emc-users] Off topic: wolfrom drive

The issue I see is how to machine this so that it fits "perfectly" so as to have zero backlash. An alternative might be to have three sets of planetary gears with some sort of spring loading so as to take out the "slop." Ken On Thu, Dec 21, 2017 at 5:21 AM, Gene Heskett

Re: [Emc-users] HALUI->MDI_COMMAND fails, 4 command limit?

Hi Gene, It's been a long time since I've looked at the code, and I don't have it in front of me. But... 1. The file is named _clear_offset.ngc -- isn't it (you didn't leave out the .ngc)? 2. As I recall, the file is opened the first time it is referenced (and memory mapped). After

Re: [Emc-users] [Emc-developers] trying to run synaptic-pkexec on the raspian

On Mon, Nov 28, 2016 at 12:32 PM, Gene Heskett wrote: > > > None of the /home/user/* are available to the system until you are logged > in, and then you cannot play with those files in wholesale renaming > quantities. > They are all available (to root)

Re: [Emc-users] Got "new" PC, some question about setting it up.

Gene said inches per minute. You are saying inches per second. You are off by a factor of 60. Ken On Fri, Sep 16, 2016 at 11:46 PM, Chris Albertson wrote: > Gene, > > I think I understand now > > On Fri, Sep 16, 2016 at 6:07 PM, Gene Heskett

Re: [Emc-users] Info needed.

Hi Gene, 1 -- I don't think they have bias magnets in them. 2 -- I don't think you will be happy with the repeatability as a limit switch. Also, the smallest bit of swarf that sticks to the magnet will cause you problems. I haven't tried it, but I wouldn't be optimistic. Regards, Ken On Tue,

Re: [Emc-users] Need some advice

Well, I noticed that the shipping weight is 550# and the machine weight is 600#. Do you suppose they fill the box with helium? Seriously, though, the thing that drives me crazy about new lathes for CNC conversion is that you are paying for a bunch of stuff you neither need nor want. * change

Re: [Emc-users] How to home a joint when position depends on other joint?

What you want to do is perform a topological sort (man tsort) on the graph. It should be simple enough to write a tool to do that. Ken On 12/14/2013 12:18 PM, Gene Heskett wrote: On Saturday 14 December 2013 11:38:26 Marius Alksnys did opine: Thanks, I will try it. This is something what

Re: [Emc-users] Talking of taps

On 11/5/2013 1:08 PM, John Thornton wrote: WOW the cheapest rate with the USPS is $45 to ship to England... I see: * Priority mail flat rate envelope: $23.95 * First-Class Mail International Letter (max thickness 1/4 inch) $3.20 Ken JT On 11/5/2013 10:29 AM, andy pugh wrote: Would anyone

Re: [Emc-users] Drill sharpening Re: G33.1 probem

A friend of mine, John Moran has been working on drill sharpeners for the home shop for many years. See: http://www.gadgetbuilder.com/DrillSharp.html for a great article on the subject. If you have any questions, I'm sure John would be happy to answer them. Regards, Ken On 11/4/2013 8:12

Re: [Emc-users] Linux question

That may depends on the computer configuration. I believe that my Intel board has a jumper to enable that. In some environments, you want the computer to come back online after a power failure. Ken On 10/19/2013 6:38 PM, Terry Christophersen wrote: Hi all, When I turn on the main power

Re: [Emc-users] Machine zero, fixture offsets.

Of course, if you think like a programmer and don't want to know anything about G92 or stuff like that, you just write a gcode subroutine to make the part. The subroutine takes two arguments, the X and Y coordinates of the (center, edge, whatever) the part. Then call the subroutine once for

Re: [Emc-users] Code Preview (Was: how long was your longes G-Code program ever?)

On 7/18/2013 11:59 AM, Charles Steinkuehler wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 7/18/2013 10:43 AM, andy pugh wrote: The (AXIS, STOP) magic comment might be better than increasing the cut size. I use this on all my gcode now, and it helps (a LOT), but loads are still

Re: [Emc-users] mail list over forums?

