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] ...

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 ...

This awesome 3D printed RC car chassis switches to GPM differentials with hardened steel parts, reducing bearing race wear in printed housings ...

A giant, high-speed 3D printer is producing large, ultra-strong steel components and weapons for the US Army. It may also have non-military uses. The prototype printer, commissioned from 3D Systems in ...