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 ...

This 3D printed planetary gear fidget spinner is a fascinating mechanical design that seems like it could spin forever. The intricate gear system moves smoothly, creating a satisfying motion that’s ...

Parol 6 is a 3D-printed six-axis robot arm created by [Petar Crnjak] as a combination of the principles from a few previous projects. Aside from a pneumatic gripper, each axis is driven by a stepper ...