I have a retro CNC machine (EMCO F1P) in my garage that I am currently tinkering with. I would like to replace the old motor control but use the existing step motors. Unfortunately the documentation is scarce, and so I decided to pick one motor apart to see if I could learn anything from it.
Turns out it has 10 wires going into it and 10 windings inside. Each winding pack looks like it has only two wires coming out of it. The wiring diagram is the PCB visible in the picture:
So with my limited understanding of step motors I could need some help determining the parameters for this motor. Is it unipolar or bi-polar? How many steps per revolution does it have? How can I find a driver that will work for it, and how would I know which wire goes where?