On 7/11/2013 9:00 AM, John Kasunich wrote: We've had this discussion before. Different people prefer to get their information in different ways. That is why we have both email lists and a forum. This topic is a lot like religion or politics - you can have a lot of talk, but in the end,

Re: [Emc-users] Servo issue

See below... On 7/5/2013 11:45 AM, Viesturs Lācis wrote: Hello! I am stuck with a servo motor issue that I have no idea for the cause. Machine has 5i23 and 2x 7i39 cards with total of 4 servo motors. I set it up 2 months ago and it was working correctly. Machine was idle for few weeks until

Re: [Emc-users] takeway from the Wichita meeting

On 6/30/2013 7:37 PM, andy pugh wrote: On 30 June 2013 14:11, Michael Haberler mai...@mah.priv.at wrote: there's something different at work, namely a rather high ranking of stability and quality of support being the overriding driving factor. While that clearly is a more commendable

Re: [Emc-users] Brain-Dead LinuxCNC G-Code Interface?

IANAL, But as far as I know, the only part of a patent that *really* matters is the claims. So even though the description seems obvious, the claims might say something like: where the insulator is made of pure unobtainium. That might be non-obvious. Ken On 6/27/2013 3:53 PM, Charles Buckley

Re: [Emc-users] What is the Wichita meeting?

On 6/12/2013 9:41 AM, Matt Shaver wrote: On Wed, 12 Jun 2013 13:17:05 +0200 Sven Wesley svenne.d...@gmail.com wrote: ...and why isn't it promoted at http://linuxcnc.org? Mostly because we're a bunch of knuckleheads. Is this you? https://www.facebook.com/sven.wesley I ask because if it is,

[Emc-users] Licensing Questionaire

I've snipped stuff from the top and bottom of Steve's post. My comments are below. On 6/8/2013 8:12 PM, Steve Stallings wrote: We should be so lucky. The LinuxCNC (nee EMC) community is a very diverse bunch. Some folks have been involved for only a few months, others have been around

Re: [Emc-users] Correct use of subroutines

On 5/10/2013 4:18 PM, Viesturs Lācis wrote: Hello! Today I was helping my client to prepare a g-code for their new machine I built. The particular code was manually optimized for faster performance and I thought that having a code for one part in subroutine and then creating another file,

Re: [Emc-users] Beaglebone LinuxCNC starterkit: ready-to-run SD card image

Beaglebone -- TI chip. Intended for industrial use. Family will be available forever. The boards are open source. Raspberry Pi -- Broadcom chip. Intended for cell phone use. A new model every year. The boards are open source -- you just can't buy the chips for them. The PRU on the Beaglebone

Re: [Emc-users] Beaglebone LinuxCNC starterkit: ready-to-run SD card image

On 4/28/2013 5:15 PM, Jon Elson wrote: Eric Keller wrote: On Sun, Apr 28, 2013 at 1:55 PM, Jon Elson el...@pico-systems.com wrote: Is there a consensus about BeagleBone vs. Raspberry Pi? I think it's a no-brainer myself. I have a Raspi, but I just don't see it competing with

Re: [Emc-users] LinuxCNC would be very nice on the UDOO board.

The Beagle Bones are so cheap, that we shouldn't be worrying about how many pins we can drive. Just connect a few together using etherCAT or real time ethernet, or whatever the thing supported by the hardware is called. As far as I'm concerned, the problem of no parallel port has been solved

Re: [Emc-users] Poor CV

On 4/10/2013 5:01 PM, andy pugh wrote: On 10 April 2013 21:50, dave dengv...@charter.net wrote: No panacea anywhere in sight. Something I saw somewhere on the Internet (possibly a link from mah) was an article about different approaches. One very interesting idea was that every move as well

Re: [Emc-users] missing man 9 hal

On 12/9/2012 6:31 AM, John Thornton wrote: Yea, there is nothing intuitive about man pages... either you know the magic names or your lost. Well, if you more or less know the subject, apropos usually helps. (But often gives too many false positives.) Ken On 12/8/2012 4:14 PM, Sebastian

Re: [Emc-users] OT - CNC Workshop not to be hosted by Digital

On 10/19/2012 9:23 PM, Jon Elson wrote: ed wrote: I talked to a vendor there in the mid 90's and he said it was $60K for the show. His booth was a 20 by 20 in the basement behind the stairwell in the old South building, the least prime spot you could find in the whole show. He could not even

Re: [Emc-users] Book Recommendation

On 9/8/2012 5:22 AM, andy pugh wrote: Rather off-topic, but I think a lot of us will feel a commonality with the main character in Trustee from the Toolroom by Nevil Shute. (Available on Kindle) Thanks for the recommendation. I enjoyed it. Ken

