Re: [Emc-users] Animatics. Was:Small PC for use with 7i90 / 7i96?

On Thu, 1 Apr 2021 at 18:49, Gregg Eshelman via Emc-users < emc-users@lists.sourceforge.net> wrote: > I'm thinking it might be possible for software like LCNC to do things > like translate complex moves the mill's controller doesn't have into > combinations of things it can do that would produce

[Emc-users] Animatics. Was:Small PC for use with 7i90 / 7i96?

On Thu, 1 Apr 2021 at 00:43, Gregg Eshelman via Emc-users < emc-users@lists.sourceforge.net> wrote: I have all the technical info and some setup/configuration software for the > Animatics servo controller but nobody is interested in adding support to > LCNC. I am not sure that you have ever expl

Re: [Emc-users] Spindle rps and index

On Thu, 1 Apr 2021 at 00:54, Karl Schmidt wrote: The names of these pins seem to have changed.. Good point. It's an SVG, so the changes can be made with a text editor and find/replace. motion.spindle- to spindle.0. (in most cases). It is probably possible to pass the .svg through the regex sea

Re: [Emc-users] experimental bearings for harmonic drive

On Wed, 31 Mar 2021 at 03:40, Gene Heskett wrote: > the global flow to 80%, it laid a brim so-so with the head gap reduced > by .1mm, and I went back up to 80C/245C, but 4 layers up its still > slobbering and laying extra plastic that looks like snow. The bed temp and extrude temp seem high. I d

Re: [Emc-users] experimental bearings for harmonic drive

On Wed, 31 Mar 2021 at 02:36, Chris Albertson wrote: > > In fusion I'd make the bearing racers by first making the solid donut parts > then placing a slightly uoversize disk inside the metal I model bearings in Fusion pretty regularly. 1) Create a sketch 2) "L" for line, click on "centreline

Re: [Emc-users] Small PC for use with 7i90 / 7i96?

On Tue, 30 Mar 2021 at 03:01, Jon Elson wrote: > > On 03/29/2021 07:48 PM, Billy Huddleston wrote: > For really small, like a 7" cube, you can get mini ITX > motherboards and a matching cabinet and power supply from > the usual outfits like NewEgg, etc. The 7" cube box allows > full-height PCI ca

Re: [Emc-users] Small PC for use with 7i90 / 7i96?

On Mon, 29 Mar 2021 at 19:51, Billy Huddleston wrote: > Contemplating this: https://www.amazon.com/dp/B085RZDVL5 I have one of the previous model, it works perfectly adequately. In fact I bought it specifically to test the LinuxCNC installer on UEFI hadware, so I am pretty confident that LinuxCN

Re: [Emc-users] experimental bearings for harmonic drive

On Mon, 29 Mar 2021 at 01:26, Gene Heskett wrote: > Thats not what I have, and DDG searching for PEI gets you about the first > 500 hits for Prince Edward Island. :) Try eBay and "PEI Printing Surface" -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the espe

Re: [Emc-users] experimental bearings for harmonic drive

On Sun, 28 Mar 2021 at 19:18, Gene Heskett wrote: > PEI? If you mean the black stuff shipped with overture filament thats too > small for an ender 3, All the PEI film I have seen has been a transparent amber colour, similar but paler than Kapton. > > An occasional wipe with an alcohol-soaked ra

Re: [Emc-users] experimental bearings for harmonic drive

On Sun, 28 Mar 2021 at 14:50, Gene Heskett wrote: > This is clear petg, but I simply cannot get it to stick to the glass. I covered my build plate with one of the sheets of PEI sold for the purpose, and most things stick well. An occasional wipe with an alcohol-soaked rag helps on the occasions

Re: [Emc-users] Heidenhain LS403 scale

On Sat, 27 Mar 2021 at 03:47, Karl Schmidt wrote: > Looks like these guys make some chips - with datasheets in English! > > http://www.ichauschina.com/en/products/interpolator.htm They are a German company... https://www.ichaus.de/product/iC-MN They used to have a Sin/Cos development board avai

Re: [Emc-users] Heidenhain LS403 scale

> On 26 Mar 2021, at 21:39, Peter C. Wallace wrote: > > he common way would be to get a Heidenhain EXE box to do the interpolation Could the 7i49 (with completely different firmware) do it. That is sin/cos analogue too. ___ Emc-users mailing li

Re: [Emc-users] Die guide post insertion/removal force

On Fri, 26 Mar 2021 at 02:40, Karl Schmidt wrote: > Good example of a great product that didn't sell well - it should have.. > > I was looking to see if there was a Chinese clone of these?? Apparently: https://www.alibaba.com/product-detail/Manual-magnetic-sheet-metal-bending-machine_6229692019

Re: [Emc-users] pushbuttons for "canned" G code?

