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 ...

Gearboxes let engineers adjust servomotors’ operating speed and resulting torque. But understanding the two major types will lead to lower costs and better performance. Engineers have long used ...

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 ...