Re: [Emc-users] Harmonic Drive

2021-12-17 Thread andy pugh
On Fri, 17 Dec 2021 at 15:27, Todd Zuercher wrote: > > Andy, Initially I thought what you are saying about the pitch diameters > needing to be the same was true. And that would be the case if all the > pinions had the same tooth count and size. But When I was modeling it I > found that if all

Re: [Emc-users] Choice of CNC conversions

2021-12-24 Thread Andy Pugh
> On 24 Dec 2021, at 10:46, Jérémie Tarot wrote: > > "my" idea along this line would be to develop/document > a set of "reference implementations" There are some case studies in the Wiki. However these are probably rather out of date and are probably not at the level you envisage. http://wi

Re: [Emc-users] Choice of CNC conversions

2021-12-25 Thread andy pugh
On Sat, 25 Dec 2021 at 10:39, andrew beck wrote: > It needs a few things (mainly a jerk control algorithm). And tool > Management stuff. More work offsets etc. You might have missed: http://linuxcnc.org/docs/devel/html/tooldatabase/tooldatabase.html -- atp "A motorcycle is a bicycle with a pa

Re: [Emc-users] Choice of CNC conversions

2021-12-26 Thread Andy Pugh
> On 26 Dec 2021, at 13:44, Mark wrote: > >> stallation or do a number of standard operations. > > Sure. As long as you can guarantee that every single machine manufactured, > designed, built in someones garage or basement will be identical to each and > every other machine out there. To

Re: [Emc-users] Harmonic Drive

2022-01-03 Thread andy pugh
On Mon, 3 Jan 2022 at 08:57, John Dammeyer wrote: > > and then some sort of broaching/indexing to create the two ring gears Have you seen: https://youtu.be/VJOem40ggkI?t=1167 (Home-shop gear skiving) -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especia

Re: [Emc-users] Tormach writing open sorce ROS2/Machiekit/LCNC bridge.

2022-01-04 Thread andy pugh
On Tue, 4 Jan 2022 at 17:41, Robin Szemeti via Emc-users wrote: > > Out of interest, how is PathPilot related to LinuxCNC? It's LinuxCNC with their own GUI on top. But maybe v2.7 as I don't _think_ that they have the joints-axes changes in. -- atp "A motorcycle is a bicycle with a pandemonium a

Re: [Emc-users] CNC controlled, plasma torch

2022-01-08 Thread andy pugh
On Sat, 8 Jan 2022 at 14:27, Robin Szemeti via Emc-users wrote: > > It was some years ago when I tried it, it was fine on thicker sheet, but > not thin sheet, like I said, I expect there have been improvements in the > trajectory planner since then. There have been improvements to the TP and also

Re: [Emc-users] CNC controlled, plasma torch

2022-01-10 Thread andy pugh
On Mon, 10 Jan 2022 at 12:49, Robin Szemeti via Emc-users wrote: > > It's .. hmm ... I think 2.6 ... it was installed about 5 years ago I guess, > and kept up with the occasional apt-get update/upgrade although it probably > hasn't had one in the last year or so. I can check the exact version nex

Re: [Emc-users] OT: mouses

2022-01-10 Thread andy pugh
On Mon, 10 Jan 2022 at 17:14, fxkl47BF--- via Emc-users wrote: > > I'm in the market for a "decent" mouse for cad. I think that any mouse will do. What makes the most difference for CAD is what you have in the other hand. I would now hate to be without my space-mouse for adjusting the viewpoint,

Re: [Emc-users] CNC controlled, plasma torch

2022-01-10 Thread andy pugh
On Mon, 10 Jan 2022 at 14:15, Robin Szemeti via Emc-users wrote: > ... I've just been typing "sudo apt-get update" and "sudo apt-get upgrade" > and letting it do its thing. I assume that it installs the latest available > version for that platform. No, it will install the latest release of that

Re: [Emc-users] OT: mouses

2022-01-10 Thread andy pugh
On Mon, 10 Jan 2022 at 19:04, Eric Keller wrote: > > Does the space mouse work under linux? Good question. apparently some models have a driver: https://3dconnexion.com/uk/drivers/ -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical

Re: [Emc-users] CNC controlled, plasma torch

2022-01-10 Thread andy pugh
On Mon, 10 Jan 2022 at 18:53, Robin Szemeti via Emc-users wrote: > > I'll probably just leave that one alone then, it spends most of its time > cutting aluminium, where it isn't a problem. I'd rather just have it > working than spend too much time re-configuring it. The changes required to go fr

Re: [Emc-users] ER-32 Collet Wrench

2022-01-12 Thread andy pugh
On Wed, 12 Jan 2022 at 08:50, John Dammeyer wrote: > However, I foolishly did not order a collet wrench I have only ever used hook-wrench style ones. It hasn't been a problem. Or CNC then file out the corners of the teeth, by hand. -- atp "A motorcycle is a bicycle with a pandemonium attachme

Re: [Emc-users] Field Oriented Control (FOC) algorithm for BLDC and Stepper motors.

