Machsupport Forum
Third party software and hardware support forums. => CS-Lab => Topic started by: KAWCNC on March 15, 2014, 05:45:36 AM
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Hi,
After updating CSMIO firmware(three updates ago incl. the latest 2.200) when using the MPG the mowement was not smooth anymore.
Before the update the steppers moved VERY smoth when using the MPG in all scale settings, but now the steppers sound like a sick bird!
Please check attached sound file(Play it in Windows Media Player).
It sounds like it is something wrong with the acceleration, but i can not find any place to adjust the acceleration for the MPG.
Adjusting acceleration in Motor Tuning does nothave any effect on the MPG.
When running a G-code, or jogging with arrow keys, the steppers are running smooth as silk!
Anyone had the same issue or maybe have a suggestion how to solve it?
Controller: CSMIO IP/S
MPG: CSMIO-MPG
Drivers: Kinco 2M2280N
Roy
(Norway)
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Have you contacted CS Labs?
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No, I have not done that yet, it seems to be many smart people on this forum, and I was hoping to solve the problem this weekend.
Roy
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Go back to the previous version and see if the problem goes away.
I updated my Chiron today to 2.2 and never noticed any difference but it is servo and using an IP-A.
I have an IP-S on a lathe but have not updated, it too has servos but if I get a chance I will update on Monday (having a day off to do paperwork tomorrow :( ) and see if there is a change.
Hood
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Just tried 2.2 plugin on the wee lathe and its fine. As said I use servos so probably not a perfect comparison.
Hood
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Update:
Contacted CS-Lab and they have now found the problem, they did not say what it was, but it will be fixed in the next plugin version.
Roy
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Good they found it, hopefully it will be updated soon. I have found CS-Lab to be very good at that, any issues reported are fixed up quickly and an update posted, all usually within a week at most.
Hood
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I have two machines with CSMIO IP/S and my experience with CS-Lab is also very good!
I first tried other controllers(will not mention brands), but the CSMIO IP/S is absolutely fantastic and in a class of its own!!!
It is like living in a world with no limitations!
If you can not afford one, stop eating for a while or sell a kidney so that you can get one. ;)
Roy
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Ha ha dont think I would recommend someone goes that far ;D
I have the IP-S and the IP-A and have fitted an IP-M to a small machine I did for someone else. All three are excellent, the IP-M obviously the basic one but of the other 2 the IP-A edges out in front due to the feedback to Mach, of course for that you need analogue capable servo drives.
Hood
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Similar issue here. Wheel causes jerky motion, all other runs smooth.
Will there be a firmware update?
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Johann,
CS-Lab indicated a new plugin within a few weeks.
Roy
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Just tried 2.2 plugin on the wee lathe and its fine. As said I use servos so probably not a perfect comparison.
Hood
I use servo's too and although you might not hear a difference it is obvious that the steps are "shorter". At certain revs of the hand wheel it causes a motion as if attached to a rubber band. Also on my Z axis the brake is making more noise compared to before.
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Just tried 2.2 plugin on the wee lathe and its fine. As said I use servos so probably not a perfect comparison.
Hood
I use servo's too and although you might not hear a difference it is obvious that the steps are "shorter". At certain revs of the hand wheel it causes a motion as if attached to a rubber band. Also on my Z axis the brake is making more noise compared to before.
I can assure you I do not suffer from this issue, I dont use the small lathe much but today I fired it up to check this again but this time more thoroughly and it does not display this problem. The Chiron I use daily and again does not display this issue.
Why some people have this issue and some not I am unsure, maybe acceleration differences?
I am sure CS-Lab will get it sorted soon, for the people that have the issue, in the mean time I think if I had the issue I would just revert to the previous version as that should clear up the issue.
I dont understand about your brake, how is that configured?
Hood
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I dont understand about your brake, how is that configured?
Hood
The brake is driven from the servo, Delta ASDA-B2. At or below a certain slow speed the brake is engaged after each step, at faster motion it stays open. I guess engaging is related to the pulse length. Now at the higher 0,1 MPG speed it sounds like the brake is engaging more often.
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That doesn't seem to be the normal way for a brake to be applied, the norm is disable the brake when the drive is enabled and vice versa.
That of course is just an observation and would not stop the issue you are having with the MPG module.
I am curious as to what your velocity and accel are.
One thing I can say is the MPG motion changed way back to a much more rigid control than it initially was. I reported that to CS-Lab at the time and they basically said MPG had been changed because people with certain systems had been complaining about over run when they stopped winding the MPG. My thoughts were it was basically people with slow acceleration, most likely steppers that were seeing that issue and due to these changes the fluidity of the MPG for people with servos and fast acceleration was adversly affected. I wonder if this is a continuation of that initial change or possibly an attempt to find a happy medium.
I would say I have certainly not noticed any change on my machines latterly so maybe I am barking up the wrong tree all together.
Hood