I'll try to explain a little better, this is not a cnc machine, but it has an X axis left to right, the guy holds 2 handles 1 in each hand when he has moved to the right he has to manually move the head down IE: put on a cut but when he take 1 hand off the handle does not matter which handle the spindle stops rotating. the machine only rotates when the guy has both hands on.
What I want to do is put a stepper motor and control it with either a trigger switch or two buttons for the guy to power the head up & down without him taking either hand off the handles and the spindle keeps revolving.

Phill