This Tetrix motor accessory holds the cable and connector provided snugly onto the motor, to prevent it from falling off due to shock or bumps. This just fits most motors (there are some models that are slightly larger), and stays on snugly. Tested on a Printrbot Simple Metal using Filamex PLA. There are no overhangs once the part is properly oriented on the bed. Bitcoin donations: 1EYhYbBKRSM85EaoUbgQmnCwQerQWL99so, or on redpah, at https://www.redpah.com/product/1169/tetrix-motor-connector-capThis was made using Autodesk Inventor. Simply printing this at 0.3 or 0.1 mm or comparable resolution in PLA seems to work well. ABS was not tested. Due to an issue with my export toolchain, the model will need to be rotated by 180 degrees in the X or Y axis. I have used both concentric and rectilinear top/bottom infills successfully.