2022-01-12 Thread andy pugh
On Wed, 12 Jan 2022 at 01:28, Chris Albertson wrote: > This library would allow the stepper to be commanded > as if it were a serial interfaced servo motor. In principle so does LinuxCNC HAL and the "bldc" HAL component. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is

Re: [Emc-users] JOG motion inhibit

2022-01-16 Thread andy pugh
On Sat, 15 Jan 2022 at 02:40, Leonardo Marsaglia wrote: > I have a little question about inhibiting jogging motion. I know I can do > that with G CODE but I would like to know if there's an easy way to extend > it to JOG motion. That depends on the source of the jog motion. I don't think that yo

Re: [Emc-users] motor coolant for water cooled spindles.

2022-01-16 Thread andy pugh
On Sun, 16 Jan 2022 at 21:44, gene heskett wrote: > I first started out with rv antifreeze, but it spoiled and jelled solid I think I would be tempted to try the waterless coolant that they sell for cars, though that would depend on how much was needed. It's not cheap. https://motocrossactionmag

Re: [Emc-users] motor coolant for water cooled spindles.

2022-01-18 Thread andy pugh
On Tue, 18 Jan 2022 at 14:18, Todd Zuercher wrote: > > Automotive applications were predominately iron, aluminum, and some plastic > with almost no copper for a very long time before different color antifreezes > became common. Depends on your perspective, there is lots of copper in the engines

Re: [Emc-users] OT: mouses

2022-01-18 Thread andy pugh
On Mon, 10 Jan 2022 at 18:27, fxkl47BF--- via Emc-users wrote: > > Though they are rather expensive if you pay full list price. I think I > > found a good second-hand one. > > Just looking at the prices for those makes my pacemaker work overtime. :) Maybe there is an answer here? https://hackad

Re: [Emc-users] 60's vintage position feedback.. (GE Accupins)

2022-01-21 Thread andy pugh
On Fri, 21 Jan 2022 at 04:50, Sam Sokolik wrote: > > https://www.youtube.com/watch?v=ogUdjX3zerY > > The plan is to use the arduino to count the phase difference between the > input and output. The original control used a 250khz clock frequency to > count You might be able to do a lot better tha

Re: [Emc-users] 60's vintage position feedback.. (GE Accupins)

2022-01-21 Thread andy pugh
On Fri, 21 Jan 2022 at 08:54, andy pugh wrote: > You might be able to do a lot better than that if you can find a way > to have the Arduino set timers on interrupts. > (How fast does the Arduino run a polling loop?) I haven't watched the video yet (I am in a meeting :-) but I a

Re: [Emc-users] rotary table re-engineeering

2022-01-21 Thread andy pugh
On Fri, 21 Jan 2022 at 15:15, fxkl47BF--- via Emc-users wrote: > I recently acquired a Palmgren 800 rotary table for a faction of this cost. > I would like to modify it to mount horizontally or vertically on a small mill. > I'm open to suggestion before I start hacking. I think that I would look

Re: [Emc-users] UI options for small screen

2022-01-22 Thread andy pugh
On Sat, 22 Jan 2022 at 06:00, Thaddeus Waldner wrote: > I’d be happy with the gmoccapy UI but it simply doesn’t fit on the screen. My > plan for now is to edit it and remove some of the manual control elements. > Any suggestions? Try Gscreen, it is designed for editability. Do you really mean

Re: [Emc-users] rotary table re-engineeering

2022-01-22 Thread andy pugh
On Fri, 21 Jan 2022 at 16:25, fxkl47BF--- via Emc-users wrote: > Making a new dovetailed back plate was what I was leaning towards. > Any suggestion for material for this? > A big slab of cast iron would be nice but I imagine but too pricey. Well, I would 3D print a pattern and have it cast in i

Re: [Emc-users] rotary table re-engineeering

2022-01-22 Thread andy pugh
On Sat, 22 Jan 2022 at 18:53, fxkl47BF--- via Emc-users wrote: > Now just to get it shipped to southern US :) > Actually there is a foundry not to far from me, Windy Hill Foundry. Yes, if you are near Windy Hill, then I understand that they do a lot of one-offs for vehicle restorers etc. It's c

Re: [Emc-users] UI options for small screen

2022-01-22 Thread andy pugh
On Sat, 22 Jan 2022 at 12:37, Thaddeus Waldner wrote: >Is it possible to modify Gscreen and remove/hide buttons and other features in >a way that will not be reversed with updates? Gscreen is more of a framework for UI designing than a GUI, as I understand it. https://linuxcnc.org/docs/2.8/html

