Re: [Emc-users] Following Error Joint 2

30 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > -Original Message- > From: John Dammeyer > Sent: Thursday, March 04, 2021 3:41 PM > To: 'Enhanced Machine Controller (EMC)' > Subject: Re: [Emc-users] Following Error Joint 2 > >

Re: [Emc-users] Following Error Joint 2

On Thu, 4 Mar 2021, John Dammeyer wrote: Date: Thu, 4 Mar 2021 12:40:34 -0800 From: John Dammeyer Reply-To: "Enhanced Machine Controller (EMC)" To: "'Enhanced Machine Controller (EMC)'" Subject: Re: [Emc-users] Following Error Joint 2 From: Les Newell [mailto:les.n

Re: [Emc-users] Following Error Joint 2

: Thursday, March 04, 2021 3:41 PM To: 'Enhanced Machine Controller (EMC)' Subject: Re: [Emc-users] Following Error Joint 2 [EXTERNAL EMAIL] Be sure links are safe. > From: Les Newell [mailto:les.new...@fastmail.co.uk] > > I'm going to guess that low-level I/O error is

Re: [Emc-users] Following Error Joint 2

> From: Les Newell [mailto:les.new...@fastmail.co.uk] > > I'm going to guess that low-level I/O error is a general > > _Following_Error_Joint_2_? > > No. It is a different error. I can't remember the exact wording but I > have seen it before. > > The following error message is correct. With

Re: [Emc-users] Following Error Joint 2

troller (EMC) > Subject: Re: [Emc-users] Following Error Joint 2 > > sorry to throw something else into the mix... I was getting following > errors without realtime errors on the pie because the default internet time > sync (timesyncd) sucked.. > > timesyncd vs ntp > > http

Re: [Emc-users] Following Error Joint 2

On Thursday 04 March 2021 12:59:28 Sam Sokolik wrote: > sorry to throw something else into the mix... I was getting following > errors without realtime errors on the pie because the default internet > time sync (timesyncd) sucked.. > > timesyncd vs ntp > >

Re: [Emc-users] Following Error Joint 2

I'm going to guess that low-level I/O error is a general _Following_Error_Joint_2_? No. It is a different error. I can't remember the exact wording but I have seen it before. The following error message is correct. With steppers you have two acceleration settings. There is the joint

Re: [Emc-users] Following Error Joint 2

sorry to throw something else into the mix... I was getting following errors without realtime errors on the pie because the default internet time sync (timesyncd) sucked.. timesyncd vs ntp https://www.youtube.com/watch?v=RDKaFJmB254 On Thu, Mar 4, 2021 at 11:37 AM John Dammeyer wrote: > > A

Re: [Emc-users] Following Error Joint 2

> A following error is _expected_ if the stepgen maxaccel parameter is not at > least 2x the joints maxaccel value (or if any stepgen constraint is lower > than what linuxCNC may command it to do) So HAL setup can absolutely cause > following errors. > > > > But if electrical noise from the higher

Re: [Emc-users] Following Error Joint 2

> > Perhaps you can explain why that message shows up at all in an open loop > situation? What does the FPGA do that would cause that? Is there a separate > message for missing Ethernet or out of sequence Ethernet packets or is it > lumped into Following Error on Joint? A further question

Re: [Emc-users] Following Error Joint 2

> From: Peter C. Wallace [mailto:p...@mesanet.com] > On Wed, 3 Mar 2021, John Dammeyer wrote: > > > Date: Wed, 3 Mar 2021 23:11:23 -0800 > > From: John Dammeyer > >>> The comment on the link about Ethernet latency is what interested me. > >>> Again if electrical noise causes retries or delays in

Re: [Emc-users] Following Error Joint 2

On Wed, 3 Mar 2021, John Dammeyer wrote: Date: Wed, 3 Mar 2021 23:11:23 -0800 From: John Dammeyer Reply-To: "Enhanced Machine Controller (EMC)" To: "'Enhanced Machine Controller (EMC)'" Subject: Re: [Emc-users] Following Error Joint 2 The comment on the link ab