Re: [Emc-users] worsk: sim parport component

On 9/3/2012 4:51 PM, Michael Haberler wrote: well, that seems to work just fine - no major surprises here's as screenshot from a logic analyzer connected to an Intel D5252 parport, running the userland parport driver in sim mode http://static.mah.priv.at/public/uparport.png it's a 1kHz

Re: [Emc-users] Ubuntu from live-CD does not shut down or restart

I had the same problem. Or at least a similar problem having to do with hanging on restart. I reflashed bios with a newer version and that fixed it. Ken On 9/3/2012 1:15 PM, Viesturs Lācis wrote: Hello! I am stuck with a strange problem that I see for the first time: Ubuntu from liveCD of

Re: [Emc-users] G71 lathe roughing cycle

On 8/27/2012 9:16 AM, Ralph Stirling wrote: I have wished for a long time for a general mechanism for defining a path (profile) once, then using that path multiple times in functions. This reinvention of G71/G70 looks like a good opportunity to create such a mechanism. I use G71/G70 often

Re: [Emc-users] moglice, another note

On 8/27/2012 12:03 PM, Kirk Wallace wrote: On Mon, 2012-08-27 at 08:48 -0500, Martin Dobbins wrote: I'm not sure if this would work for you, I haven't tried it myself, but it may be worth a look: http://bbs.homeshopmachinist.net/threads/43645-Making-Acetal-leadscrew-nuts-the-easy-way

Re: [Emc-users] General question about gibs

On 8/24/2012 8:41 AM, Kent A. Reed wrote: On 8/24/2012 5:43 AM, Gene Heskett wrote: Oh no! Last I knew he only had 3 legs left cuz they weren't going to eat him all at once.:) I thought I was the only one left who knew that joke. People who grow up in farm country have a different view of

Re: [Emc-users] Hey Gene! Hand held O'scope for ya.

On 8/16/2012 2:00 PM, Jason Burton wrote: On Aug 14, 2012 10:16 PM, Gene Heskett ghesk...@wdtv.com wrote: On Tuesday 14 August 2012 23:09:35 Jason Burton did opine: On Aug 14, 2012 9:08 AM, Gene Heskett ghesk...@wdtv.com wrote: On Tuesday 14 August 2012 10:00:30 Mark Wendt did opine: Ebay

Re: [Emc-users] just a note

On 8/12/2012 9:36 AM, Stuart Stevenson wrote: Yesterday I was wondering what had triggered the action. I can hardly keep up with the reading. I agree - WOW The topics are very interesting also. I have spent so much time reading this list my wife is wondering if I have a girlfriend. :) An

Re: [Emc-users] moglice, another note

On 8/11/2012 2:15 PM, Jon Elson wrote: jeremy youngs wrote: http://www.moglice.com/ has anybody got experience wit this stuff? im thinking about lining my lead nuts with it as ti seems less involved (read expensive) than ballscrews and would help to eliminate the .006 backlash thats

Re: [Emc-users] long set screw

Hi Gene, McMaster has long set screws -- sort of. They have swivel pad set screws -- Steel 10 Degree Swivel Pad Set Screw for Angled Surfaces, 1/4-20 Thread, 3-3/8 Length Regards, Ken On 7/16/2012 5:08 AM, Gene Heskett wrote: On Monday 16 July 2012 04:43:01 jeremy youngs did opine:

Re: [Emc-users] ideas for bumpless transfer between encoders

Hi Ralph, I forget who said it, but... It is not sufficient that there be no obvious bugs. It should be obvious that there are no bugs. (Probably Hoare or Dikstra or some other pioneer.) I believe your solution fails that test. I could easily imagine a small amount of servo hunting in normal

Re: [Emc-users] ideas for bumpless transfer between encoders

On 7/12/2012 3:15 PM, Chris Radek wrote: On Thu, Jul 12, 2012 at 02:25:48PM -0400, Kenneth Lerman wrote: I understand that you are ...not very worried about a couple of counts every 75mm. It would be nice to have a cleaner solution. I didn't want to harp on it... but I would want to determine

Re: [Emc-users] OT: and Soapbox: 3D Printer Mods?

