wooden automata hand crank | Hand-cranked mini ball track soon to be available in kit form
Step by step make your own marble machine.
Viewed from the top, this 18th century device designed by James Ferguson, is an amazingly complex clock. Viewed from the side, its role as an orrery (planetary model) becomes apparent.
Bruce Gray - "Soundtrack" Kinetic Art Rolling Ball Musical Wall Sculpture
A mechanical model of the solar system with planets turning around the sun. It was named after the Earl of Orrery who commisioned a watchmaker to construct a model of Newton’s planetary motions in 1700.