Re: [Emc-users] rotary table re-engineeering

2022-01-23 Thread andy pugh
On Sun, 23 Jan 2022 at 02:26, fxkl47BF--- via Emc-users wrote: > So from the photos in the ad what would I want to have made? > A big rectangle? Something stylish and in-keeping with the original, I would think. Certainly a block thick enough to keep the lowest point of the main casting clear of

Re: [Emc-users] rotary table re-engineeering

2022-01-23 Thread andy pugh
On Sun, 23 Jan 2022 at 18:59, Chris Albertson wrote: > But this is for a "*mini*-mill" you do NOT need cast iron parts. He said it was a "small mill". Many would consider a Bridgeport to be a small mill. I certainly consider my Harrison to be small, but it weighs nearly a ton. But, making patt

Re: [Emc-users] rotary table re-engineeering

2022-01-23 Thread andy pugh
On Sun, 23 Jan 2022 at 23:30, fxkl47BF--- via Emc-users wrote: > It looks like Palmgren had a passel of those. > https://vintagemachinery.org/pubs/2459/16973.pdf Page 14 shows a base design that could be copied. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed fo

Re: [Emc-users] 60's vintage position feedback.. (GE Accupins)

2022-01-23 Thread andy pugh
On Sat, 22 Jan 2022 at 04:49, Chris Albertson wrote: > > Arduino? Too slow to coune pulses if they happen every 0.0001 inch unless > the table moves slow. As long as it gets a couple of samples every 0.1" it should be fine. Between the pins it's an absolute encoder, like a multi-turn resolver.

Re: [Emc-users] BSPI man pages reference in documentation for mesa and hostmot2

2022-01-26 Thread andy pugh
On Wed, 26 Jan 2022 at 23:36, John Figie wrote: > *1) what must I do to see these bspi man pages?* Wel, they _should_ show up here at the bottom under "Hostmot2 API Calls" https://linuxcnc.org/docs/2.8/html/ But they don't. Oddly. They do appear in the old docs. https://linuxcnc.org/docs/2.7/htm

Re: [Emc-users] BSPI man pages reference in documentation for mesa and hostmot2

2022-01-26 Thread andy pugh
On Wed, 26 Jan 2022 at 23:36, John Figie wrote: > *3) in the 7i65 component there are some lines that refer to RTAPI but in > my case I am planning on using the PREEMPT RT enabled kernel. Does the > component work with either?* The RTAPI is a wrapper that supplies a uniform interface (API) for a

Re: [Emc-users] miniature taper-lock type pulleys

2022-01-27 Thread andy pugh
On Thu, 27 Jan 2022 at 04:49, Ralph Stirling wrote: > I got to wondering if it > would be possible to make a miniature taper lock > type bushing and pulley to clamp onto a stepper > shaft. Anybody ever seen anything like that? I have designed and used a few options. Trantorque are great, but

Re: [Emc-users] buildbot key contains no user id

2022-01-27 Thread andy pugh
On Thu, 27 Jan 2022 at 11:06, Valerio Bellizzomi wrote: > Can you give me the URL for the hostmot firmware too? Do you want the binaries or the (very out of date) version of the source hosted by LinuxCNC? -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the e

Re: [Emc-users] buildbot key contains no user id

2022-01-27 Thread andy pugh
On Thu, 27 Jan 2022 at 13:45, Valerio Bellizzomi wrote: > the binaries ready to install, thank you Andy. Go to store.mesanet.com, find your card then click the "Specification" tab. For some opaque reason this is where the firmware download link is. -- atp "A motorcycle is a bicycle with a pand

Re: [Emc-users] Qtpyvcp error

2022-01-27 Thread andy pugh
On Wed, 26 Jan 2022 at 18:26, Valerio Bellizzomi wrote: > > , I > would need an ISO for master branch, how do I get it if it is > available? There isn't an ISO for master, as it hasn't been released. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especia

Re: [Emc-users] miniature taper-lock type pulleys

2022-01-27 Thread andy pugh
On Thu, 27 Jan 2022 at 16:24, dave engvall wrote: > I use the mini 5/8" fits the SEM servo motors I use. The problem with trantorque comes if you want a very small motor pulley. What I have done in that situation when there is a thread in the end of the motor shaft, (in addition to the thing

Re: [Emc-users] mesa 7i80 configuration

2022-01-27 Thread andy pugh
On Thu, 27 Jan 2022 at 21:42, John Figie wrote: > hm2: Firmware contains unknown function (gtag-7) GTAG 7 is SPI: https://github.com/LinuxCNC/linuxcnc/blob/master/src/hal/drivers/mesa-hostmot2/hostmot2.h#L94 Do you need SPI? -- atp "A motorcycle is a bicycle with a pandemonium attachment and

