Adapter plate to mount NEMA-23 motor in NEMA-34 mount

Allows you to mount a NEMA-23 motor in a NEMA-34 motor mount. Update: see for a better design.

3D printer parts and enhancements

Creative Commons Attribution Share Alike

Commercial use is allowed, you must attribute the creator, you may remix this work and the remixed work should be made available under this license.

Learn more or download attribution tags


I wanted to test a screw drive in my printer, but the mechanism I pulled from an industrial machine had a NEMA-34 size 200W servomotor. I didn't have a driver or power supply for the servomotor so I decided to mount a NEMA-23 stepper on the mechanism. This is the plate I designed to do the job.

I printed with 0.2mm layers, 50% fill, no support, no raft, no brim.

Materials and methods

- your favorite color ABS
- screws, nuts and washers to fit a NEMA-23 motor
- screws, nuts, and washers to fit a NEMA-34 motor mount



Issues are used to track todos, bugs or requests. To get started, you could create an issue.


6a6a2c0f50b667e4badc06c5a2bb2c46?default=blank&size=40Dwyndal added this to the Motor addon collection ago
Mini gold hands croppedMark Rehorst published this design ago