Re: [Emc-users] Following Error Joint 2

LinuxCNC is designed to run servos. The stepgens simulate servos and will throw a following error if they are unable to generate steps at the commanded rate or acceleration. As Peter says, you probably increase your stepgen acceleration. Les On 04/03/2021 03:17, John Dammeyer wrote: The

Re: [Emc-users] Following Error Joint 2

troller (EMC) > Subject: Re: [Emc-users] Following Error Joint 2 > > That was my thinking. It would also need to be a smart motor driver that > senses motor rotor position either via encoder or back emf > and adjusts motor current based on load. > > Thaddeus Waldner > ___

Re: [Emc-users] Following Error Joint 2

> > > > The comment on the link about Ethernet latency is what interested me. > > Again if electrical noise causes retries or delays in the Ethernet > > signalling then that could cause this sort of error under heavy load. > > > > John > > And this is what the high frequency gains do, FF2 and

Re: [Emc-users] Following Error Joint 2

On Wednesday 03 March 2021 22:17:35 John Dammeyer wrote: > > -Original Message- > > From: Gene Heskett [mailto:ghesk...@shentel.net] > > Sent: March-03-21 6:40 PM > > To: emc-users@lists.sourceforge.net > > Subject: Re: [Emc-users] Following Error Joint 2

Re: [Emc-users] Following Error Joint 2

Machine Controller (EMC) Subject: Re: [Emc-users] Following Error Joint 2 On 03/03/2021 09:17 PM, John Dammeyer wrote: > > Recall this is open loop motion with no feedback from the > servo other than if the servo faults which it doesn't. So > weight shouldn't matter. S

Re: [Emc-users] Following Error Joint 2

> -Original Message- > From: Jon Elson [mailto:el...@pico-systems.com] > On 03/03/2021 09:17 PM, John Dammeyer wrote: > > Recall this is open loop motion with no feedback from the > > servo other than if the servo faults which it doesn't. So > > weight shouldn't matter. Should it? >

Re: [Emc-users] Following Error Joint 2

On 03/03/2021 09:17 PM, John Dammeyer wrote: Recall this is open loop motion with no feedback from the servo other than if the servo faults which it doesn't. So weight shouldn't matter. Should it? OK,this is EXTREMELY bizarre! In open loop, how could LinuxCNC know anything about the load on

Re: [Emc-users] Following Error Joint 2

> -Original Message- > From: Gene Heskett [mailto:ghesk...@shentel.net] > Sent: March-03-21 6:40 PM > To: emc-users@lists.sourceforge.net > Subject: Re: [Emc-users] Following Error Joint 2 > > On Wednesday 03 March 2021 20:18:44 Gene Heskett wrote: > > >

Re: [Emc-users] Following Error Joint 2

On Wednesday 03 March 2021 20:18:44 Gene Heskett wrote: > On Wednesday 03 March 2021 19:42:25 John Dammeyer wrote: > > I made another video with the new 3D printed pulley. Much better > > balanced as I made the inner hole and outside hub thicker and then > > bored and turned it to the correct

Re: [Emc-users] Following Error Joint 2

On Wednesday 03 March 2021 19:42:25 John Dammeyer wrote: > I made another video with the new 3D printed pulley. Much better > balanced as I made the inner hole and outside hub thicker and then > bored and turned it to the correct diameter and concentric with each > other. Now just shows the Z

Re: [Emc-users] Following Error Joint 2

On Wed, 3 Mar 2021, John Dammeyer wrote: Date: Wed, 3 Mar 2021 16:42:25 -0800 From: John Dammeyer Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: [Emc-users] Following Error Joint 2 I made another video with the n

