1991
General Mach Discussion / Re: erratic behavior on servo machine
« on: August 23, 2006, 02:38:54 PM »
Hi, Jerry
If it was working before you rebuilt the X axis.
I dought the Gecho's or tuning, If thay are wired correctly and not trip-ing out.
The only way thay could be do-ing that is if the Reset Drive is enabled all the time
The first thing I would do is Zero out your Backlash setting for the X axis or turn it off and under View / Save current settings.
Then restart Mach re-check backlash X is Zero or off.
Then re-check the Steps Per inch number in one direction, be sure the backlash is out by running it in that Dir. some first and verify that
step's required are the same as Config / Motor Tuning / Steps Per are the same number.
Then run it back the other way 1 inch at a slow feed rate, determin the backlash and reset it and turn it back on.
Make sure that your not in Constant Velocity Mode, seems to me there not compatable with each other.
Is your encoder mounted on the servo motor, if not check for backlash there also.
Just some thought's Hear, Chip
If it was working before you rebuilt the X axis.
I dought the Gecho's or tuning, If thay are wired correctly and not trip-ing out.
The only way thay could be do-ing that is if the Reset Drive is enabled all the time
The first thing I would do is Zero out your Backlash setting for the X axis or turn it off and under View / Save current settings.
Then restart Mach re-check backlash X is Zero or off.
Then re-check the Steps Per inch number in one direction, be sure the backlash is out by running it in that Dir. some first and verify that
step's required are the same as Config / Motor Tuning / Steps Per are the same number.
Then run it back the other way 1 inch at a slow feed rate, determin the backlash and reset it and turn it back on.
Make sure that your not in Constant Velocity Mode, seems to me there not compatable with each other.
Is your encoder mounted on the servo motor, if not check for backlash there also.
Just some thought's Hear, Chip