Re: [Emc-users] driver for a DC motor for a BS-1.

2020-11-12 Thread Gene Heskett
On Thursday 12 November 2020 20:50:10 Dave Cole wrote: > Gene, > > Where did you buy that H bridge board ?  Ebay ? > > Dave Yes, Thats a BTS7960 board. I tried it out tonight, ran the motor at about half speed for about half an hour. No detectable heating of the motor or the device. Running on

Re: [Emc-users] Named subroutines

2020-11-12 Thread ken.strauss
In a program or even from the MDI. I use the capability to do probing. -Original Message- From: Ralph Stirling Sent: November 12, 2020 5:43 PM To: emc-users@lists.sourceforge.net Subject: [Emc-users] Named subroutines I was reading the docs on remapping, and got to wondering if the o ca

Re: [Emc-users] driver for a DC motor for a BS-1.

2020-11-12 Thread Chris Albertson
I always suggest that people buy stuff the first few times from a supplier who can offer technical support or at least technical documents and one who is at least on the same continent as you. These guys are the best. Notice they have three tables for low, medium, and high power drivers. And if

Re: [Emc-users] Named subroutines

2020-11-12 Thread Ralph Stirling
Ok, I'm glad to know it is an intended feature, if undocumented. I did find a brief discussion on the forum from a decade ago, but it would be nice to get it into the current docs. https://forum.linuxcnc.org/20-g-code/3121-o-words-to-open-files My other problem was a simple typo in the PROGRAM_P

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Chris Albertson
Python is an interpreted language. You don't "build" it. It should run on any computer that has a python interpreter. But be warned, pycam can eat up a lot of CPU cycles so you'd want to run it on whichever computer is the fastest. I hope your fastest computer is not a Pi4. But it should work

Re: [Emc-users] driver for a DC motor for a BS-1.

2020-11-12 Thread Dave Cole
Gene, Where did you buy that H bridge board ?  Ebay ? Dave On 11/9/2020 5:15 PM, Gene Heskett wrote: On Wednesday 28 October 2020 16:02:51 Gene Heskett wrote: On Wednesday 28 October 2020 14:30:39 Chris Albertson wrote: I bit of information from Polulu's web site. They say.. "*While VNH3S

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Andy Pugh
> On 13 Nov 2020, at 00:47, Gene Heskett wrote: > > Will it build and run on the armhf? Or am I the designated lab rat? It’s Python. It should run just about anywhere. I used to run it in my Mac. ___ Emc-users mailing list Emc-users@lists.sourcefor

Re: [Emc-users] Named subroutines

2020-11-12 Thread Gene Heskett
On Thursday 12 November 2020 17:42:44 Ralph Stirling wrote: > I was reading the docs on remapping, and got to > wondering if the o call syntax > discussed in: > http://linuxcnc.org/docs/html/remap/remap.html > could be used directly in G-code programs. I would > really rather put: > > o call 1 2

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Gene Heskett
On Thursday 12 November 2020 16:39:19 Gregg Eshelman via Emc-users wrote: > A Google for get dimensions from stl file shows there's many ways to > do that. On Thursday, November 12, 2020, 11:35:23 AM MST, Gene Heskett > wrote: > > On Thursday 12 November 2020 12:38:19 John Dammeyer wrote: > > Mi

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Gene Heskett
On Thursday 12 November 2020 15:38:04 andy pugh wrote: > On Thu, 12 Nov 2020 at 18:35, Gene Heskett wrote: > > How do I make that .stl into gcode to drive one of my mills? > > How do you normally make G-code? In nano or geany, from my wet ram. The only helper I regularly use is arcgenm18.py an

Re: [Emc-users] Named subroutines

2020-11-12 Thread andy pugh
On Fri, 13 Nov 2020 at 00:19, Ralph Stirling wrote: > > I was reading the docs on remapping, and got to > wondering if the o call syntax > discussed in: > http://linuxcnc.org/docs/html/remap/remap.html > could be used directly in G-code programs. Yes. Though oddly the docs don't mention it in the

[Emc-users] Named subroutines

2020-11-12 Thread Ralph Stirling
I was reading the docs on remapping, and got to wondering if the o call syntax discussed in: http://linuxcnc.org/docs/html/remap/remap.html could be used directly in G-code programs. I would really rather put: o call 1 2 3 in my program than remap M100 to make that call, and then put: M100 A1

Re: [Emc-users] canned cycles

2020-11-12 Thread Gene Heskett
On Thursday 12 November 2020 13:19:25 R C wrote: > On 11/12/20 11:07 AM, andy pugh wrote: > > On Thu, 12 Nov 2020 at 18:01, R C wrote: > >> So I watched some videos with some simple examples, but when I try > >> running them in axis, it complains about "unknown g-code used. > > > > G71 and G72 ar

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Gene Heskett
On Thursday 12 November 2020 13:19:21 Chris Albertson wrote: > Yes, this is in line with my suggestions to design based on the > materials you are using. Countersinks have more bearing surface and > are stronger in plastic than counterbores but MORE IMPORTENTLY a > countersink can be printed upsi