On Thu, 25 Mar 2021 at 03:05, Jon Elson wrote: > I already have a pyvcp on it. I'd like to add buttons > marked 1, 2, 3 and 4, and when the user clicks > one, the G-code is fed to the interpreter and run. You can do this, as mentioned, with PyVCP and MDI_COMMANDS (and note that an MDI_COMMAND c

Re: [Emc-users] Die guide post insertion/removal force

On Wed, 24 Mar 2021 at 19:10, Nicklas SB Karlsson wrote: > for sheet metal bending tool but should work for the few parts I expect > to need. ... bending tool will be used to make boxes > for my driver cards, If I was making a sheet metal bender I would make an electromagnetic one. http://aayb

Re: [Emc-users] Die guide post insertion/removal force

On Wed, 24 Mar 2021 at 05:13, Nicklas SB Karlsson wrote: > > Anybody have any idea about the insertion/removal force of die guide posts? No. Trying to work out what you are asking, it sounds like you might be planning to buy a hydraulic press, but do not know what force you need? But if they ar

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

On Mon, 22 Mar 2021 at 13:23, Sam Sokolik wrote: > I am sure Andy can explain it. It doesn't make sense to me. It's because there is an extra 1-tooth movement of the spline with the moving gear. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designe

Re: [Emc-users] openscad to normal gcode converter?

On Sun, 21 Mar 2021 at 21:15, Gene Heskett wrote: > But fusion is no longer free. It's still fairly free if you don't need 5-axis toolpaths etc. https://www.autodesk.com/products/fusion-360/personal -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especi

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

On Sun, 21 Mar 2021 at 20:21, Viesturs Lācis wrote: > I do not understand, how to get equal pitch diameter with different > number of teeth... You can shift the profile of gear teeth. You can add an extra couple of teeth, which moves more of the tooth above the pitch circle, or remove a couple a

Re: [Emc-users] Std D-flatted motor shaft, how is size of flat determined?

On Sun, 21 Mar 2021 at 01:12, Gene Heskett wrote: > It seems to me there ought to be a std math rule for that, but I've not > found a reliable reference. Why do you think that? Surely the manufacturer can make any flat that they want? I would measure the actual shaft (flat to rounded opposite c

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

On Fri, 19 Mar 2021 at 15:07, Sam Sokolik wrote: > > It isn't going to > be run like this in normal situations and you can always print more gears... I wouldn't imagine that printing a new flex gear talkies very long, either? -- atp "A motorcycle is a bicycle with a pandemonium attachment and i

Re: [Emc-users] Spindle rps and index

On Fri, 19 Mar 2021 at 01:46, John Dammeyer wrote: > I take it then that you can't actually move the spindle to the index position > unless you have some sort of control beyond velocity? Velocity control + PID = position control. Here is a schematic of a typical LinuxCNC spindle orient setup:

Re: [Emc-users] OT: Driving tiny steppers

On Thu, 18 Mar 2021 at 20:52, Frank Tkalcevic wrote: > Is there anything special about driving these motors? I guess that as they are 20-step motors it is a long way between the poles, and microstepping relies on finding an elastic equilibrium between poles. I think that it is often like you de

Re: [Emc-users] Stamping tool guide column fastening

On Mon, 15 Mar 2021 at 19:05, Nicklas SB Karlsson wrote: > > Then they have standard SMS that look perfectly > smooth though marked with diameters Ds6 in one end and Dh4 in the other > end, these are by no surprise cheaper, anyone have an idea how to fasten > them? Into a flanged foot, I would gu

Re: [Emc-users] Probe recommendations.

On Sun, 14 Mar 2021 at 17:13, Gene Heskett wrote: > I wonder what the shipping may be, and from where? The .by in vers.by and the price in Belarusian Rubles rather indicates Belarus. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechan

Re: [Emc-users] Probe recommendations.