[Emc-users] Following Error Joint 2

I made another video with the new 3D printed pulley. Much better balanced as I made the inner hole and outside hub thicker and then bored and turned it to the correct diameter and concentric with each other. Now just shows the Z axis jogging up and down after homing. I still get the

Re: [Emc-users] following error only while homing

quot;Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Friday, June 23, 2017 5:07:42 PM Subject: Re: [Emc-users] following error only while homing - Original Message - From: "Peter C. Wallace" <p...@mesanet.com> To: "Enhanced Machine Con

Re: [Emc-users] following error only while homing

ced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Subject: Re: [Emc-users] following error only while homing That is what I've suspected but I can't figure out what I have out of place. I did another screen shot with the position-cmd zoomed in as much as I coul

Re: [Emc-users] following error only while homing

: "Todd Zuercher" <zuerc...@embarqmail.com> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Friday, June 23, 2017 1:20:26 PM Subject: Re: [Emc-users] following error only while homing That is what I've suspected but I can't figure out

Re: [Emc-users] following error only while homing

ced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Subject: Re: [Emc-users] following error only while homing Here are links to a halscope screen shot and log file for my servo machine that keeps setting following errors on first try homing. homing-error

Re: [Emc-users] following error only while homing

- Original Message - From: "Nicklas Karlsson" <nicklas.karlsso...@gmail.com> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Thursday, June 22, 2017 1:23:29 PM Subject: Re: [Emc-users] following error only while homing On

Re: [Emc-users] following error only while homing

On Thu, 22 Jun 2017 00:06:42 +0100 andy pugh wrote: > On 21 June 2017 at 19:36, Peter C. Wallace wrote: > > > The stepgen is not computing following error it just cant be driven by a > > position command with a stepwise discontinuity and move

Re: [Emc-users] following error only while homing

On 22 June 2017 at 00:19, Peter C. Wallace wrote: > > Only because the step was small (because it was probably not the first > time homed) Well, yes, but then the question is _why_ it is triggering the f-error again. -- atp "A motorcycle is a bicycle with a pandemonium

Re: [Emc-users] following error only while homing

I moved the Z axis down maybe 1/2" before issuing the home command, so it only needs to move a short distance to get back to the switch. -Tom > On Jun 21, 2017, at 7:19 PM, Peter C. Wallace wrote: > > Only because the step was small (because it was probably not the first time

Re: [Emc-users] following error only while homing

On Thu, 22 Jun 2017, andy pugh wrote: Date: Thu, 22 Jun 2017 00:06:42 +0100 From: andy pugh <bodge...@gmail.com> Reply-To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourc

Re: [Emc-users] following error only while homing

On 21 June 2017 at 19:36, Peter C. Wallace wrote: > The stepgen is not computing following error it just cant be driven by a > position command with a stepwise discontinuity and move instantaneously to > the new position. I think it might be more interesting than that.

Re: [Emc-users] following error only while homing

.sourceforge.net> Subject: Re: [Emc-users] following error only while homing On 06/21/2017 12:15 PM, Peter C. Wallace wrote: A step in the FB position from the encoder and an attempt at an impossible step in the commanded stepgen position... All the complexities / workrounds of this po

Re: [Emc-users] following error only while homing

On 06/21/2017 12:15 PM, Peter C. Wallace wrote: A step in the FB position from the encoder and an attempt at an impossible step in the commanded stepgen position... All the complexities / workrounds of this position step on index could be avoided if support for encoder counter that can

Re: [Emc-users] following error only while homing

.sourceforge.net> Subject: Re: [Emc-users] following error only while homing On 06/20/2017 10:15 AM, Sebastian Kuzminsky wrote: On 06/20/2017 08:52 AM, Chris Radek wrote: On Tue, Jun 20, 2017 at 09:27:46AM +0100, andy pugh wrote: Now, this is perfectly normal, and with a servo / pid machine

Re: [Emc-users] following error only while homing

On 06/20/2017 10:15 AM, Sebastian Kuzminsky wrote: On 06/20/2017 08:52 AM, Chris Radek wrote: On Tue, Jun 20, 2017 at 09:27:46AM +0100, andy pugh wrote: Now, this is perfectly normal, and with a servo / pid machine the system knows to ignore the f-error immediately after an encoder reset.