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Gene Heskett
On Thursday 12 November 2020 13:09:43 Chris Albertson wrote: > You can not print over the top of air. If there is an overhang you > need to enable "support" in Cura. If you do then Cura will print some > removable structure under the overhang. > > Most people when they design parts try to desig

Re: [Emc-users] Velocity fluctuating, when I try to jog the machine

2020-11-12 Thread Peter C. Wallace
Any ideas about those oscillations? Viesturs Can you post your hal/ini files? Peter Wallace Mesa Electronics ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Gregg Eshelman via Emc-users
A Google for get dimensions from stl file shows there's many ways to do that. On Thursday, November 12, 2020, 11:35:23 AM MST, Gene Heskett wrote: On Thursday 12 November 2020 12:38:19 John Dammeyer wrote: > Mill it out of aluminium.  Counter bores for the screws.  Total time > spent wi

Re: [Emc-users] Velocity fluctuating, when I try to jog the machine

2020-11-12 Thread Viesturs Lācis
I see that with keyboard buttons. I will try to wire something to 7i96 inputs and use it as jog signal. I will return there next week. Any ideas about those oscillations? Viesturs ceturtd., 2020. g. 12. nov., plkst. 22:39 — lietotājs andy pugh () rakstīja: > > On Thu, 12 Nov 2020 at 20:21, Viest

Re: [Emc-users] Velocity fluctuating, when I try to jog the machine

2020-11-12 Thread andy pugh
On Thu, 12 Nov 2020 at 20:21, Viesturs Lācis wrote: > Now that I think about it, when I > jog the machine and release the arrow key, it continues for at least > full second, if not more, before it actually starts to decelerate. Do you see that with physical jog buttons? I am trying to work out if

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread andy pugh
On Thu, 12 Nov 2020 at 18:35, Gene Heskett wrote: > How do I make that .stl into gcode to drive one of my mills? How do you normally make G-code? -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Chris Albertson
You can convert an STL file back to a 2d CAD file but it requires some hand work and reverse engineering. It is not hard for a human to see a counter sunk screw hole and know it is a hole for an M4 CC screw but the software just sees 5,000 triangles. So it can't be automated but it is not hard t

Re: [Emc-users] Velocity fluctuating, when I try to jog the machine

2020-11-12 Thread Viesturs Lācis
Hello! I did that. Long story short, the problem is still there. The motion is still not smooth, it is oscillating the machine. Any ideas, what to look for? Could it be related to overall performance of PC? I have got "unexpected realtime delay" warning message with standart 1ms servo thread perio

Re: [Emc-users] canned cycles

2020-11-12 Thread R C
On 11/12/20 12:32 PM, andy pugh wrote: On Thu, 12 Nov 2020 at 18:56, R C wrote: I did see 2.8, I'll install that on a different tray, so I can swap the 2.7.15 install back if for some reason I have issues. Whilst 2.8 is better than 2.7 in myriad ways, it isn't actually any better in respect

Re: [Emc-users] canned cycles

2020-11-12 Thread andy pugh
On Thu, 12 Nov 2020 at 18:56, R C wrote: > I did see 2.8, I'll install that on a different tray, so I can swap the > 2.7.15 install back if for some reason I have issues. Whilst 2.8 is better than 2.7 in myriad ways, it isn't actually any better in respect to G71 and G72. > > Are you using softw

Re: [Emc-users] canned cycles

2020-11-12 Thread R C
On 11/12/20 11:47 AM, andy pugh wrote: On Thu, 12 Nov 2020 at 18:21, R C wrote: Seems like I better start installing Linuxcnc 2.9 then. Is tehre a stable version that I can download? (what is the URL ?) Sorry, no. 2.9 is the dev version and inherently a little unstable. I did see 2.8, I

Re: [Emc-users] canned cycles

2020-11-12 Thread andy pugh
On Thu, 12 Nov 2020 at 18:21, R C wrote: > Seems like I better start installing Linuxcnc 2.9 then. Is tehre a > stable version that I can download? (what is the URL ?) Sorry, no. 2.9 is the dev version and inherently a little unstable. buildbot.linuxcnc.org has instructions. The Python remap

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Gene Heskett
On Thursday 12 November 2020 12:38:19 John Dammeyer wrote: > Mill it out of aluminium. Counter bores for the screws. Total time > spent will be way less than 3D printing it. There are places for 3D > printing. I use it all the time. But it's easy to get into that > place where when you have a

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Chris Albertson
Yes, this is in line with my suggestions to design based on the materials you are using. Countersinks have more bearing surface and are stronger in plastic than counterbores but MORE IMPORTENTLY a countersink can be printed upside down (or any orientations) with no need for a support structure.

