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 ...

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

3D printers are good for a lot of things, but making parts for power transmission doesn’t seem to be one of them. Oh sure, some light-duty gears and timing belt sprockets will work just fine when ...

Topology optimization is rapidly gaining popularity in the world of engineering, particularly in 3D printing, and is known for its distinct, almost organic-looking shapes. Now, one car company is ...