....
I am not so sure, I thought that Mach could also run servo motors
also.

Pete is going to jump all over this one, so listen to his opinion
also.

Mach sends out step pulses only, no feedback. A work around step to
servo amp is made to use servos with Mach. A huge kludge in my
opinion. I will conceed this is an opinion not held by all.

Karl