3D-printed gearboxes are always an interesting design challenge, especially if you want to make them compact. [ZeroBacklash] created a little strain wave gearbox (harmonic drive) for when you want to ...
Lower gearing is a pillar of off-road performance. It allows the engine to turn bigger tires more easily and move your 4x4 over trail obstacles. But adding gearing has often meant expense in axle ...