My Projects

Published 5 Apr 2018

Reusing Stepper Motors


Over the years I have collected many useful looking stepper motors, now it is time to start using them!

Common stepper motor configurations have 4, 5 or 6 wires corresponding to phases wired as follows:
Bipolar stepper motor wiringUnipolar stepper motor wiringUnipolar stepper motor wiring
4 wire bipolar stepper motor6 wire unipolar stepper motor
(drive as bipolar by ignoring centre tap)
5 wire unipolar stepper motor
(unipolar drive only)
Less common stepper motor configurations have 8 or 9 wires corresponding to phases wired as follows:
Bipolar stepper motor wiringUnipolar stepper motor wiring
8 wire bipolar stepper motor9 wire unipolar stepper motor
(unipolar drive only)

Recovered stepper motors

On the sidebar there is a list of stepper motors that I have recovered from various pieces of scrap equipment and the linked pages include basic motor specifications and connection details.

References and Additional Resources

If any referenced page no longer exists, try looking for its URL on http://archive.org.