Re: [Emc-users] 7i43 load error LinuxCNC 2.7.4

On 30 June 2017 at 05:30, Condit Alan via Emc-users < emc-users@lists.sourceforge.net> wrote: > loadrt scale names=scale.spindle > addf scale.spindle servo-thread > setp scale.spindle.gain 60 > > Does anything stand out as an error? > Not really. Does the HAL parse the lines

Re: [Emc-users] A phoney from Sourceforge?

On 30 June 2017 at 01:11, Erik Christiansen wrote: > Have just received a second reminder to resubscribe to _our_ list, by > June 30. Taking the plunge, and following the link, I found that it was > not possible to proceed if I deselected acceptance of spam from >

Re: [Emc-users] A phoney from Sourceforge?

On Fri, 2017-06-30 at 19:25 +1000, Erik Christiansen wrote: > On 30.06.17 09:54, andy pugh wrote: > > On 30 June 2017 at 01:11, Erik Christiansen wrote: > > > > > Have just received a second reminder to resubscribe to _our_ list, by > > > June 30. Taking the plunge, and

Re: [Emc-users] A phoney from Sourceforge?

On 30.06.17 09:54, andy pugh wrote: > On 30 June 2017 at 01:11, Erik Christiansen wrote: > > > Have just received a second reminder to resubscribe to _our_ list, by > > June 30. Taking the plunge, and following the link, I found that it was > > not possible to proceed if

Re: [Emc-users] A phoney from Sourceforge?

On 06/30/2017 05:25 AM, Erik Christiansen wrote: On 30.06.17 09:54, andy pugh wrote: On 30 June 2017 at 01:11, Erik Christiansen wrote: Have just received a second reminder to resubscribe to _our_ list, by June 30. Taking the plunge, and following the link, I found

Re: [Emc-users] Backlash comp, does it follow sign of encoder (input) scale?

On 06/30/2017 08:08 AM, Stuart Stevenson wrote: Gentlemen, Here is the comp file from the B axis of the blue cincinnati at MPM. -32.0 .041 .045 22.0 -.014 -.030 I started the compensation two degrees past the travel on both ends so the compensation would be applied (my intention anyway) for

Re: [Emc-users] Backlash comp, does it follow sign of encoder (input) scale?

- Original Message - > From: "Gene Heskett" > To: emc-users@lists.sourceforge.net > Sent: Thursday, June 29, 2017 10:36:04 PM > Subject: Re: [Emc-users] Backlash comp, does it follow sign of encoder > (input) scale? > > BTW, I got another of those sub confirmation

Re: [Emc-users] Backlash comp, does it follow sign of encoder (input) scale?

Gentlemen, Here is the comp file from the B axis of the blue cincinnati at MPM. -32.0 .041 .045 -31.0 .039 .042 -30.0 .037 .040 -29.0 .037 .038 -28.0 .035 .035 -27.0 .035 .039 -26.0 .034 .036 -25.0 .034 .034 -24.0 .030 .032 -23.0 .029 .031 -22.0 .027 .029 -21.0 .028 .029 -20.0 .025 .026 -19.0

Re: [Emc-users] medium frequency vibration, spindle bearings?

On 30 June 2017 at 01:35, Gene Heskett wrote: > > What oil are you using? Some lathes need very light oil. I run ISO 32 > > hydraulic oil in the Rivett. (10 wt on the other scale) > > Exactly whats in the can, 10w non-detergent for air compressors. Seems > thick and I may

Re: [Emc-users] Rough motion with servos

I think it is time to put a scope on the encoder. it sounds like there may be a big duty cycle or phase angle error in that encoder. In other words, at constant speed, the 4 quadrature transitions are not evenly spaced, but at least one of them is out of time. I can see the phase angle

Re: [Emc-users] Resubscription crap [Was: Backlash comp, does it follow sign of encoder (input)

- Original Message - > From: "Erik Christiansen" > To: emc-users@lists.sourceforge.net > Sent: Friday, June 30, 2017 12:21:30 AM > Subject: [Emc-users] Resubscription crap [Was: Backlash comp, does it follow > sign of encoder (input) > > scale?] > Reply-To:

Re: [Emc-users] medium frequency vibration, spindle bearings?

