I have completed a retrofit on my cnc lathe junking about 20kg of transistors for a wonderful little dual drive - Everything has gone well even for an idiot like me.
Where I am having some difficulties is with cutting arcs repeatedly in a subroutine using Mach3. After about 30 cuts the tool point has drifted by about 1mm. I have checked and double checked the G code and do not believe that that is the problem. I have done a physical tune up of the lathe adjusting gibs backlash in the drive belts and lubricating everything I can think of. I do not think this is noise because it is repeatable every time (and anyway I followed the instructions on shielding).
I was wondering if the drives were loosing counts. My encoders are 2000 line encoders and I am using 4x multiply.
Could I need to retune the motors after all of my adjustments? Would a minor tuning issue cause position drift?
Can I spy on the encoders with a dual drive or does that only work for the single drive software?
I am very pleased indeed with my drive it was excellent value for money.