On Sun, 14 Mar 2021 at 10:07, Gene Heskett wrote: > > https://vers.by/en/touch-probes/9-vers-pr.html > > > What is this in USD? It says "355.00 BYN~ 10050 RUB, 136 USD, 113 EUR" -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mec

Re: [Emc-users] Gear cutting setup on low-cost HF mill??

On Thu, 11 Mar 2021 at 19:58, Chris Albertson wrote: > Using robotic > terminology it will be a quadruped where each leg has 3 degrees of freedom. > My goal is to design something that can be made for under $100 per axis > ($1,200 total cost) This is actually possible but performance is poor

Re: [Emc-users] Gear cutting setup on low-cost HF mill??

On Thu, 11 Mar 2021 at 19:29, Jon Elson wrote: > Bridgeport made an adapter to turn their mill into a mini > shaper for this purpose. A "slotting head" Many mills had them available as an accessory. (Including my Harrison) it basically makes them into a slotter, rather than a shaper: http://ww

Re: [Emc-users] Gear cutting setup on low-cost HF mill??

On Thu, 11 Mar 2021 at 19:11, Feral Engineer wrote: > > As a side note, fanuc, Mitsubishi and the other big names have a dedicated > hobbing function that synchronizes the linear and rotary axis based on > number of teeth, module, pitch diameter, tooth angle... Bunch of factors. The LinuxCNC vers

Re: [Emc-users] Gear cutting setup on low-cost HF mill??

On Thu, 11 Mar 2021 at 17:08, Jon Elson wrote: > Or, with a mini right angle drive attached to the machine quill. Though to do that you would have to make your own convex involute cutters. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of

Re: [Emc-users] Gear cutting setup on low-cost HF mill??

On Thu, 11 Mar 2021 at 13:05, wrote: > I believe that wire EDM is the usual way to make small quantities of internal > (ring) gears. It seems possible that one might imitate a mini-Fellows by > moving the z-axis up/down to shave the gear. Bear in mind that the Fellows system still generates th

Re: [Emc-users] Gear cutting setup on low-cost HF mill??

On Thu, 11 Mar 2021 at 06:31, Chris Albertson wrote: > What's the best kind of steel to buy that gives a > combination of machinability on a small mill and strength. I will concur with Marcus, when making starter gears for the Ner-a-Car I used EN8. EN8 is the old name (ie, before 1970) name for

Re: [Emc-users] linuxcnc forum website: Lathe G code Generator

On Mon, 8 Mar 2021 at 23:50, R C wrote: > With 'LinuxCNC Master' do you mean the master on github? The easy way to get it is precompiled from the buildbot: http://buildbot.linuxcnc.org -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mech

Re: [Emc-users] linuxcnc forum website: Lathe G code Generator

On Mon, 8 Mar 2021 at 22:46, R C wrote: > Do I need an addon/plugin or so to actually run examples, I found, that > have G71/G72 code/cycles in it or so? LinuxCNC Master (also known as development or 2.9) includes G71 / G72. The cycle is not included in 2.8. Master also has sample .ngc files

Re: [Emc-users] HTML Help

On Mon, 8 Mar 2021 at 17:08, Sebastian Kuzminsky wrote: > Yes, although the words in buildbot language are different. "2000.docs" > is a builder (an abstract runner of build recipes). It runs on a > buildslave (a computer). Though a friend who works for the Linux Foundation has mentioned that

Re: [Emc-users] HTML Help

On Mon, 8 Mar 2021 at 07:58, John Dammeyer wrote: > Isn't that a requirement for documents? If it's a code example why would it > be created to be anything but 7 bit ASCII? I guess I'm wondering if the > fault doesn't lie with 'groff' but with the authors who don't take the time > to do it r

Re: [Emc-users] HTML Help

On Mon, 8 Mar 2021 at 07:20, Sebastian Kuzminsky wrote: > This will make the docs on wlo copy-paste-able, but it won't help anyone > who wants to build our docs on Wheezy. I can live with that. Anyone still building docs using Wheezy probably transcribes them to parchment with a quill pen anywa

Re: [Emc-users] nother not so silly Q

On Mon, 8 Mar 2021 at 11:15, Gene Heskett wrote: > Its the man page for linuxcnc's pid module that I want a hard copy of. All the LinuxCNC manpages are available as PDF, probably directly from the CNC menu on your PC. Or can be downloaded from http://linuxcnc.org/docs/2.8/pdf/LinuxCNC_Manual_Pag