On 06/04/2012 08:31 PM, Jeshua Lacock wrote: On Jun 4, 2012, at 5:41 PM, dave wrote: It has always been my understanding that you can make a patented device; you just can't sell it. I don't think this precludes using that patented device to make things which you sell. IANAL and I don't play

Re: [Emc-users] [Emc-developers] move-while-paused in action: video

Thank you Michael. Once upon a time (6/22/2009), I suggested: == One way to approach this would be to use HAL to add a position offset to each joint. Normally, this would be set to zero. While paused, one could then have jog functions that changed those offsets. That could manually

Re: [Emc-users] Trajectory planning and other topics from a EMC(LinuxCNC) newbie (TheNewbie)

On 04/22/2012 08:31 PM, Steve Blackmore wrote: On Sun, 22 Apr 2012 20:48:56 +0100, you wrote: On 22 April 2012 16:07, Michael Haberlermai...@mah.priv.at wrote: gents, you are busily inventing path queueing mechanism number 3. The existing ones are: CRC offset curve aka queued_canon, and NCD

Re: [Emc-users] Trajectory planning and other topics from a EMC(LinuxCNC) newbie (TheNewbie)

On 4/20/2012 4:52 AM, Erik Christiansen wrote: On 20.04.12 09:53, Viesturs Lācis wrote: I was thinking about Kenneth's idea: 2012/4/19 Kenneth Lermankenneth.ler...@se-ltd.com: Is anyone here interested in writing a filter that takes as input a tolerance (error band) and a sequence of motions

Re: [Emc-users] Trajectory planning and other topics from a EMC(LinuxCNC) newbie (TheNewbie)

Here is something that just popped into my head. Could we: 1. Tag each segment with the maximum velocity at the end of the segment. The current scheme always sets it to zero. For the first segment, this will still be zero. For subsequent segments it will be the maximum velocity at

Re: [Emc-users] Trajectory planning and other topics from a EMC(LinuxCNC) newbie (TheNewbie)

On 4/19/2012 1:53 PM, Jon Elson wrote: Viesturs Lācis wrote: 2012/4/19 Stephen Dubovskysmdubov...@gmail.com: Around tight curves, that requires lots of short sections w/ high changes in velocity. But you have to go slow within the limits of the machine around those anyway. Just like

[Emc-users] Has Anyone Heard From Stuart Stevenson?

Hi Stuart, The weather reports from you neck of the woods have some of us worried. Please let us know that all is well with you and yours. Regards, Ken -- For Developers, A Lot Can Happen In A Second. Boundary is the

Re: [Emc-users] C Compiler - MPLAB

On 4/16/2012 3:06 PM, Stephen Dubovsky wrote: I don't mean to offend anybody, but AVR's are cheap and fall down easy to get started with. Why bother with PIC's? The only reason I can think of, is to fill time with the challenge at hand. Haha. I think the same thing now, but my suggestion is

Re: [Emc-users] State of Wizards/Druids for simple machining.

Yup. I'm here. It's been a while since I touched GWiz -- or EMC ^H^H^H^H LinuxCNC, for that matter. I've been thinking about a slightly different model for manual (or perhaps I should call it interactive) machining. Imagine: 0 -- select a tool from a menu (also feed rate, etc -- or possibly

Re: [Emc-users] linuxcnc, possibly bug, or global isn't global

Hi Gene, Remember that a variable must be defined (assigned to) before it is used. In this case, before means at run time; not necessarily lexically. I don't know if that is the problem, but it is a place to look. Regards, Ken On 03/05/2012 05:46 PM, gene heskett wrote: On Monday, March 05,

Re: [Emc-users] Why APT

Does anyone (on the list) have a link to the FORTRAN 77 source for P-APT? I'd be interested in taking a look at it. Ken On 3/4/2012 4:31 PM, Thomas Powderly wrote: I was sorry to learn Mr. Ross had passed on. He was looking for an interested CNC OEM/Mfctr to embed APT into the control when

Re: [Emc-users] Why APT

On 3/4/2012 5:07 PM, Kenneth Lerman wrote: Does anyone (on the list) have a link to the FORTRAN 77 source for P-APT? I'd be interested in taking a look at it. Ken Answering my own question, I found the source on sourceforge. Now, if I had an IBM 360, with an operating system, assembler

Re: [Emc-users] Why APT

On 3/4/2012 6:58 PM, Jon Elson wrote: Kenneth Lerman wrote: Answering my own question, I found the source on sourceforge. Now, if I had an IBM 360, with an operating system, assembler and fortran compiler, I could build it. GAG! No, you really DON'T want the 360, even by emulation. You

Re: [Emc-users] CAM Post-processors: how much of the specification(s) do they span?

