We are in the midst of retro fitting a Lucas Horz. Boring Mill
We are having drifting problems when connecting the SS and trying to control w/ Mach.
It seems to work fine and tune w/ the parallel port, but as soon as we use the USB all 4 axis start drifting.
Any help appreciated...

Lucas servo drive is:
108,567 D

Rutex MB & SS card:
R2040 step/dir

MachMotion I06 motion control board