Re: [Emc-users] linuxcnc forum website: Lathe G code Generator

On Mon, 8 Mar 2021 at 05:14, R C wrote: > I am still looking for some tools/utilities to create/run g-codes for > a cnc lathe, in linuxcnc. With G71 / G72 it might be easier to convert a drawing to G-code than it is to model it in CAD to run CAM. -- atp "A motorcycle is a bicycle with a pand

Re: [Emc-users] HTML Help

On Sun, 7 Mar 2021 at 04:15, Chris Albertson wrote: > remembers nrof, it would not be super hard to place tags on actual code > that needs to be on mono-space. There are around 400 manpages. It might not be hard, but it would be tedious. -- atp "A motorcycle is a bicycle with a pandemonium att

Re: [Emc-users] HTML Help

On Sat, 6 Mar 2021 at 04:19, Gregg Eshelman via Emc-users wrote: > > It's why one should never ever use Unicode, UTF-8 or "friendly HTML" codes > for any character that's in the single byte Extended ASCII set. I don't think that anyone has deliberately used Unicode in the LinuxCNC docs when typi

Re: [Emc-users] Lathe spindle vfd settings

On Sat, 6 Mar 2021 at 00:07, Feral Engineer wrote: > I've got 2 speed pulleys on mine 2000 and 4000rpm. Just want to try and > fine tune the rpm and see if there's a way to soften the acc/dec without > messing with the vfd (don't have the removable programming panel). Which VFD is it? In some ca

Re: [Emc-users] Lathe spindle vfd settings

On Fri, 5 Mar 2021 at 23:31, Feral Engineer wrote: > > Can someone send me a copypasta of their spindle hal stuff? Pid, ff0,1,2 > encoder feedback, all that? I don't actually run PID on my lathe spindle. I have some moderately complex gear selection stuff going on, but otherwise I just trust the

Re: [Emc-users] HTML Help

On Fri, 5 Mar 2021 at 18:05, andy pugh wrote: > Looking at the source HTML on the server by ssh: > sendkeys.N.current−event > s32 out shows the current scancode without keyup / keydown > markers. > > Looking at the delivered HTML: > sendkeys.N.current−event > s32 out sh

Re: [Emc-users] HTML Help

On Fri, 5 Mar 2021 at 17:31, Mark Wendt wrote: > > Maybe it's in the web server then and how it outputs the html. What shows > up in the base HTML code that creates the page? A hyphen or a dash? Looking at the source HTML on the server by ssh: sendkeys.N.current−event s32 out shows the current

Re: [Emc-users] HTML Help

On Fri, 5 Mar 2021 at 16:27, Mark Wendt wrote: > What is being used to generate the HTML output? Magic, as far as I can tell. Original source is troff (or groff, I get them confused) https://github.com/LinuxCNC/linuxcnc/blob/master/docs/man/man1/halui.1 Then that is converted to asciidoc (I thin

[Emc-users] HTML Help

It has become evident that the online LinuxCNC docs in some cases (but not all) are displaying en-dashes in place of hyphens in HAL pin names. ie, what should be a 2D is an E2 88 92 For example: http://linuxcnc.org/docs/2.8/html/man/man1/halui.1.html has: halui.tool.length−offset.a float out But

Re: [Emc-users] Debian gui lockups on fresh install

On Fri, 5 Mar 2021 at 06:23, Feral Engineer wrote: > > So new discovery. If I plug in an external monitor, both displays work > perfectly. Congratulations, a new and interesting problem never seen before... All I can suggest is different graphics drivers. This wiki page is probably 10 years out

Re: [Emc-users] OT: pcb milling

On Wed, 3 Mar 2021 at 15:50, R C wrote: > > I wonder how long before someone comes up with something, so that you > can just print a pcb on a 3d printer. https://hackaday.com/2021/02/27/a-pcb-out-of-a-quarter/ -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for

Re: [Emc-users] Tandem home switches on single axis

On Wed, 3 Mar 2021 at 03:03, Gene Heskett wrote: > 'PROGRAM_EXTENSION = .gcode 3D Printer > > Without a second quote. That does seem spurious. They all have it, but the problem is a missing closing quote. https://github.com/LinuxCNC/linuxcnc/blob/master/docs/src/config/ini-config.txt#L482 > D