On 2/19/2012 5:31 PM, Kent A. Reed wrote: Gentle persons: Eric said of my recent bout of pneumonia, [A]nd the antibiotics leave you like a wrung-out dishrag too, ISTR. Truer words were never spoken. While lazing about, I visited www.camzone.org for the first time. As I understand it, the

Re: [Emc-users] Is there a way to get the D525MW to boot up when the AC power is applied?

I had a problem when rebooting the system that was solved by flashing to the newest version of the BIOS. Ken On 2/17/2012 10:52 PM, Don Stanley wrote: Hi All; I just assembled my new D525MW computer system. When I apply power to the system the D525MW powers up for two seconds then powers

Re: [Emc-users] New dialects [Was: Do CAM instead? ]

. Brian « « « All of the first three lines of text are actually a quote of Kenneth Lerman's prior post. So let's go with this understanding: On 11.02.12 11:57, BRIAN GLACKIN wrote: Before that, Kenneth Lerman wrote: Yes, much more readable. The downside is that you can't do a restart at line

Re: [Emc-users] New dialects [Was: Do CAM instead? ]

On 2/11/2012 10:51 AM, BRIAN GLACKIN wrote: One question, from someone who hasn't used CAM. The CAM package would provide a way to specify the number of tool passes, to reach the final depth of a machining operation? I recently went away from redundant gcode lines with the added tool paths

Re: [Emc-users] parsing the current language dialect, and describing as EBNF

The use of matching labels to resolve ambiguity was just a cheap trick to lower the cost of implementation. There is no reason that we should keep the labels on control structures. We should then follow the same rules that C uses. Ken On 2/4/2012 10:25 AM, Michael Haberler wrote: {this is a

Re: [Emc-users] Workpiece is longer than the mill travel

On 2/4/2012 3:08 PM, dave wrote: On Sat, 4 Feb 2012 12:21:16 -0500 Przemek Klosowskiprzemek.klosow...@gmail.com wrote: On Sat, Feb 4, 2012 at 12:11 PM, Erik Friesene...@aercon.net wrote: Make two programs, with the second program zeroing on the last hole of the first. On Sat, Feb 4,

Re: [Emc-users] question on gcode parsing

On 01/31/2012 11:14 PM, Erik Christiansen wrote: On 30.01.12 07:54, Kenneth Lerman wrote: On 01/30/2012 12:28 AM, Erik Christiansen wrote: What is being missed here is that the present parser does all that you fear above, just without the maintainability and documentation benefits conferred

Re: [Emc-users] question on gcode parsing

On 02/01/2012 03:34 AM, Erik Christiansen wrote: On 31.01.12 21:45, dave wrote: To my uncluttered mind ... read blank ... is this a good way to set the state of a machine at any given line as a precursor to restart from line no? IIUC¹, running an interpreter through the code from line 1 to a

Re: [Emc-users] Passing file names into a subroutine

On 02/01/2012 10:01 AM, BRIAN GLACKIN wrote: Hi all. I tried to ask this question on IRC last eve and had trouble staying in channel. equipment - 25 X 49 X 4 gantry router for wookwork - all cutting is 2.5D I have a subroutine o100 that at present, I pass three values too Value 1 is the

Re: [Emc-users] rs274ngc bison/flex parser

On 02/01/2012 10:45 AM, Michael Haberler wrote: Am 01.02.2012 um 13:36 schrieb Erik Christiansen: On 01.02.12 11:48, Michael Haberler wrote: Am 01.02.2012 um 09:23 schrieb Erik Christiansen: The grammar specifies expression and control flow constructs, but seems 100% devoid of any explicit

Re: [Emc-users] question on gcode parsing

On 01/30/2012 12:28 AM, Erik Christiansen wrote: On 29.01.12 23:05, Kenneth Lerman wrote: Are you suggesting that a three axis machine where there is no A axis should have a different grammar than a four axis machine that does have an A axis. No, there is no such constraint in the current

Re: [Emc-users] question on gcode parsing

On 1/29/2012 9:02 AM, Erik Christiansen wrote: On 29.01.12 12:59, andy pugh wrote: On 29 January 2012 12:29, Erik Christiansendva...@internode.on.net wrote: While that could be 'de-hashed' without an alternative numbered parameter identifier, I don't see how you'd propose to handle: #43 =

