Sun, Earth and Moon Model

A handheld model where the Earth spins and goes round the Sun while the Moon goes round the Earth, all driven by gears.

It makes day and night, the year, the Moon's orbit and the phases of the Moon concrete, and shows why we always see the same face of the Moon.

Design by Ravindra Godbole on Printables, shared under CC0 1.0 (public domain). The files and photos are the designer's, unchanged.

1. Print the Sun in orange, the Earth in blue and the Moon in white. The spheres need supports.
2. You also need 2 mm and 3 mm metal rods as axles.
3. Shine a torch from the Sun's position in a dark room and turn the model to show the Moon's phases and an eclipse.