The clock features a series of 3d-printed gears, all driven by a single stepper motor that [ekaggrat] found in surplus. The clock’s controller is based around an ATtiny2313 programmed with the ...

This 3D printed Earth clock built by [Simon Rob] promises to do just that. The build consists of an Arduino Nano driving a stepper motor, which turns a 3D printed model of the Earth through 360 ...

The Manifold Clock Kickstarter project embraces the mathematical concept of Riemann surfaces to create an artsy 3D timepiece that expresses time through shape and movement.