This is a really nice, compact tabletop Rolling Ball Sculpture with four tracks squeezed into the frame — two fast tracks and two long tracks.

The first fast track is a tall skinny coil with a neat “S” shaped exit. The other is the loop d’ loop, which has a backwards exit that uses the ball’s own backspin to slow it down before continuing down the track.

The two long tracks share the upper part of the RBS before splitting off to opposite sides in the lower half. Between them there are three track splitters, a ball-collecting tipping arm, a regular tipping arm, horizontal zig-zag track, a flat spiral, a few dips and lots of curvy back-and-forth track.

All four tracks eventually merge into the collector plate at the bottom, where the balls line back up for another trip up the chain lift.

This RBS uses 1-1/2" acetal resin balls. They’re nice and quiet, and one advantage of these balls is that they can be dyed just about any color.

100% stainless steel, TIG welded.