On Friday 30 June 2017 06:13:19 andy pugh wrote: > On 30 June 2017 at 01:35, Gene Heskett wrote: > > > What oil are you using? Some lathes need very light oil. I run ISO > > > 32 hydraulic oil in the Rivett. (10 wt on the other scale) > > > > Exactly whats in the can, 10w

Re: [Emc-users] Rough motion with servos

OK, this is embarrassing. It is noise and it has always been there. Anyone got any spare crows for me to eat? :-[ Do you have and raw-write encoder filter tweaking stuff in the hal file: The bitfile may have changed so the address is no longer correct (plus newwer version of the driver let

Re: [Emc-users] Rough motion with servos

On 06/30/2017 04:11 AM, Les Newell wrote: I think it is time to put a scope on the encoder. it sounds like there may be a big duty cycle or phase angle error in that encoder. In other words, at constant speed, the 4 quadrature transitions are not evenly spaced, but at least one of them is

Re: [Emc-users] Rough motion with servos

On Friday 30 June 2017 09:27:29 Peter C. Wallace wrote: > On Fri, 30 Jun 2017, Les Newell wrote: > > Date: Fri, 30 Jun 2017 12:11:09 +0100 > > From: Les Newell > > Reply-To: "Enhanced Machine Controller (EMC)" > > > > To:

Re: [Emc-users] Rough motion with servos

On 06/29/2017 06:42 AM, Les Newell wrote: I tried using Buildbot on a fresh install of Stretch amd64 and got a bunch of missing dependencies: python-gst0.10 (Stretch has python-gst1.0) gstreamer0.10-plugins-base hostmot2-firmware-all Thanks for reporting this problem. We've removed the

Re: [Emc-users] Interp problems?

On 06/29/2017 09:08 PM, Jon Elson wrote: On 06/29/2017 10:43 PM, dave wrote: On 06/25/2017 12:32 PM, Jon Elson wrote: On 06/25/2017 09:21 AM, dave wrote: .warning: gcode exceeds machine limits. I classically set my limits at -.2 ..18, -.2, ..9 and 0 ... -3. Moving to -9 ... 9, -4

Re: [Emc-users] Backlash comp, does it follow sign of encoder (input) scale?

Backlash compensation will not move the orthogonal axes in reference to the compensated axis motion. If you are having length problems during the motion of the Z axis then comp could help. My file shows the bidirectional compensation of LinuxCNC. On Fri, Jun 30, 2017 at 7:19 AM, Mark

Re: [Emc-users] Backlash comp, does it follow sign of encoder (input) scale?

On 06/30/2017 10:40 AM, Stuart Stevenson wrote: Backlash compensation will not move the orthogonal axes in reference to the compensated axis motion. If you are having length problems during the motion of the Z axis then comp could help. My file shows the bidirectional compensation of LinuxCNC.

Re: [Emc-users] Backlash comp, does it follow sign of encoder (input) scale?

probably should have called it leadscrew comp rather than backlash On Fri, Jun 30, 2017 at 9:40 AM, Stuart Stevenson wrote: > Backlash compensation will not move the orthogonal axes in reference to > the compensated axis motion. > If you are having length problems during the

Re: [Emc-users] Rough motion with servos

On Fri, 30 Jun 2017, Gene Heskett wrote: Date: Fri, 30 Jun 2017 12:22:24 -0400 From: Gene Heskett Reply-To: "Enhanced Machine Controller (EMC)" To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Rough motion with servos On

Re: [Emc-users] Rough motion with servos

On Friday 30 June 2017 10:12:31 Les Newell wrote: > OK, this is embarrassing. It is noise and it has always been there. > Anyone got any spare crows for me to eat? :-[ > > > Do you have and raw-write encoder filter tweaking stuff in the hal > > file: The bitfile may have changed so the address is

[Emc-users] Reading config values with a realtime HAL module.

