Lego Monorail Motor

A LEGO Monorail motor cost 50$, so I decided to design a Monorail motor. This motor uses ball bearing and metal axles.
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updated January 12, 2025

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A Monorail motor costs 50$, so I decided to design a Monorail motor. 

This motor uses one ball bearing with the diameter of 9mm, 3mm high and a hole of 5mm. You also need 2 metal axles with the measurements 25mm x 2mm.

These parts were printed on a prusa mini with 0.1mm layer height and Maertz PMMA-1002-005 Polyactic-Acid matt PLA Filament, you might need to adjust tolerances on other setups.

See a video of it running:

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