Re: [Emc-users] Code of Conduct

On 6/28/21 10:53 PM, Robert Murphy wrote: Coraline Ada Ehmke is a blight, he's just a trouble maker that likes to throw his weight around. I had to google that...   now I am confused  "based in Chicago , Illinois

Re: [Emc-users] Code of Conduct

Coraline Ada Ehmke is a blight, he's just a trouble maker that likes to throw his weight around. On 29/6/21 1:17 pm, R C wrote: On 6/28/21 9:11 PM, John Dammeyer wrote: At the risk of being banned I'd suggest that this one point is a bit extreme: "Excessive or unwelcome helping; answering

Re: [Emc-users] Code of Conduct

On 6/28/21 9:11 PM, John Dammeyer wrote: At the risk of being banned I'd suggest that this one point is a bit extreme: "Excessive or unwelcome helping; answering outside the scope of the question asked" I agree with you,  I am a rookie, as well in machining as in using linuxcnc,  and I

Re: [Emc-users] Code of Conduct

At the risk of being banned I'd suggest that this one point is a bit extreme: "Excessive or unwelcome helping; answering outside the scope of the question asked" John Dammeyer > -Original Message- > From: Jeff Epler [mailto:jep...@unpythonic.net] > Sent: June-28-21 6:26 PM > To: Jeff

[Emc-users] Code of Conduct

The LinuxCNC community including this mailing list now has a written code of conduct. Unless it's your idea of fun to harass other people, this is a big non-event for you. You can read the code of conduct here: https://www.linuxcnc.org/CODE_OF_CONDUCT/ Jeff

Re: [Emc-users] Advice on Tuning Servo System

Sorry meant to say noise comes from the angular contact of the two bevel gears. The bearings are quiet. > I swapped in a 750W Bergerda with 3.2:1 and now I get 150 ipm and that's > scary fast for the knee. And I did upgrade the radial ball > bearings and bushings for the horizontal shaft to

Re: [Emc-users] Advice on Tuning Servo System

Hi Mathew, I found with the knee that best I could do with a 1200 oz-in stepper on a 56VDC power supply and a Gecko driver was 24 ipm with 3:1 driving the right angle shaft, through a bevel gear into the 1" ACME screw with 4 TPI. I swapped in a 750W Bergerda with 3.2:1 and now I get 150 ipm and

Re: [Emc-users] Advice on Tuning Servo System

Hi John and Les, Thank you for the input. I wasn’t sure how to tune the drives without the PID. P=0 & FF1=0 will yield a commanded velocity calculated purely on the commanded velocity and maximum acceleration, then? If so, that’s easy enough and may actually be all I need. John, I am

Re: [Emc-users] ./axis translate

seems to work #BASE = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), "..")) BASE = "/usr" вт, 22 июн. 2021 г. в 11:29, nkp216 : > if you use : > > [DISPLAY] > DISPLAY = ./axis > > the interface is not translated. > > most likely I have to edit some paths to translation files > >

Re: [Emc-users] Advice on Tuning Servo System

Hi Mathew, I'll lend my two cents to this too. I'm running DC servos on two axis and an AC Servo on the knee. The DC Servo drives are HP_UHU kits with the CPU an add on card from Henrik Olsson in Sweden. The AC knee is a Bergerda 750W drive already set up from the factory for that size motor.

Re: [Emc-users] Advice on Tuning Servo System

Hi Matthew, That FF1 is probably causing the increasing following error. Again I'd strongly recommend using just stepgen rather than a combination of stepgen and PID. At the moment LCNC and your drives are fighting each other. The oscillation could be the drive tuning or the loops fighting

Re: [Emc-users] Advice on Tuning Servo System

Hi Les, I’m jogging at 60IPM, 120IPM, and 250IPM for testing purposes. Depending on the PID parameters I was seeing increasing ferror with jog time at all three speeds. The delay in stopping also seemed to correlate with the ferror. Tuning eventually brought it down to constant ferror, but

