You can get just about any gear reduction you want using conventional gears. But when you need to get a certain reduction in a very small space with minimal to no backlash, you might find a wave drive ...

This time I've balanced the drive by using two cycloidal discs 180' out of phase with each other. I've also made the cam shaft much thicker and robust by screwing an M4 bolt through the middle of it.

In response to a heightened awareness of climate change as well as sustainability goals and regulations associated with it, 3D printing is steadily being used for more sustainable manufacturing. 3D ...