About this 3D model

Carry marbles up the lift hill using an Archimedes screw and then listen to them gracefully clatter their way back down to the bottom. A great mechanical showpiece for your marble minded friends. No support material needed, but requires a footprint that is at least 7 inches wide and 6 inches tall. If you're interested in printing it dual extrusion I've uploaded the two files I used to print it. Just use Arches Color 1 and Arches Color 2.