Re: [Emc-users] Advice on Tuning Servo System

Hi Matthew, I'd recommend setting this up as a stepper system and ignore the encoder feedback for now. The feedback loop inside the drive is likely to fight with the PID loop inside LinuxCNC. The encoders can be used for position feedback but that's not essential and is just making it harder

Re: [Emc-users] Advice on Tuning Servo System

Hi Les, The drives accept step/direction from the USC board to command position, not velocity. The encoders are pass-through to the USC board and then to LinuxCNC. Thanks! Matt > On Jun 28, 2021, at 9:02 AM, Les Newell wrote: > > Hi Matthew, > > First of all, how are your drives

Re: [Emc-users] Advice on Tuning Servo System

Hi Matthew, First of all, how are your drives configured? Is the step/direction commanding position to the drives or velocity? If you are using position (the most common with step/dir) all of your PID tuning should be done in the drive. Do you have feedback to LCNC from the encoders? Les

Re: [Emc-users] Advice on Tuning Servo System

I think I might have been adjusting the wrong velocity & acceleration parameters … see below for the trajectory planner section of the INI: I assume that increasing the max linear velocity term will help with at least some of the issues. And making sure my max linear acceleration is 25%

Re: [Emc-users] 2.8.2 Release

On Monday 28 June 2021 03:54:57 Robert Murphy wrote: > Any chance of midnight commander ? > > It's a great tool for file management\editing\viewing files when X > fails for whatever reason. > > Cheers I'll 2nd, 3rd asnd 4th that, its been my goto tool for all sorts of stuff fot 2+ decades now,

Re: [Emc-users] 2.8.2 Release

On 2021-06-28 00:08, andy pugh wrote: LinuxCNC 2.8.2 has been released. This is great news. Lovely to see the software being updated and continuously developed. Its a smashing tool. Thanks to ALL the team. Marcus ___ Emc-users mailing list

Re: [Emc-users] 2.8.2 Release

A big thank you from me too for keeping this excellent software going and up to date I used LCNC to re-brain an old Emcoturn 220P lathe and am now using it commercially to try and make a living (I couldn't have afforded to do that otherwise). So, it's literally life changing :) Thanks

Re: [Emc-users] 2.8.2 Release

Also want to say a big thanks! You guys are awesome On Mon, Jun 28, 2021, 7:58 PM Robert Murphy wrote: > Sorry Andy, should have really sent out a heartfelt thanks fro all the > hard work by the team. > > On 28/6/21 5:25 pm, andy pugh wrote: > > On Mon, 28 Jun 2021 at 07:47, jrmitchellj

Re: [Emc-users] 2.8.2 Release

Sorry Andy, should have really sent out a heartfelt thanks fro all the hard work by the team. On 28/6/21 5:25 pm, andy pugh wrote: On Mon, 28 Jun 2021 at 07:47, jrmitchellj wrote: Andy, if you are going to spin up a new ISO, It would be really nice to include/install pciutils in the

Re: [Emc-users] 2.8.2 Release

Any chance of midnight commander ? It's a great tool for file management\editing\viewing files when X fails for whatever reason. Cheers Rob On 28/6/21 5:25 pm, andy pugh wrote: On Mon, 28 Jun 2021 at 07:47, jrmitchellj wrote: Andy, if you are going to spin up a new ISO, It would be

Re: [Emc-users] 2.8.2 Release

On Mon, 28 Jun 2021 at 07:47, jrmitchellj wrote: > Andy, if you are going to spin up a new ISO, It would be really nice to > include/install pciutils in the package. That's one of the reasons that I am planning a new ISO. The ISO source is already updated.

Re: [Emc-users] 2.8.2 Release

Great news! Andy, if you are going to spin up a new ISO, It would be really nice to include/install pciutils in the package. (very useful in troubleshooting new installations) Thank you, and the software teams for your diligent work! --J. Ray Mitchell Jr. jrmitche...@gmail.com “I predict