Rolling Ball Sculptures | Marble Machines by Steven Kozari Frank

Marble Machine 8x6x5" No.3

The balls go up on two sides of the helical lift. It has two switches that divide the marbles into four tracks: loop, vertical spiral, a long track near by the side and a fast twisty track. It’s made from copper, wires are soldered together. It is made on a natural-looking beech wood base. Electrical components are engraved at the bottom, speed is adjustable.
Full size with acrylic cover box: 200x160x130 mm. It has 10 mm steel balls.