Re: [Emc-users] question on gcode parsing

On 1/29/2012 9:20 AM, andy pugh wrote: On 29 January 2012 14:02, Erik Christiansendva...@internode.on.net wrote: oo = 1 OK, O Codes. They'll all go in a declutter, replaced by their naked keywords, No, that is creating a second named parameter in order to be more ambiguous later:

Re: [Emc-users] question on gcode parsing

On 1/29/2012 10:55 AM, Erik Christiansen wrote: On 29.01.12 14:20, andy pugh wrote: On 29 January 2012 14:02, Erik Christiansendva...@internode.on.net wrote: oo = 1 OK, O Codes. They'll all go in a declutter, replaced by their naked keywords, No, that is creating a second named

Re: [Emc-users] question on gcode parsing

On 01/29/2012 10:40 PM, Erik Christiansen wrote: On 29.01.12 13:30, Kenneth Lerman wrote: On 1/29/2012 10:55 AM, Erik Christiansen wrote: What further simplifies the task is that we can, for example, group the clauses which are common to G0, G1, etc., and give them a name. The part

Re: [Emc-users] Servo tuning - wtf?

On 1/28/2012 5:05 PM, Jon Elson wrote: Viesturs Lācis wrote: 2012. gada 28. janvāris 18:14 noelnoel.ro...@comcast.net rakstīja: All interested in Servo Tuning. Have a look at: http://support.motioneng.com/Downloads-Notes/Tuning/default.htm In the link from Noel I find that all three

Re: [Emc-users] question about tapered threading (etc)

On 1/24/2012 4:52 PM, John Prentice wrote: - Original Message - From: Kent A. Reedknbr...@erols.com Several items were called out recently as being show stoppers for LinuxCNC. I do not aspire to learn the inner workings of LinuxCNC well enough to contribute to discussion of the

Re: [Emc-users] hal taking machine down

On 1/2/2012 2:12 PM, gene heskett wrote: Stuff that I deleted Subtotal 230.25 Shipping Cost (UPSGR)13.22 Total$243.47 Does that include the lpt breakout kit? And is it time I bought a portable dvd writer that plugs into a usb port to do installs such with? Will it

Re: [Emc-users] PID BLDC

Hi Viesturs, For a cable to be good, it is necessary that all the signals have low end to end resistance, but that is not sufficient. You should also check that no two signals are shorted to each other. (But you probably know that.) Regards, Ken On 11/27/2011 5:17 AM, Viesturs Lācis wrote:

Re: [Emc-users] Need help with servo tuning

that. (I then pointed out that technically speaking, fifty percent are dumber than the median, not the average.) Be careful. Ken -- Kenneth Lerman 55 Main Street Newtown, CT 06470 203-426-3769 -- All of the data generated

Re: [Emc-users] Chips on Flash

A first class parcel costs $1.05 plus .17 per ounce. That's pretty cheap. Ken On 03/12/2011 09:53 PM, Kent A. Reed wrote: On 3/11/2011 11:32 AM, Kirk Wallace wrote: I'm not sure how typical my situation is, but it costs me about $20 to download 1GB of data, so it's not exactly cheap to

Re: [Emc-users] Spindle encoder, what scale to use for rigid tapping

On 12/17/2010 09:04 AM, Igor Chudov wrote: Yep, I am going to shoot a video. I want to write a subroutine that accepts a closure and applies this closure to a rectangular grid of points. Do you know that you can pass a subroutine number as an argument to another subroutine and then invoke it?

Re: [Emc-users] Watchdog Sizing

I would use a single pin for communication to the host with some variant of the one-wire protocol used by iButtons. It is simple, elegant, and relatively insensitive to timing. Ken On 12/04/2010 04:30 AM, Erik Christiansen wrote: On Fri, Dec 03, 2010 at 07:54:57PM -0800, Kirk Wallace wrote:

Re: [Emc-users] handwheel tapping

Stuart, See: http://deepblue.lib.umich.edu/bitstream/2027.42/60859/1/paulgrif_1.pdf Figure 2.1 Ken On 10/01/2010 09:32 PM, Stuart Stevenson wrote: Hi Ken, That is a good idea!!! Isn't it possible to use a stepper motor as a pulse generator? If so, wouldn't it be possible to variably

Re: [Emc-users] handwheel tapping

Hi Stuart, If you are going to do some computer assisted hand tapping, you might want to add some haptic feedback. If you measure the spindle current and use that as a measure of load, you could drive a small servo connected to the mpg and use it as a brake. If you make the braking force

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