Re: [Emc-users] following error only while homing

.sourceforge.net> Subject: Re: [Emc-users] following error only while homing So is that large jump in f-error caused by the difference between axis.2.joint-pos-cmd and axis.2.joint-pos-fb? There is a small 90 degree step in pos-cmd that is not mirrored in pos-fb near the end, in line with th

Re: [Emc-users] following error only while homing

So is that large jump in f-error caused by the difference between axis.2.joint-pos-cmd and axis.2.joint-pos-fb? There is a small 90 degree step in pos-cmd that is not mirrored in pos-fb near the end, in line with the spike of f-error. Is that the cause and why is that there? -Tom > On Jun

Re: [Emc-users] following error only while homing

On Tue, 20 Jun 2017, tom-...@bgp.nu wrote: Date: Tue, 20 Jun 2017 19:52:13 -0400 From: tom-...@bgp.nu Reply-To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Su

Re: [Emc-users] following error only while homing

Here is more zoom fwiw…. http://bgp.nu/~tom/pub/enc-6.png -Tom -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot

Re: [Emc-users] following error only while homing

On 06/20/2017 01:31 PM, tom-...@bgp.nu wrote: The Halscope trace of: hm2_7i43.0.stepgen.02.position-cmd, hm2_7i43.0.encoder.02.position, hm2_7i43.0.encoder.02.index-enable, axis.2.home-sw-in with trigger of axis.2.f-errored can be seen here: http://bgp.nu/~tom/pub/enc2.png Wel that looks

Re: [Emc-users] following error only while homing

> window to make it go away.) > > - Original Message - > From: tom-...@bgp.nu > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Sent: Tuesday, June 20, 2017 3:31:42 PM > Subject: Re: [Emc-users] following error only wh

Re: [Emc-users] following error only while homing

<emc-users@lists.sourceforge.net> Sent: Tuesday, June 20, 2017 3:31:42 PM Subject: Re: [Emc-users] following error only while homing You guys are prolific, and I appreciate it! Thanks for all the input. A few things in case it hasn’t been clear... 1) I don’t (currently) have a PID involved at al

Re: [Emc-users] following error only while homing

You guys are prolific, and I appreciate it! Thanks for all the input. A few things in case it hasn’t been clear... 1) I don’t (currently) have a PID involved at all (position-mode steppers with encoders only). 2) If I set FERROR=2 and MIN_FERROR=1, homing DOES complete successfully. 2)

Re: [Emc-users] following error only while homing

On 20 June 2017 at 18:47, Sebastian Kuzminsky wrote: > It looks like it'd be easy to add a ".raw-position" pin to the hostmot2 > encoder. Does homing use the accumulated counts in the counter after index as part of the homing offset? It feels like it should. If it does, then

Re: [Emc-users] following error only while homing

On 20 June 2017 at 18:47, Sebastian Kuzminsky wrote: > It looks like it'd be easy to add a ".raw-position" pin to the hostmot2 > encoder. We already track .rawcount and compute .count from it, and > compute .position from .count. If that is the answer then rawcounts * scale

Re: [Emc-users] following error only while homing

On 06/20/2017 11:47 AM, Sebastian Kuzminsky wrote: On 06/20/2017 11:39 AM, Sebastian Kuzminsky wrote: On 06/20/2017 11:34 AM, Sebastian Kuzminsky wrote: On 06/20/2017 10:51 AM, andy pugh wrote: On 20 June 2017 at 17:37, Peter C. Wallace wrote: I suspect this cannot work