Re: [Emc-users] Engraver Depth Control

On Tue, 2 Mar 2021 at 20:44, Thaddeus Waldner wrote: > What I would like to do is mount the spindle directly to the z-axis (as one > normally would). Then have a collar that surrounds the engraving bit rub with > spring pressure against the top surface of the workpiece. This collar would > be

Re: [Emc-users] syntax for naming .bit files

On Tue, 2 Mar 2021 at 19:37, dave engvall wrote: > I've downloaded the 7i90.zip and unpacked to get the .bit files. Is > there a short tutorial or plain list that interprets the file names and > gives me encoders, pwm, etc ST = steppers SV = servos (a matching pair of encoder and pwm, typically

Re: [Emc-users] Tandem home switches on single axis

On Mon, 1 Mar 2021 at 04:24, Feral Engineer wrote: > z axis utilize a mechanical limit switch to latch home position, but then > each axis has a pnp proximity sensor that triggers the actual home position Are both the switch and the PNP on at the same time? Is the PNP "long" enough to serve as a

Re: [Emc-users] Tandem home switches on single axis

On Tue, 2 Mar 2021 at 07:36, Gene Heskett wrote: > The problem with homing the bs-1 is that the home switch is activated by > a notch in the hub of its spindle It's probably best to home a rotary axis to a 180 degree target. With search and backoff speeds set high, and a slow latch. Then it onl

Re: [Emc-users] pre-programmed keys or macros ?

On Sun, 28 Feb 2021 at 23:42, R C wrote: > I made those changes, but when starting linuxcnc I get this: > Error: no pyvcp element in file! > Do you want to use a keyboard shortcut, a VCP button or a physical button? All are possible, but the implementations are different. -- atp "A motorcycle

Re: [Emc-users] pre-programmed keys or macros ?

On Sun, 28 Feb 2021 at 22:47, R C wrote: > (I probably have to play with the 'MDI_COMMAND a bit, since I want to > do that in 2 steps. First go to the x0, y0 position and after that to > the Z0, to prevent crashing into anything) Just make it call an O-word sub that does whatever sequence you w

Re: [Emc-users] pre-programmed keys or macros ?

On Sun, 28 Feb 2021 at 00:33, R C wrote: > How can I create a button, or a "key combination", that does that? https://forum.linuxcnc.org/38-general-linuxcnc-questions/38753-looking-for-syntax-for-axisrc-file-to-bind-a-key-to-run-o-code-ngc-file (You need to put the G-code in an O-word suproutin

Re: [Emc-users] (off topic) nema17 angle gearbox

On Fri, 26 Feb 2021 at 18:49, R C wrote: > this is off topic, but was wondering if anyone knows of any 90 degree > angle nema17 gearboxes (preferably 1:1) To be unhellpful: I don't know of any but most of the NEMA17 that I see are shorter than they are wide, so I am not sure what the applicatio

Re: [Emc-users] Accuracy of the resolver.

On Mon, 22 Feb 2021 at 17:37, dave engvall wrote: > > Another view point. > https://www.heidenhain.us/resources-and-news/resolvers-vs-encoders/ How odd that the encoder manufacturer thinks that encoders are better :-) -- atp "A motorcycle is a bicycle with a pandemonium attachment and is desig

Re: [Emc-users] Accuracy of the resolver.

On Sun, 21 Feb 2021 at 18:17, nkp216 wrote: > > How to calculate the accuracy of the resolver? In terms of linearity or in terms of resolution? Resolution is hard to quantify, as they are analogue devices, so the accuracy is dependent on the measurement device, not the sensor. The Mesa 7i49 anu

Re: [Emc-users] Lost Audio on new 2.8.x buster install

On Sat, 20 Feb 2021 at 03:09, Scott Harwell via Emc-users wrote: > > Reinstalled Buster 2.8.x iso today. I got the WIFI working, so I could > install the 7i76 Mesa board and still have internet.Now no sound. Any clue on > what I did wrong? I can't guarantee that sound works on any of my test ma

Re: [Emc-users] Advice on sizing a pulley in the parametrics for openscad needed.

