Moore curve marble run is a fascinating, 3D-printable project that uses a motor to push marbles. The motorized run incorporates a lift with a spiral guiding rail and steeper slopes for acceleration.

We’ve seen some amazing fan-made marble runs lately. Some are made out of cardboard, and some of LEGO. But thanks to the folks at Laughing Squid, we’ve found one movie fans will especially love. We’ve ...