I'm a 15 Year Old Wannabe Engineer, This Is a Cycloidal Gearbox I Built

In plain words

This is a documentation of a cycloidal gearbox design built by a young engineer. The project showcases the mechanical principles and construction methods behind this type of gearbox, which uses a cycloidal motion to achieve high gear ratios in a compact form. The work is available on GitHub, making it accessible to others interested in mechanical engineering, gear design, or DIY engineering projects. It stands out as a practical demonstration of advanced mechanical concepts executed by someone at the secondary education level.

written from the facts on this page · September 2026

From the sources

This is my cycloidal gearbox I built, and the python script I created to generate it! A cycloidal gearbox is a type of gearbox that allows you to turn rotational speed into torque. This gearbox was a handcranked gearbox specifically meant to test the validity of the python cycloidal generator. It had a gear ratio of 1:9. This design was a micro cycloidal gearbox with a ratio of 1:9, meant to only take up the same footprint as a NEMA 17. Due to the tight tolerances needed for a small cycloidal drive and the lack of precision offered by 3D printing, this design did not work. This gearbox was the first working version to run on a NEMA 17. It has a larger footprint compared to Version 2…from github.com

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