Re: [Emc-users] Axis configuration error

2022-01-30 Thread andy pugh
In the debug output I see: HAL: ERROR: duplicate variable 'pyvcp.spindle-speed' But don't see that in any of the HAL files that you have supplied. Do you have a .axisrc file? I see some vaguely unfamiliar output after Axis loads too. -- atp "A motorcycle is a bicycle with a pandemonium attachm

Re: [Emc-users] motherboard that plays well with 7i43

2022-01-30 Thread andy pugh
On Fri, 28 Jan 2022 at 18:18, dave engvall wrote: > I'm looking for users that are actually using a motherboard with a 7i43 > and can recommend candidate boards from experience. Thanks in advance. I used one for a while with an old Xeon server board, and have one on my Core i5 test machine. I d

Re: [Emc-users] motherboard that plays well with 7i43

2022-01-30 Thread andy pugh
On Fri, 28 Jan 2022 at 19:20, Chris Albertson wrote: > I was thinking of using the Ethernet interface Mesa board but then read it > needs a dedicated Ethernet port in the host PC. This means buying, > installing, and configuring an Ethernet card. The PC or any PC today > already has half a d

Re: [Emc-users] Stepper PID

2022-02-02 Thread andy pugh
On Wed, 2 Feb 2022 at 07:44, Thaddeus Waldner wrote: > 2) why is servo thread jitter even making into the stepper pulse train with a > Mesa Ethernet card and no communication errors? Do I have anything > misconfigured? The idea of using a PID is that it compensates for the fact that the servo

Re: [Emc-users] 2.8 or 2.9?

2022-02-02 Thread andy pugh
On Wed, 2 Feb 2022 at 05:38, Andy Howell wrote: > I maintain a gantry style CNC router for our high school robotics team. > Tonight our hard disk died. I need to decide what version to install. > From reading the list, it looks like 2.9 is close to release. My > preference would be to go with t

Re: [Emc-users] Stepper PID

2022-02-02 Thread andy pugh
On Wed, 2 Feb 2022 at 14:22, Thaddeus Waldner wrote: > Here is a short video that illustrates the problem. > https://youtu.be/DdYYpdC51Vs Admittedly I watched it with the sound off, but the P=100 looks "softer". Maybe try going back to P=1000 but drop the axis, joint and stepgen maxaccel down a

Re: [Emc-users] Mini-itx 64bit mother board with parallel port

2022-02-02 Thread andy pugh
On Wed, 2 Feb 2022 at 21:45, Andy Howell wrote: > Any suggestions for a 64bit mini-itx motherboard? Where are you? Try the board finder here: https://www.mini-itx.com/store/category?type=motherboard The left hand column lets you filter for p-port or p-port header at the bottom. Don't select bo

Re: [Emc-users] Mini-itx 64bit mother board with parallel port

2022-02-03 Thread andy pugh
On Thu, 3 Feb 2022 at 02:11, Chris Albertson wrote: > > I followed that link.Wow, that is a good deal. Especially when you > look at the power supply. It uses a 12 volt barrel jack and a large size > wall-wort. The CPU burns all of 6 Watts.It could run on battery power. If I was shop

Re: [Emc-users] Mini-itx 64bit mother board with parallel port

2022-02-03 Thread andy pugh
On Thu, 3 Feb 2022 at 15:28, dave engvall wrote: > At first glance it looks pretty good but lacks pci slots unless my eyes > have fully given out. > Ditto on disk interface. Assuming you mean https://www.onlogic.com/pd14ri/ It has 2 x SATA connectors and 1 x PCIe (so a Mesa 6i25 would fit) --

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

2022-02-05 Thread andy pugh
On Sat, 5 Feb 2022 at 12:34, Stuart Stevenson wrote: > > Guys, > Causing me to 'think' this early hurts my head but I need to express this > thought. It may be totally crazy but is there a way to 'double wind' a > motor to cancel/use the back emf? Yes, absolutely. Unfortunately this also cancels

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

2022-02-05 Thread andy pugh
On Sat, 5 Feb 2022 at 20:24, Nicklas SB Karlsson wrote: > > Anybody know about a method to execute a MDI command with g-code then on > a hal pin flank? What is the MDI_COMMAND? I think that if it is pure G-code then it can be an OCALL and you can use that same format in your G-code. Alternative

Re: [Emc-users] Trouble with arc error

2022-02-07 Thread andy pugh
On Mon, 7 Feb 2022 at 05:12, Andy Howell wrote: > > We had been cutting with the same gcode when suddenly it came up with an > error: > > Radius to end of are differs from radius to start: Have you accidentally switched between G90.1 and G91.1 ? -- atp "A motorcycle is a bicycle with a pandemon

Re: [Emc-users] Trouble with arc error

2022-02-07 Thread andy pugh
On Mon, 7 Feb 2022 at 10:10, andy pugh wrote: > Have you accidentally switched between G90.1 and G91.1 ? Forget that, I see that you have an explicit G91.1 in the code. I suspect that you have accidentally introduced a Y _tool_ offset during touch-off, touching off the tool rather than

