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General Mach Discussion / BACKLASH PROBLEM MACHV3.042.020
« on: March 14, 2009, 09:53:23 AM »
Is there a known problem or has anybody else experienced backlash problems with MACH R3.042.020
current lockdown version?
In trying to help two guys out with their backlash on their lathes and here is the common problem.
All jogging and backlash is working fine, then after some time, and "all of a sudden", The backlash seems not
to be implemented on direction change, during a jog the Z axis will ramp up to speed and then ramp down say over
a long travel distance, say 3" , come to stop, pause, then a short burst ( think it now implements the backlash).
It will do this constantly once it starts this behavior. The only way to stop it is to set the Shuttle Accel to "0"
and all seems to work well. Now if you go out of MACH and come back in and again reset Shuttle Accel to some
more appropriate value , back comes the problem. In one case thought it was gone and it did this wierd axis
change while durng threading, of course the piece was ruined.
I need to try and narrow it down more, but anything that i could think just didn't seem to work.
Any experience on this one or thoughts on the matter?
RICH
current lockdown version?
In trying to help two guys out with their backlash on their lathes and here is the common problem.
All jogging and backlash is working fine, then after some time, and "all of a sudden", The backlash seems not
to be implemented on direction change, during a jog the Z axis will ramp up to speed and then ramp down say over
a long travel distance, say 3" , come to stop, pause, then a short burst ( think it now implements the backlash).
It will do this constantly once it starts this behavior. The only way to stop it is to set the Shuttle Accel to "0"
and all seems to work well. Now if you go out of MACH and come back in and again reset Shuttle Accel to some
more appropriate value , back comes the problem. In one case thought it was gone and it did this wierd axis
change while durng threading, of course the piece was ruined.
I need to try and narrow it down more, but anything that i could think just didn't seem to work.
Any experience on this one or thoughts on the matter?
RICH