Re: [Emc-users] following error only while homing

On 06/20/2017 11:39 AM, Sebastian Kuzminsky wrote: On 06/20/2017 11:34 AM, Sebastian Kuzminsky wrote: On 06/20/2017 10:51 AM, andy pugh wrote: On 20 June 2017 at 17:37, Peter C. Wallace wrote: I suspect this cannot work the way you have this setup because of the

Re: [Emc-users] following error only while homing

On 06/20/2017 11:34 AM, Sebastian Kuzminsky wrote: On 06/20/2017 10:51 AM, andy pugh wrote: On 20 June 2017 at 17:37, Peter C. Wallace wrote: I suspect this cannot work the way you have this setup because of the instantaneous jump in encoder (feedback) position at index

Re: [Emc-users] following error only while homing

On 06/20/2017 10:51 AM, andy pugh wrote: On 20 June 2017 at 17:37, Peter C. Wallace wrote: I suspect this cannot work the way you have this setup because of the instantaneous jump in encoder (feedback) position at index He has hooked up axis.*.motor-pos-cmd to the

Re: [Emc-users] following error only while homing

On 20 June 2017 at 17:37, Peter C. Wallace wrote: > I suspect this cannot work the way you have this setup because of the > instantaneous jump in encoder (feedback) position at index I wonder if the answer might be to only connect the encoder once homed? ie, use a mux2 to to

Re: [Emc-users] following error only while homing

On Mon, 19 Jun 2017, tom-...@bgp.nu wrote: Date: Mon, 19 Jun 2017 22:51:59 -0400 From: tom-...@bgp.nu Reply-To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>

Re: [Emc-users] following error only while homing

Easterday" <tom-...@bgp.nu> > >> To: "Enhanced Machine Controller (EMC)" > >> <emc-users@lists.sourceforge.net> Sent: Tuesday, June 20, 2017 > >> 9:00:22 AM > >> Subject: Re: [Emc-users] following error only while homing >

Re: [Emc-users] following error only while homing

On 06/20/2017 09:52 AM, Chris Radek wrote: On Tue, Jun 20, 2017 at 09:27:46AM +0100, andy pugh wrote: Now, this is perfectly normal, and with a servo / pid machine the system knows to ignore the f-error immediately after an encoder reset. What is puzzling me here is why it isn't working in this

Re: [Emc-users] following error only while homing

On 06/19/2017 08:51 PM, tom-...@bgp.nu wrote: Why would I get a following error only while homing (latest Linuxcnc 2.7.9)? I recently added home switches to my machine. My machine has encoders on the steppers on each of the 3 axes so I want to use the index pulse for home. I set up the homing

Re: [Emc-users] following error only while homing

On 06/20/2017 08:00 AM, Tom Easterday wrote: Andy, you are correct it is related to using index. Homing works fine if I don't use index. The encoder reset makes sense as to why it CAN happen (but shouldn't be). Is this just a bug? I would try to home a second time but as Todd says, I

Re: [Emc-users] following error only while homing

On 06/20/2017 07:13 AM, Todd Zuercher wrote: I wish that were true. For some reason my analog servo machine trips up and sets a following error on an axis about 25% of the time when trying to home to index for the first time after turning on LInuxcnc. (Almost every time since it is a 4

Re: [Emc-users] following error only while homing

On 06/20/2017 03:27 AM, andy pugh wrote: On 20 June 2017 at 03:51, wrote: Why would I get a following error only while homing I think it is probably because you are using HOME_USE_INDEX (which will zero the encoder at the index pulse) and feeding the encoder feedback back

Re: [Emc-users] following error only while homing

On 06/20/2017 08:52 AM, Chris Radek wrote: On Tue, Jun 20, 2017 at 09:27:46AM +0100, andy pugh wrote: Now, this is perfectly normal, and with a servo / pid machine the system knows to ignore the f-error immediately after an encoder reset. What is puzzling me here is why it isn't working in