Re: [Emc-users] Trouble with arc error

2022-02-07 Thread andy pugh
On Mon, 7 Feb 2022 at 17:55, Andy Howell wrote: > I issued a G91.1 in the MDI as well. I also deleted moved emc.var to > make sure it wasn't picking anything up from there. There was nothing > suspicious in there though. I don't think there are any other files that > its stores state in, is ther

Re: [Emc-users] Trouble with arc error

2022-02-07 Thread andy pugh
On Tue, 8 Feb 2022 at 00:30, Andy Howell wrote: > What I still don't understand is how it got set. We don't use the tool > table. We manually touching off the Z. It's easy to touch-off the wrong dimension. Perhaps someone, at some point, jogged in Y just before touching-off. That sets Y as acti

Re: [Emc-users] Trouble with arc error

2022-02-08 Thread andy pugh
On Tue, 8 Feb 2022 at 02:57, Andy Howell wrote: > Maybe I'll set it up so when LinuxCNC > starts, the tool table gets initialized with with just tool and pocket > numbers. ... > The init.ngc file does: ... >G10 L2 P2 X0.484313 Y1.739985 ( Set jig offsets in G55 ) You can add G10 L1 P1 X0 Y0

Re: [Emc-users] Probably a silly question about G76 and G33

2022-02-09 Thread andy pugh
On Wed, 9 Feb 2022 at 15:01, Leonardo Marsaglia wrote: > I double checked my spindle.0.revs and went up to 1 for a full revolution > and then resets to 0 to start over again. (positive values for clockwise > rotation). It sounds like something is resetting the spindle-index-enable bit for you.

Re: [Emc-users] Setting up isolated spindle pot replacement

2022-02-09 Thread andy pugh
On Tue, 8 Feb 2022 at 20:05, andrew beck wrote: > Does anyone know how to set up the spinx1 cards I have a spare here. What > card Do I connect it up to? You can connect it to anything that outputs PWM. Including the parallel port (I think, it might not be very good at P-port PWM frequencies)

Re: [Emc-users] IJK vs R

2022-02-09 Thread andy pugh
On Wed, 9 Feb 2022 at 19:30, dave engvall wrote: > > Hi, > It would appear that the 'easy' way to compare the two methods would be > to use sim or usrspace. That would get it plotted but I doubt the > differences, unless gross, would be easily detectable on a plot. Thde docs state that a 7% dif

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

2022-02-10 Thread andy pugh
On Thu, 10 Feb 2022 at 03:04, andrew beck wrote: > > Its just kinda hard to ship to New Zealand from UK. > Anyone got a oceania source or asia Mini-itx is just a motherboard standard. mini-itx.com just happens to be a UK supplier. I often suggest using their board finder, but then you can hopefu

Re: [Emc-users] Mini-ITX PD12ri horrible jitter

2022-02-11 Thread andy pugh
On Sat, 12 Feb 2022 at 00:07, Andy Howell wrote: > Its no pretty. Jitter is about 8. I had a look through bios > settings, but nothing jumped out at me. > > Any ideas to improve it? Which realtime system did you use? (at a guess, preempt-rt?) Are you planning to use the parallel port? If

Re: [Emc-users] need gcode maker

2022-02-21 Thread andy pugh
On Sun, 13 Feb 2022 at 16:58, gene heskett wrote: > Does anyone else have a better idea? For a simple thread? I would just hand-code a G76. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — G

Re: [Emc-users] need gcode maker

2022-02-21 Thread andy pugh
On Mon, 21 Feb 2022 at 17:33, gene heskett wrote: > G76 isn't terrible handy for a buttress thread being carved on a hard > maple stick 20" long for a woodworking vise, turned by a B axis, with the > 24k rev spindle doing the carving while y is being advanced by the pitch > per rev. OK, in that

Re: [Emc-users] FW: [MachCNC] Mach4 teach/record

2022-02-21 Thread andy pugh
On Mon, 21 Feb 2022 at 19:09, John Dammeyer wrote: > My wired pendant like the one in the video works great. But I'm not sure how > that's relevant to my question with respect to someone wanting 4 rotary axis > that currently doesn't exist in MACH4 I don't think it matters all that much if an

Re: [Emc-users] FW: [MachCNC] Mach4 teach/record

2022-02-22 Thread andy pugh
On Tue, 22 Feb 2022 at 18:01, Chris Albertson wrote: > That is the big advantage of open source. But the problem is running it on > an antique computer using a modified OS I have rarely run LinuxCNC on an antique computer. Most of my installations have been on brand-new hardware. Although the

