I loved this idea of the ratchet to save from brake torque so I remixed it for my motor setup. You have to mount the motor slightly differently so I used the motor mount from Diplomator.
UPDATE: see my new model https://www.printables.com/model/632293-one-way-gear-clutch-for-motor-drive
The author remixed this model.
I changed the hex mount so that I could attach to the motor drive by Bird2Brain.