Re: [Emc-users] following error only while homing

On 20 June 2017 at 15:52, Chris Radek wrote: > > Now, this is perfectly normal, and with a servo / pid machine the system > > knows to ignore the f-error immediately after an encoder reset. What is > > puzzling me here is why it isn't working in this case. I think it is > >

Re: [Emc-users] following error only while homing

On Tue, Jun 20, 2017 at 09:27:46AM +0100, andy pugh wrote: > > Now, this is perfectly normal, and with a servo / pid machine the system > knows to ignore the f-error immediately after an encoder reset. What is > puzzling me here is why it isn't working in this case. I think it is pid's

Re: [Emc-users] following error only while homing

ontroller (EMC)" <emc-users@lists.sourceforge.net> Sent: Tuesday, June 20, 2017 10:15:01 AM Subject: Re: [Emc-users] following error only while homing Hmm, it seems like I failed miserably trying to do that when I first built the machine (this was my first build and Linuxcnc endeavor

Re: [Emc-users] following error only while homing

e - > From: "Tom Easterday" <tom-...@bgp.nu> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Sent: Tuesday, June 20, 2017 9:49:51 AM > Subject: Re: [Emc-users] following error only while homing > > Todd, the ini a

Re: [Emc-users] following error only while homing

problem. >> Could you post a copy of your ini and hal file somewhere where we could >> check it over. >> >> - Original Message - >> From: "Tom Easterday" <tom-...@bgp.nu> >> To: "Enhanced Machine Controller (EMC)" <emc-users@l

Re: [Emc-users] following error only while homing

. - Original Message - From: "Tom Easterday" <tom-...@bgp.nu> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Tuesday, June 20, 2017 9:49:51 AM Subject: Re: [Emc-users] following error only while homing Todd, the ini and h

Re: [Emc-users] following error only while homing

emc-users@lists.sourceforge.net> > Sent: Tuesday, June 20, 2017 9:00:22 AM > Subject: Re: [Emc-users] following error only while homing > > Andy, you are correct it is related to using index. Homing works fine if I > don't use index. The encoder reset makes sense as to why it CAN

Re: [Emc-users] following error only while homing

: "Tom Easterday" <tom-...@bgp.nu> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Tuesday, June 20, 2017 9:00:22 AM Subject: Re: [Emc-users] following error only while homing Andy, you are correct it is related to using index. Homing

Re: [Emc-users] following error only while homing

; To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> >> Sent: Tuesday, June 20, 2017 4:27:46 AM >> Subject: Re: [Emc-users] following error only while homing >> >>> On 20 June 2017 at 03:51, <tom-...@bgp.nu> wrote: >>>

Re: [Emc-users] following error only while homing

- Original Message - > From: "andy pugh" <bodge...@gmail.com> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Sent: Tuesday, June 20, 2017 4:27:46 AM > Subject: Re: [Emc-users] following error only while homing &g

Re: [Emc-users] following error only while homing

On 20 June 2017 at 03:51, wrote: > Why would I get a following error only while homing I think it is probably because you are using HOME_USE_INDEX (which will zero the encoder at the index pulse) and feeding the encoder feedback back into LinuxCNC. Now, this is perfectly

[Emc-users] following error only while homing

Why would I get a following error only while homing (latest Linuxcnc 2.7.9)? I recently added home switches to my machine. My machine has encoders on the steppers on each of the 3 axes so I want to use the index pulse for home. I set up the homing sequence each axis and when I do "Home All"

Re: [Emc-users] Following error on angular axis

Peter, It is geared down 4:1, so 40 degrees of shaft rotation for 10 degrees on the axis. Regards, Eric A plot would help, is ths 10 degrees of motor shaft position? -- Find and fix application performance issues

Re: [Emc-users] Following error on angular axis

-Original Message- From: Peter C. Wallace [mailto:p...@mesanet.com] Sent: Thursday, April 14, 2016 10:40 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Following error on angular axis On Thu, 14 Apr 2016, Eric H. Johnson wrote: > Date: Thu, 14 Apr 2016 09:20

