In one little corner of YouTube is a small but vibrant community sharing videos about gearboxes of their own design, particularly those with very high ratios or other quirky features. Adherents of the ...

3D printed gearboxes are great for experimental designs, but due to roughness and inaccuracies in the printed surfaces, they can wear quickly and be rather noisy. As a possible alternative, [Resetman] ...

Manual gearboxes are pretty simple. I remember my high school physics teacher diagramming one on the chalkboard: power goes in on one shaft, goes through a couple of wheelie-looking things, and boom, ...

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