On Thu, 18 Feb 2021 at 22:49, Chris Albertson wrote: > This is good because it > removes mass from the moving head. ... > But the direct feed head has much better control of the extrusion process > as there is only about 10mm of filament between the motor and the brass > nozzle. I have an answer

Re: [Emc-users] unpluggable axis controls

On Tue, 16 Feb 2021 at 01:23, Gene Heskett wrote: > How should I proceed? Is it really too hard to just reboot from a different INI file? Most of the HAL can stay the same with the right splitting up of the HAL files, and much of the INI can be common too, using #INCLUDE in the master INI file

Re: [Emc-users] dynamic glade ui's

> On 15 Feb 2021, at 23:12, Ralph Stirling > wrote: > > > Is this possible? Any suggestions or examples to help? I think that you can do anything you want to the widgets via the usual Gtk(?) interface. I have certainly moved widgets around inside a Glade tab using the python handler cod

Re: [Emc-users] Some questions about 6i25 and 7i77+7i74 combo

On Sun, 14 Feb 2021 at 15:06, Viesturs Lācis wrote: > How do I specify in HAL file, what mode 7i77 should use? I intend to > use mode 0 - analog outputs, encoder inputs and onboard I/O pins, It will default to Mode 0. But you set it with the "loadrt hm2_pci config="...sserial_port_0=02x

Re: [Emc-users] Some questions about 6i25 and 7i77+7i74 combo

> On 14 Feb 2021, at 14:29, Viesturs Lācis wrote: > > > Then I have no idea, what I am missing. > I have only analog outputs under hm2_5i25.0.7i77.0.1 No field io power? ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists

Re: [Emc-users] Some questions about 6i25 and 7i77+7i74 combo

On Sun, 14 Feb 2021 at 09:46, Viesturs Lācis wrote: > What I did notice there is that I do not understand, how to determine, > which gpio pins are outputs and which are inputs. For 7i96 board > outputs have ssr in the pin name. 7i77 also has output drivers on > board so I would expect them assign

Re: [Emc-users] Dealing with Servo Faults

On Thu, 11 Feb 2021 at 04:39, Gene Heskett wrote: > I've yet to come up > with a scheme to detect that it is plugged in, and if not, disable > linuxcnc's ability to see an error because its not there I have a GPIO pin looped up to the connector socket and back. A jumper in the plug completes th

Re: [Emc-users] 5-Axis Toolpath Generation for CAM

On Thu, 11 Feb 2021 at 03:20, Bari wrote: > https://dspace.mit.edu/bitstream/handle/1721.1/29225/50140264-MIT.pdf One of the better PhD theses I have read. (Not that I have read all of it) It is interesting to think back to what the state-of-the-art was in 2001. I think that I was still using 2

Re: [Emc-users] PCB fabrication

On Wed, 10 Feb 2021 at 17:14, Alan Condit wrote: > > Can anyone tell me what fabrication house they > would use? I have used Seeed Studio for bare PCBs several times. I have also used PCBAStore for complete, populated boards (STMBL) and was happy enough. I have heard decent things about JLC PCB.

Re: [Emc-users] Dealing with Servo Faults

On Wed, 10 Feb 2021 at 16:26, Jon Elson wrote: > > So, non-faulted drives will stop, but hold position. > > > Well, the issue there is whether a faulty drive would > actually stop when disabled. I was assuming that the faulted drives would disable themselves. I was thinking about what to do with

Re: [Emc-users] Dealing with Servo Faults

On Wed, 10 Feb 2021 at 05:11, John Dammeyer wrote: > Should just the enables to the other servo drives be removed or should power > be cut to all drives. I don't know what the industry standard is, but I can think of arguments for leaving the drives enabled, but stopping the motion controller.

Re: [Emc-users] [Emc-developers] hal_pi_gpio config string

On Tue, 9 Feb 2021 at 13:28, Thomas J Powderly wrote: > loadrt hal_pi_gpio pi_pins={,,,}{,,,}{,,,} > each 'quad' consists of braces enclosed data I think that the modparam handling struggles with embedded commas inside a single element. I would suggest: loadrt hal_gpio config=12or0,1i,23i,...