Re: [Emc-users] Following error on angular axis

nced Machine Controller (EMC)'" <emc-users@lists.sourceforge.net> > Subject: [Emc-users] Following error on angular axis > > All, > > > > I am trying to lick a problem with following error on an angular axis (A). I > am using a Mesa 7i43 with the 7i33 quad servo interface. If I s

Re: [Emc-users] Following error on angular axis

- Original Message - > From: "Eric H. Johnson" <ejohn...@camalytics.com> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Sent: Thursday, April 14, 2016 9:20:01 AM > Subject: [Emc-users] Following error on angul

Re: [Emc-users] Following error on angular axis

Todd, It is velocity mode. I am running headless so it is a bit of a pain to setup for running things like halmeter and halscope unless I setup something like VNC. I won't be able to work on it until tomorrow, but will look at this then. Thanks all, Eric Is the following error proportional

Re: [Emc-users] Following error on angular axis

ler (EMC)" <emc-users@lists.sourceforge.net> Sent: Thursday, April 14, 2016 9:20:01 AM Subject: [Emc-users] Following error on angular axis All, I am trying to lick a problem with following error on an angular axis (A). I am using a Mesa 7i43 with the 7i33 quad servo interface. If I set the

Re: [Emc-users] Following error on angular axis

> All, > > > > I am trying to lick a problem with following error on an angular axis (A). I > am using a Mesa 7i43 with the 7i33 quad servo interface. If I set the axis > max_velocity above about 2 RPS I start getting following errors on G0 moves > with any reasonable value for FError (i.e.

Re: [Emc-users] Following error on angular axis

On 14 April 2016 at 14:20, Eric H. Johnson wrote: > The motor > should be capable of almost 60 RPS. The encoder is 500 count, 2000 with > quadrature, so only a little over 1Khz / 4Khz when I start to see the > problem. If you set the f_error to be very large indeed, how

[Emc-users] Following error on angular axis

All, I am trying to lick a problem with following error on an angular axis (A). I am using a Mesa 7i43 with the 7i33 quad servo interface. If I set the axis max_velocity above about 2 RPS I start getting following errors on G0 moves with any reasonable value for FError (i.e. under 10 degrees).

[Emc-users] Following Error

Hello All, I was wondering is there any way to be able to set in the INI, the following error based on what the commanded feed rate is, Looking thru all the other machines in the shop, the following error is based off of, how many thousands per commanded inches per minute of feed, following

Re: [Emc-users] Following Error

On 23 October 2014 12:41, Rick r...@superiorroll.com wrote: I was wondering is there any way to be able to set in the INI, the following error based on what the commanded feed rate is, If the INI file has both a MIN_FERROR and an FERROR entry then the allowable error linearly scales between

[Emc-users] Following error pin

I have two motor drivers (for axis 4 and 5) which have alarm signal telling me that motor is off position, and would like to connect that in linuxcnc, so when it is active it would trigger following error for certain axis. Which hal pin can I use for that input signals to connect on to?

Re: [Emc-users] Following error pin

On Tue, Oct 08, 2013 at 03:37:49PM +, Tomaz T. wrote: I have two motor drivers (for axis 4 and 5) which have alarm signal telling me that motor is off position, and would like to connect that in linuxcnc, so when it is active it would trigger following error for certain axis. Which hal pin

Re: [Emc-users] Following error pin

On 8 October 2013 16:37, Tomaz T. tomaz_...@hotmail.com wrote: I have two motor drivers (for axis 4 and 5) which have alarm signal telling me that motor is off position, and would like to connect that in linuxcnc, so when it is active it would trigger following error for certain axis. I

