Andrew sent us a link to his LEGO ball contraption. It consists of conveyor belts, lifts, and sawtooth mechanisms. He plans on bringing this to one of the Great Ball Contraption events.

Having recently gotten back into Lego, and wanting to build something cool that I could also bring to Lego events, I decided to make a few Great Ball Contraption (GBC) modules. Inspired by the action of the three all put together, this video became a fun project to see how dramatic moving little soccer balls around a circuit could be…

A little more about the LEGO ball contraption