Re: [Emc-users] FW: [MachCNC] Mach4 teach/record

2022-02-23 Thread andy pugh
On Wed, 23 Feb 2022 at 04:46, Ralph Stirling wrote: > The sserial i/o has some limitations > on speed and is best suited to pendants and coolant or tool changer > type use. I don't think that this is true. I have been using sserial-connected servo drives for 10 years or more. (8i20) Have you no

[Emc-users] F-Engrave and LinuxCNC scripting

2022-02-23 Thread andy pugh
So, have a spreadsheet of words to be engraved on several dozen identical parts. I am pretty sure that I can write a Python script to convert the words to G-code using F-engrave in batch mode (I have done it from the CL, so Python parsing CSV would just be a layer on top of that). But what's the

Re: [Emc-users] F-Engrave and LinuxCNC scripting

2022-02-23 Thread andy pugh
On Wed, 23 Feb 2022 at 16:36, Ralph Stirling wrote: > > Are you going to engrave one part at a time One at a time. Each has a specific front and back (name on the front, nickname on the back) so it's important to ensure they match. -- atp "A motorcycle is a bicycle with a pandemonium attachmen

Re: [Emc-users] F-Engrave and LinuxCNC scripting

2022-02-23 Thread andy pugh
On Wed, 23 Feb 2022 at 17:58, mar...@r-bechtold.de wrote: > > in the past I programmed single letters as gcode. Yes, I have done the same thing for numbers to engrave scale rings. This time I am using F-engrave and a cxf font that I created specifically for the job at hand. (CXF is easy, just a

Re: [Emc-users] F-Engrave and LinuxCNC scripting

2022-02-24 Thread andy pugh
On Thu, 24 Feb 2022 at 01:42, Ralph Stirling wrote: > > If you wanted totally automated, you could use linuxcncrsh. I don't think that linuxcncrsh is appropriate here, that is for remote connection. I would plan on running the controlling script on the actual controller PC. It looks like what I

Re: [Emc-users] Auxiliary axis DRO only

2022-02-24 Thread andy pugh
On Thu, 24 Feb 2022 at 17:44, Thaddeus Waldner wrote: > Can anyone point me to a working example of this, or maybe point out what I > need to do with homing? Set HOME_SEARCH_VELOCITY to zero and it will home to zero wherever it is (ie, without attempting to move) You also need to add a HOME_SEQ

Re: [Emc-users] Auxiliary axis DRO only

2022-02-25 Thread andy pugh
On Fri, 25 Feb 2022 at 05:12, Ralph Stirling wrote: > > You don't need a joint at all. You can just have an encoder > channel that doesn't connect to any joint. True, though there is something to be said for having a dummy axis just so that the LinuxCNC GUI will display the encoder position. Yo

Re: [Emc-users] Couple Q's re 4th axis on a mill.

2022-02-25 Thread andy pugh
On Fri, 25 Feb 2022 at 15:19, gene heskett wrote: > Out of the alphabet of ABCUVW, which is the proper axis to call it? If it is a rotary axis with an axis along Y then it is typically called "B". > And, does this change the kinematics module which is trivkins now? Probably not. It sounds like

Re: [Emc-users] Custom m codes

2022-02-28 Thread andy pugh
On Mon, 28 Feb 2022 at 10:51, andrew beck wrote: > > I want to issue a m102 > > And get this code run > > S5m3 > Halcmd setp hm2 7i77etc pin output on This is slightly tricky, as you want to both issue a G-code command and a Halcmd command. I think you need to do a G-code remap to create a new

Re: [Emc-users] Auxiliary axis DRO only

2022-02-28 Thread Andy Pugh
> On 26 Feb 2022, at 04:36, Thaddeus Waldner wrote: > > Anything else I can try? How about a Python HAL component that logs encoder position (on a HAL pin) to file when a trigger pin goes high? As it would be a user space component you would need a “handshake” in the G-code. Ie a log / logg

Re: [Emc-users] Q for Peter?

2022-03-01 Thread andy pugh
On Tue, 1 Mar 2022 at 16:25, Peter C. Wallace wrote: > Not with firmware but you could replace the low side resistor network on the > first 4 inputs with say 22K (was 1.8K) to get about a 5V full scale range Or, less intrusively, boost the signal with an Op-Amp powered from the field power? --

Re: [Emc-users] Recommendations for touch pad to replace mouse

2022-03-01 Thread andy pugh
On Mon, 28 Feb 2022 at 21:44, Ed wrote: > > Title says most of it. For most commands I use the keyboard for the > speed but changing the tooltable and a couple of other things I like to > use a touchpad. I use a touchscreen, and then in a holster in the side of the machine I have an older version

Re: [Emc-users] Is there a better way - G76 for plain bearing lubricating grooves