Re: [Emc-users] Following error pin

Motors are step/dir controlled hybrid steppers that have encoder, and encoder feedback goes only to drivers so linuxcnc doesn't see actual position, and the only thing I could use is alarm signal from driver that would trigger linuxcnc to stop. If it helps, this is driver used in system:

Re: [Emc-users] Following error pin

Motors are step/dir controlled hybrid steppers that have encoder, and encoder feedback goes only to drivers so linuxcnc doesn't see actual position, and the only thing I could use is alarm signal from driver that would trigger linuxcnc to stop. If it helps, this is driver used in system:

Re: [Emc-users] Following Error with Steppers

I've often wondered if a configuration wizard for each family of cards would make more sense and have less confusion with a newbee by having fewer options to work through. I even started one for the 5i25 once until I figured out that Chris had 5i25 in pncconf. JT On 10/5/2013 6:26 AM, andy

Re: [Emc-users] Following Error with Steppers

As usual I think I phrased that wrong... If the 5i25 7i77 and 5i25 7i76 was separate then it would be much easier for the majority of users IMHO. By family I guess I meant the 5i25 and daughter cards. I'd bet the 5i25 has become the most poplar with LinuxCNC users. And then there is the ever

Re: [Emc-users] Following Error with Steppers

Date: Mon, 7 Oct 2013 12:12:00 -0500 From: bjt...@gmail.com To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Following Error with Steppers As usual I think I phrased that wrong... If the 5i25 7i77 and 5i25 7i76 was separate then it would be much easier for the majority

Re: [Emc-users] Following Error with Steppers

...@mastercut.co.za To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Following Error with Steppers Chris It seems that the erronous lines are gone but I just realized that I cannot change the location where the files are generated to. I was running form a dev RIP and the files

Re: [Emc-users] Following Error with Steppers

On 2013/10/05 06:54 AM, Chris Morley wrote: Thanks for that. Some times I think PNCconf is linuxcnc's red hair stepchild. I think most Devs underestimate the importance of what it is trying to achieve. But just about when I'm ready to remove it from linuxcnc someone mentions it was very

Re: [Emc-users] Following Error with Steppers

On Sat, 5 Oct 2013 04:54:44 +, you wrote: Thanks for that. Some times I think PNCconf is linuxcnc's red hair stepchild. I think most Devs underestimate the importance of what it is trying to achieve. But just about when I'm ready to remove it from linuxcnc someone mentions it was very

Re: [Emc-users] Following Error with Steppers

On 5 October 2013 05:54, Chris Morley chrisinnana...@hotmail.com wrote: Thanks for that. Some times I think PNCconf is linuxcnc's red hair stepchild. I think most Devs underestimate the importance of what it is trying to achieve. I think that folk tend to under-estimate just how difficult it

Re: [Emc-users] Following Error with Steppers

Subject: Re: [Emc-users] Following Error with Steppers On 2013/10/05 06:54 AM, Chris Morley wrote: Thanks for that. Some times I think PNCconf is linuxcnc's red hair stepchild. I think most Devs underestimate the importance of what it is trying to achieve. But just about when I'm ready to remove

Re: [Emc-users] Following Error with Steppers

On Saturday 05 October 2013 12:04:59 Belli Button did opine: Hey no! We love PNCconf, for an initial setup it the fastest method to get about 90% done. Life would be miserable without it (really). I hereby nominate that for the understatement of the year. I hope also that I have headed off

Re: [Emc-users] Following Error with Steppers

Date: Thu, 3 Oct 2013 16:20:51 +0200 From: mar...@mastercut.co.za To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Following Error with Steppers Chris This is a very old bug that has been reported several times. At least once by myself. It is still in all the latest code

Re: [Emc-users] Following Error with Steppers

in the RIP directory that you are working in? On 2013/10/04 08:06 AM, Chris Morley wrote: Date: Thu, 3 Oct 2013 16:20:51 +0200 From: mar...@mastercut.co.za To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Following Error with Steppers Chris This is a very old bug that has been reported

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