This sculpture is a great example of what an RBS can do if you try even harder. This “crazy random machine” has two separate power switches and speed controls—one controls the chain lift, while the other controls the spinning randomizer disk at the top. By changing the speed of the disk, you never quite know which track a ball will end up on.

After being carried to the top by the chain lift, the balls enter the spinning disk from two sides. One side feeds a single ball while the other has a ball-collecting tipping arm that releases three at once. They empty onto the spinning disk, which randomly distributes the balls into four different tracks.

From there we have two different loop d’ loop sections, a tall vertical zig-zag, tall skinny spirals, flat spirals, multiple ball-collecting tipping arms, lots of track—and one element that is honestly just too complicated to explain.

There’s even a Newton’s cradle built into the sculpture. A ball exiting one of the loops strikes another ball, sending the ball at the opposite end back down the tracks.

There is a ton of action on this piece, with ten or more balls sometimes rolling at the same time. Eventually all four tracks merge into the flat collector plate at the bottom, and the balls head back to the chain lift for another trip.

100% stainless steel, TIG welded.