2022-03-01 Thread andy pugh
On Tue, 1 Mar 2022 at 22:59, Peter Hodgson wrote: > The problem is that the spindle, run via a VFD needs to turn at only 50 > RPM to be able to have enough velocity on the Z stepper to achieve the > correct pitch and the spindle doesn't seem to be stable enough or have > enough torque at those re

Re: [Emc-users] talking to myself

2022-03-02 Thread andy pugh
On Wed, 2 Mar 2022 at 08:27, gene heskett wrote: > So, can I start at y=0 b=0 and run to y=457.2 b=20574 in one gcode move? Yes. -- 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

Re: [Emc-users] Pi4 with LinuxCNC and MESA 7i92H

2022-03-06 Thread andy pugh
On Sun, 6 Mar 2022 at 19:22, Robin Szemeti via Emc-users wrote: > > Have you succesfully got the USB3 adapter to work with the Pi? If so, what > make/model is it, Do you want USB to ethernet or USB to unspecified network? I have several USB - Wifi things that work, but I am not sure that I have

Re: [Emc-users] step/dir driven spindle and rigid tapping

2022-03-06 Thread andy pugh
On Sun, 6 Mar 2022 at 22:31, Ralph Stirling wrote: > plain parallel port stepper control. I'm setting up the > spindle as step/dir, since he doesn't have analog output. > He especially wants to be able to do rigid tapping. > > I believe I can use the stepgen counts or position-fb > in place of a

Re: [Emc-users] nother q re sensors

2022-03-07 Thread andy pugh
On Mon, 7 Mar 2022 at 02:08, gene heskett wrote: > The thread is not a tapered thread, measureing 12.95mm in the threads > major diameter, and quite close to 1mm pitch, maybe .98mm? If the measurements are correct then it is not BSP either. https://en.wikipedia.org/wiki/British_Standard_Pipe (Wh

Re: [Emc-users] Laser measurement sensor

2022-03-07 Thread Andy Pugh
> On 7 Mar 2022, at 17:47, Thaddeus Waldner wrote: > > I’m looking for a laser distance sensor with about 1-3 thousandths resolution > and about a 5-10” working range. > I wouldn’t mind buying a used unit. I think that some replies are being overly pessimistic https://www.micro-epsilon.com/d

Re: [Emc-users] Laser measurement sensor

2022-03-08 Thread andy pugh
On Mon, 7 Mar 2022 at 17:47, Thaddeus Waldner wrote: > Does anyone here know of some brands/ models to check out? I don't know if my reply got through. Look at micro-epsilon. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical gen

Re: [Emc-users] Laser measurement sensor

2022-03-08 Thread andy pugh
On Tue, 8 Mar 2022 at 14:31, Thaddeus Waldner wrote: > Now I need to get this signal into LinuxCNC. I think the MESA THCAD device > would work, though it’s a bit overkill. Does MESA have other 1 or 2-channel > A-D options, perhaps without the high voltage protection? Many of the Mesa boards ha

Re: [Emc-users] Black screen after Grub on fresh buster install

2022-03-09 Thread andy pugh
On Tue, 8 Mar 2022 at 22:43, Leonardo Marsaglia wrote: > I'm installing the buster ISO with LinuxCNC on it on a new machine (this is > for the router) and after the grub menu I get some loading messages and > then a black screen with a blinking cursor. I think I heard that waiting a long time (h

Re: [Emc-users] pressure sensor?

2022-03-10 Thread andy pugh
On Thu, 10 Mar 2022 at 13:00, gene heskett wrote: > But neither of the $23 sensors I bought, actually works. black to -, red > to 5v, green to dvm on my test table, one rests at nominally 1 millivolt, > the other at around 27 millivolts which doesn't change with the applied > pressure. What are

Re: [Emc-users] math challenged Q

2022-03-12 Thread andy pugh
On Sat, 12 Mar 2022 at 03:44, gene heskett wrote: > The max radius the corners of that stick, as its turned, ought to be some > figure plus the 26 starting point when the square has been turned 45 > degrees, The diagonal of a square is just sqrt(2) x the edge. (this follows from Pythagoras, but

Re: [Emc-users] Carousel. ordinary encoder as sensor, comments on improvements?

2022-03-16 Thread andy pugh
er numbers)"; pin out bitmotor-rev "Indicates the motor should run reverse."; pin out bitparity-error "Indicates a parity error"; pin out signed current-position "This pin indicates the current position feedback"; pin out float motor_vel "The duty-cy

Re: [Emc-users] Carousel. ordinary encoder as sensor, comments on improvements?