Is it possible for a real time HAL module to read config values from disk? I guess I could do it the ugly way and have two modules, one in user space to read the disk and pass values to the mealtime module. My lathe is pretty worn near the headstock so it tends to turn tapers when working

Re: [Emc-users] Rough motion with servos

Years ago Jon Elson convinced me you almost could not too many counts/rev. Going from 5000 c/in (glass scale) to 40K c/in made a huge difference in how easy it was to tune. I agree with Jon but changing the encoder is a pain and once I got past the noise issues, tuning it was pretty

Re: [Emc-users] Rough motion with servos

On Friday 30 June 2017 12:45:55 Peter C. Wallace wrote: > On Fri, 30 Jun 2017, Gene Heskett wrote: > > Date: Fri, 30 Jun 2017 12:22:24 -0400 > > From: Gene Heskett > > Reply-To: "Enhanced Machine Controller (EMC)" > > > > To:

Re: [Emc-users] 7i43 load error LinuxCNC 2.7.4

Thanks Andy, I found the error. The hal source on my Mac wasn’t the same as that on my linuxcnc box. I got the loadf’s and addf’s setup correctly now. However, now I am getting the error “Epp timeout while sending firmware". Would the error message for timeout be the same if it failed to find

[Emc-users] Fwd: Reconfirm subscription to emc-users and emc-developers mailing lists

Was a consensus ever reached as to the validity of these "Reconfirm subscription" emails? This is the first time I have gotten one of them. Surly they are not going to actually end my subscription if I don't "reconfirm" by July 30th. And what if they do end my subscription, it is a simple mater of

Re: [Emc-users] Rough motion with servos

On Fri, 30 Jun 2017, Gene Heskett wrote: Date: Fri, 30 Jun 2017 16:59:19 -0400 From: Gene Heskett Reply-To: "Enhanced Machine Controller (EMC)" To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Rough motion with servos On

Re: [Emc-users] Rough motion with servos

Dammit, for some reason when I reply to messages on this list they often end up going to the author of the message rather than to the list. Sorry Gene, you'll probably end up receiving two copies of this. Les, when I have something like that, I often ask myself if it was worth chewing thru

[Emc-users] Can't install from livecd (usb stick)

I was going to update my Emco F1 mill with the latest Linuxcnc running on Debian Wheezy. It is currently on an old Ubuntu that isn’t updated anymore. I have built a bootable USB stick using two different methods, one from my Mac using terminal commands and one from another Debian machine

Re: [Emc-users] Reading config values with a realtime HAL module.

On Fri, Jun 30, 2017 at 2:46 PM, Les Newell wrote: > Is it possible for a real time HAL module to read config values from disk? > I guess I could do it the ugly way and have two modules, one in user space > to read the disk and pass values to the mealtime module. >

Re: [Emc-users] Reading config values with a realtime HAL module.

On 06/30/2017 03:46 PM, Les Newell wrote: Is it possible for a real time HAL module to read config values from disk? I guess I could do it the ugly way and have two modules, one in user space to read the disk and pass values to the mealtime module. Realtime modules can not do file I/O. If you

Re: [Emc-users] Rough motion with servos

On 06/30/2017 11:45 AM, Peter C. Wallace wrote: This does show that a relatively small quadrature error causes a large velocity modulation is the relative time between edge changes so much Good encoders have very close to 50% duty cycle on the individual A and B outputs, at least when new.

Re: [Emc-users] Rough motion with servos

On Friday 30 June 2017 17:29:39 Peter C. Wallace wrote: > On Fri, 30 Jun 2017, Gene Heskett wrote: > > Date: Fri, 30 Jun 2017 16:59:19 -0400 > > From: Gene Heskett > > Reply-To: "Enhanced Machine Controller (EMC)" > > > > To:

Re: [Emc-users] Rough motion with servos

On Friday 30 June 2017 07:11:09 Les Newell wrote: > > I think it is time to put a scope on the encoder. it sounds like > > there may be a big duty cycle or phase angle error in that encoder. > > In other words, at constant speed, the 4 quadrature transitions are > > not evenly spaced, but at

Re: [Emc-users] Rough motion with servos

May I opine that noise on one of the encoder lines may cause a zero speed estimation. If you get two of the same channel edges in a row the encoder logically must have reversed direction. It must go through zero speed to change direction. Since a third edge (one on the other channel) is not yet

Re: [Emc-users] Rough motion with servos

On Fri, 30 Jun 2017, Les Newell wrote: Date: Fri, 30 Jun 2017 12:11:09 +0100 From: Les Newell Reply-To: "Enhanced Machine Controller (EMC)" To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Rough motion with servos