Re: [Emc-users] machine opinion please

On Mon, 8 Feb 2021 at 22:38, Jon Elson wrote: > Oh YEAH! That's why I can't have a Bridgeport BOSS machine, > the top of the head would be WAY up inside the kitchen > cabinets! So? It might even make shifting the belt easier. -- atp "A motorcycle is a bicycle with a pandemonium attachment an

Re: [Emc-users] machine opinion please

On Mon, 8 Feb 2021 at 10:15, Gregg Eshelman via Emc-users wrote: > > A closer look at the pics and I see it's a TM mill with the VH-2 vertical > head. Ah, yes, it doesn't seem to have the swinging table (though the difference is rather subtle and hard to spot in photos, so it might just have los

Re: [Emc-users] machine opinion please

On Mon, 8 Feb 2021 at 09:09, Gene Heskett wrote: > > I doubt it. In fact the whole mill might be surprisingly tiny. A bit more research indicates that the "VH-2" in the auction description is actually the designation of the vertical head (Vertical Head 2?) The mill itself is probably a Hardinge

Re: [Emc-users] machine opinion please

On Sun, 7 Feb 2021 at 20:10, wrote: > Perhaps using a collet results in more variability of tool lengths compared > to an R8 alone. However, I doubt that either way is reproducible to less > than several thou. The whole class of 7/24 tapers rely on pulling back to the same place every time. A so

Re: [Emc-users] machine opinion please

On Sun, 7 Feb 2021 at 13:21, Gene Heskett wrote: > Neat, but does it have ball screws and room on the table for my converted > BS-1? I doubt it. In fact the whole mill might be surprisingly tiny. I have no idea, it was just a random eBay search to see what you kind of machine you could get for y

Re: [Emc-users] machine opinion please

On Sun, 7 Feb 2021 at 03:29, Jon Elson wrote: > want an R8 taper, vastly more tooling is available for it. > Or, an NMTB30 taper, but that will > make the holders more expensive. Not that much more expensive, and they are better in all respects. R8 only looks good compared to MT4. -- atp "A m

Re: [Emc-users] machine opinion please

On Sat, 6 Feb 2021 at 22:52, Gene Heskett wrote: > The column does look to be of adequate size, unlike most. I still think you would possibly be better-served by a used industrial machine. https://www.ebay.com/itm/264882512556 Is cute, and has a horizon

[Emc-users] New HAL component for testing: sendkeys

After a discussion on the forum I have reintroduced something that was briefly a part of the matrix_kb HAL component: the option to generate system keystrokes in the same way as a standard keyboard does. This currently only really works with the key-up and key-down scancodes generated either by ma

Re: [Emc-users] Sheet metal operations.

On Thu, 4 Feb 2021 at 08:31, John Dammeyer wrote: > I watched a few of the Fellows gear shaper videos. Gave me an idea. I have > an AC servo on the knee. I've thought about adding motion to the quill but I > do like the option for manual operation for some things. > > But how about on the qu

Re: [Emc-users] lathe paths with linux cnc and CAD software

On Wed, 3 Feb 2021 at 21:55, R C wrote: > I know how to code, from micro controller to clusters, but this "g-code > thing" is a different animal. And I imagine, that it would take a lot > of drawing and coding on paper, you know, like the 1970's Univaxes... Not really, you just need to draw

Re: [Emc-users] lathe paths with linux cnc and CAD software

On Tue, 2 Feb 2021 at 18:18, R C wrote: > I have been busy for a while with that pay check thing, and didn't have > much time to look into creating g-code, that I can use in linux cnc > for a lathe. It's worth pointing out that now that LinuxCNC has G71 and G72 you might not need CAM. If you

Re: [Emc-users] lathe paths with linux cnc and CAD software

On Wed, 3 Feb 2021 at 16:48, Bruce Layne wrote: > > once you have tens or > hundreds of designs in their proprietary CAD format, they decide to > unilaterally change the deal and you're trapped. Not just Autodesk, though. Alibre did that to me. -- atp "A motorcycle is a bicycle with a pandemoni

Re: [Emc-users] Sheet metal operations.

On Wed, 3 Feb 2021 at 03:28, John Dammeyer wrote: > > The idea would be to have a CNC controlled tool rotation combined with > > the conventional reciprocation. > Is that what you mean? No. The slotting tool will run up and down continuously on the spindle motor, as usual. But the tool will als

Re: [Emc-users] Sheet metal operations.

