Hi there
I have been trying to retrofit an espirit lightning plasma table using a csmio ip/a motion controller and i have to say i have gotten on better than i thought i would

I had quite a number of small issues along the way, but i have managed to get x and y axis moving,
The Y axis auto tuned pretty good (max error 140 at 200mm per minute set in motor tuning, not sure if that is any good or not!) but auto tune sends the X axis all over the shop,
Part of the reason is because i fiddled with the pots on the servo drive card itself, but didnt on the Y axis,
I have a manual for the servo drives (digiplan UD12) but the settings in the manual dont match up to what i have on the drive,
The other problem i think might be the motor settings in mach 3, i dont know exactly how to get the correct 'steps per'
My encoders say they are 500ppr, they are fitted on the gearbox spindle not the motor spindle itself, not sure if that makes a difference.
The gear reduction is 15:1, the motor max rpm is 4700,
feed is (fairly accurately measured:laughing: ) 12mm per motor rev, or 180mm per pulley rev for the Y axis
and 8mm per motor rev or 120mm per pulley rev for the X axis
Anyone able to help me calculate steps per?
also, is it normal for the axis to overshoot and bounce back when you are jogging it around? or should it stop dead?
Im new to this so sorry for the million stupid questions!!
Any other tips for motor tuning greatly received!!
cheers!!