Re: [Emc-users] canned cycles

2020-11-12 Thread R C
On 11/12/20 11:07 AM, andy pugh wrote: On Thu, 12 Nov 2020 at 18:01, R C wrote: So I watched some videos with some simple examples, but when I try running them in axis, it complains about "unknown g-code used. G71 and G72 are implemented in LinuxCNC 2.9 but not in 2.8. You can have G71 and

Re: [Emc-users] anti-freeze recommendation for water cooled spindle motors

2020-11-12 Thread Gene Heskett
On Thursday 12 November 2020 12:00:20 Dave Cole wrote: > I have been using Pink RV antifreeze for years in my horizontal > bandsaw.   The pump has been submersed in it for 7 years or so.    I > never goes bad and stuff never seems to grow in it, but it does > evaporate slowly.   I just add more. I

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Bruce Layne
I haven't used PETG, but I'd print that part with 5 outer layers (looks like you're using 12-15) and 20% infill (50% maximum).  It'll print faster and it'll probably be stronger in many respects.  An FDM printer lays down strands of hot plastic that squish into each other.  If a part is printed as

Re: [Emc-users] canned cycles

2020-11-12 Thread R C
I'll check out that link. I am using linuxcnc 2.7.15 On 11/12/20 11:04 AM, ken.stra...@gmail.com wrote: Perhaps see https://www.forum.linuxcnc.org/26-turning/34298-support-for-g72-and-g71 ? What version of LinuxCNC are you using? -Original Message- From: R C Sent: November 12, 202

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread Chris Albertson
You can not print over the top of air. If there is an overhang you need to enable "support" in Cura. If you do then Cura will print some removable structure under the overhang. Most people when they design parts try to design them so they can be printed without supports by avoiding overhangs bu

Re: [Emc-users] canned cycles

2020-11-12 Thread andy pugh
On Thu, 12 Nov 2020 at 18:01, R C wrote: > So I watched some videos with some simple examples, but when I try > running them in axis, it complains about "unknown g-code used. G71 and G72 are implemented in LinuxCNC 2.9 but not in 2.8. You can have G71 and G72 in 2.8 via a Python remap. if you r

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread andy pugh
On Thu, 12 Nov 2020 at 17:05, Gene Heskett wrote: > Suggested fixes? Countersunk screws instead of counterbored? More likely to be self-supporting. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunati

Re: [Emc-users] canned cycles

2020-11-12 Thread ken.strauss
Perhaps see https://www.forum.linuxcnc.org/26-turning/34298-support-for-g72-and-g71 ? What version of LinuxCNC are you using? -Original Message- From: R C Sent: November 12, 2020 12:59 PM To: linuxcnc-users-list Subject: [Emc-users] canned cycles Hello, I am trying to learn how to d

Re: [Emc-users] Emc-users Digest, Vol 175, Issue 37

2020-11-12 Thread Gregg Eshelman via Emc-users
One of the latest ways of making curves from lines.https://hackaday.com/2020/11/03/this-gcode-post-processor-squeezes-lines-into-arcs/ On Thursday, November 12, 2020, 03:16:43 AM MST, bruno schwander wrote: Not true. Vectorizers do that, convert from non vector formats (bitmaps) or si

[Emc-users] canned cycles

2020-11-12 Thread R C
Hello, I am trying to learn how to do canned cycles for a lathe (benchtop, Sherline) with linuxcnc So I watched some videos with some simple examples, but when I try running them in axis, it complains about "unknown g-code used. Wild guess here is that maybe some g codes are not implemen

Re: [Emc-users] More questions for the 3d 'spurts

2020-11-12 Thread John Dammeyer
Mill it out of aluminium. Counter bores for the screws. Total time spent will be way less than 3D printing it. There are places for 3D printing. I use it all the time. But it's easy to get into that place where when you have a hammer everything looks like a nail. John > -Original Mess

Re: [Emc-users] anti-freeze recommendation for water cooled spindle motors

2020-11-12 Thread Dave Cole
I have been using Pink RV antifreeze for years in my horizontal bandsaw.   The pump has been submersed in it for 7 years or so.    I never goes bad and stuff never seems to grow in it, but it does evaporate slowly.   I just add more. I use it full strength.   The Anticorrosives in it seem to ke

Re: [Emc-users] ender 3 and low quality sprockets

2020-11-12 Thread andy pugh
On Thu, 12 Nov 2020 at 02:22, Chris Albertson wrote: > A better approach is to create a slicer that can work with .STEP files > directly. Or slice inside the CAD software itself, where 100% of the design data is available. This isn't as hard as it sounds, I have even done it, using the built-in

Re: [Emc-users] Emc-users Digest, Vol 175, Issue 37

2020-11-12 Thread bruno schwander
Not true. Vectorizers do that, convert from non vector formats (bitmaps) or simple vector (just lines) into vector format including curves and lines. Look into the algos used in Autotrace (OSS) for example. Bruno Date: Wed, 11 Nov 2020 18:20:48 -0800 > From: Chris Albertson > > The information

Re: [Emc-users] ender 3 and low quality sprockets

2020-11-12 Thread Gene Heskett
On Wednesday 11 November 2020 21:20:48 Chris Albertson wrote: > The information is gone. There is no way to automatically reconstruct > a curve from a sequence of straight lines. A human can do this > because he can see what was intended. > > A better approach is to create a slicer that can work