On Tue, 2 Feb 2021 at 17:22, John Dammeyer wrote: > What's a CNC slotting head? It's like a slotting head, but CNC :-) The idea would be to have a CNC controlled tool rotation combined with the conventional reciprocation. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is

Re: [Emc-users] Sheet metal operations.

On Tue, 2 Feb 2021 at 10:14, wrote: > http://www.metalsmith.co.uk/rivet-embossing-tool.htm For real rivets I made: http://bodgesoc.blogspot.com/2014/04/hydraulicrivetsqueezer.html -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical

Re: [Emc-users] Sheet metal operations.

On Mon, 1 Feb 2021 at 21:49, John Dammeyer wrote: > Anyway the plan was to at some time create an ELS controlled movable back > fence for the 3:1 tool and an XY movement system for the Arbor press to give > me limited punching capabilities like the attached picture. I have thought that this wo

Re: [Emc-users] Halcompile Quirk

On Tue, 2 Feb 2021 at 01:17, Phill Carter wrote: > It seems to build ok here. Good to know. Which OS / kernel / realtime? -- 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, Atlan

[Emc-users] Halcompile Quirk

I am not currently able to compile userspace comps in-tree on my dev machine. This includes the sample comp on the halcompile manpage (rand.comp) I can compile it OK with plain halcompile, but if I put it in the hal/components directory and then try to build LinuxCNC with "make" I get: /hal/comp

Re: [Emc-users] EDM from scratch

On Mon, 1 Feb 2021 at 09:42, Thomas J Powderly wrote: (Snip the other stuff, all noted) > a use of adaptive feed wull never apprach the needed jittery advance of > edm, adaptive feed never reacts negatively, That is no longer the case. LinuxCNC now supports negative adaptive feed, introduced sp

Re: [Emc-users] EDM from scratch

On Sun, 31 Jan 2021 at 16:06, Jon Elson wrote: > I made a simple EDM for tap burning type jobs a long time > ago. It used something like 36 V DC, 30 Ohm resistor and a > selection of oil-paper capacitors of 1, 2, 4 and 6 uF or > so. A common thread here seems to be that my 1000uF electrolytic i

[Emc-users] EDM from scratch

I have started to play around with EDM. The intention is to make an EDM "grinder" to profile tool steel and possibly carbide cutting tools using CNC-turned profiles. At the moment I am using a cobbled-together XY table with a couple of STMBL drives. One of the STMBL analogue inputs is used to meas

Re: [Emc-users] Another Mesa vhdl question (uart/pktuart)

On Fri, 29 Jan 2021 at 01:24, Ralph Stirling wrote: > > Is there an example comp file illustrating > its use, like mesa_uart.comp? Have a look at: https://github.com/LinuxCNC/linuxcnc/blob/master/src/hal/components/mesa_pktgyro_test.comp -- atp "A motorcycle is a bicycle with a pandemonium at

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

On Wed, 27 Jan 2021 at 21:07, Chris Albertson wrote: > So I ask, Would it be possible to design an easy to make flex gear? I > think so. I am not so sure. In fact I am so not-sure that I am building an EDM grinder to make hardened (or carbide) tooling with the right profile. -- atp "A motorc

Re: [Emc-users] Fanuc Servos?

On Wed, 27 Jan 2021 at 18:11, Todd Zuercher wrote: > > How useable are Fanuc's servos and amps with Linuxcnc? The red-caps are pretty easy, I think. The 4-line commutation signal is handled by a Pico hardware interface, or can be handled in software (the blcd component) and converted to standard

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

On Tue, 26 Jan 2021 at 22:38, Chris Albertson wrote: > > Igus makes 1st rate stuff. ... > My German language skill is minimal > but it appears prices are quoted, not posted online. English: https://www.igus.co.uk/product/20413 (Also available in dozens of other languages by pressing the language

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

On Tue, 26 Jan 2021 at 20:13, Chris Albertson wrote: > Is there a reason you need triangular splines? I think round ones might > work better. They are the best shape for timing pulleys The motion of the flexspline is quite complicated. HD are rather proud of their special profile. Here is the

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

On Tue, 26 Jan 2021 at 17:52, Sam Sokolik wrote: > > andy - that seems like a neat experiment... Do you have an example of the > HD version? Yes, as I said, I own an example of it. https://www.harmonicdrive.net/products/component-sets/pancake/fb-2 -- atp "A motorcycle is a

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