2022-03-17 Thread andy pugh
On Thu, 17 Mar 2022 at 16:34, Peter Hodgson wrote: > I will shortly be attempting an LCNC retrofit on an Emco 320 and was > wondering how I was going to manage the toolchanger. I think this will really > help. I think that the Emco toolchanger was already supported, actually. It's an index slo

Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

2022-03-18 Thread andy pugh
On Fri, 18 Mar 2022 at 03:11, Sam Sokolik wrote: > > https://www.youtube.com/watch?v=mes7pFZ90Fg If you fitted linear scales you could potentially have manual rapids by disengaging the half-nuts. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial

Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

2022-03-21 Thread andy pugh
On Mon, 21 Mar 2022 at 13:53, Leonardo Marsaglia wrote: > > Sam, have you had to soften the final portion of the ballscrew to machine > that thread? I've never done it and the ones I'm mounting in the router are > fixed (rotating nut). I have machined a number of ballscrews. Typically I peel of t

Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

2022-03-21 Thread andy pugh
On Mon, 21 Mar 2022 at 12:23, Sam Sokolik wrote: > > Dad ground the ball screw nut. Inventive :-) I have used the RSH style a couple of times now. http://www.gtenballscrew.com.tw/Page/Product/ProductDetail.aspx?ProductCategoryNo=123&ProductNo=15 Odd that the 16mm is smaller than the 12mm, but th

Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

2022-03-21 Thread andy pugh
On Mon, 21 Mar 2022 at 16:03, dave engvall wrote: > In line with the nebel prize: the machine should be a very light grey > and your hand should pass thru it easily. ;-) Nebel = fog. Indeed. The Germans don't call it "mist" :-) -- atp "A motorcycle is a bicycle with a pandemonium attachment a

Re: [Emc-users] buildbot apt-key?

2022-03-21 Thread andy pugh
On Mon, 21 Mar 2022 at 19:27, gene heskett wrote: > How do I get and install the buildbot's apt-key EF1B07FEE0EE663E ? Do the instructions on the buildbot page not work? http://buildbot.linuxcnc.org -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especi

Re: [Emc-users] build problem on buster

2022-03-23 Thread andy pugh
On Tue, 22 Mar 2022 at 14:55, gene heskett wrote: > When that error was generated, .configure uspace had been run, which > supposedly should have canceled the run-in-place. I don't think so. Building LinuxCNC creates a run-in-place unless you pass it an install location (which is deprecated as t

Re: [Emc-users] build problem on buster

2022-03-23 Thread andy pugh
On Wed, 23 Mar 2022 at 12:14, gene heskett wrote: > cd /media/pi/workspace/buster-linuxcnc/debian > ./configure uspace I think that debian/configure ignores "uspace" https://github.com/LinuxCNC/linuxcnc/blob/cd053635eafb7963a0f66836acf30d87b2102d1c/debian/configure#L48 From the linuxcnc-dev fol

Re: [Emc-users] build problem on buster

2022-03-23 Thread andy pugh
On Wed, 23 Mar 2022 at 13:50, Mark Wendt wrote: > ./configure --help should give you all the options for that particular > version of configure. andypugh@buster:~/linuxcnc-dev$ ./debian/configure --help configure: Set up debian/ files to build for a particular kernel Usage: configure uspace

Re: [Emc-users] build problem on buster

2022-03-23 Thread andy pugh
On Wed, 23 Mar 2022 at 17:57, gene heskett wrote: > dd installed an early 2019 buster image to a 64G u-sd card. I have had much better luck with the Pi imager for getting the ISO onto an SD. https://www.raspberrypi.com/software/ Maybe try the 64-bit Buster / LinuxCNC image here: https://drive.

Re: [Emc-users] Thoughts / Recommendations on spindle drive and motor

2022-03-24 Thread andy pugh
On Thu, 24 Mar 2022 at 17:16, John Figie wrote: > > 1) Keep the 5HP motor and use a VFD to run the motor faster to get my 2000 > spindle speed? 2000 * 47/30 = 3133 RPM. I don't have much experience with > induction motor drives. Is is feasible to run my motor at nearly double it > rated speed? Ye

Re: [Emc-users] Probing

2022-03-26 Thread andy pugh
On Sat, 26 Mar 2022 at 06:14, Thaddeus Waldner wrote: > I imagine that I should write the probing routine in g-code and run it at > the push of the button … somehow. Have a look at MDI_COMMAND in the INI config. There are a set of input pins that will trigger a line of G-code when toggled. Y

Re: [Emc-users] Homebuilt encoder

2022-03-27 Thread Andy Pugh
> On 27 Mar 2022, at 08:09, andrew beck wrote: > > And is bigger dia better for higher resolution? Probably not, as it will perhaps have more scope to oscillate at 10,000 rpm. Don’t neglect the purely mechanical design of this fast-spinning part. Have you considered optical sensors rather

Re: [Emc-users] Probing

2022-03-27 Thread Andy Pugh
> On 28 Mar 2022, at 00:26, Thaddeus Waldner wrote: > > I was able to get this working. Thanks for the help. I ended up using a macro > and modifying G54 Z offset If you use G10 then it will use the current coordinate system. G10 is almost always the correct in to use for this. _

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