Planetary Orrery

grabcad

This orrery features planetary gears as its orbital velocity reducer. Currently, it seems this design doesn't print well on hobbyist FDM machines, which is unfortunate and will be addressed in the future. Thanks to Paul Battram for his contributions. Initially, I intended laser sintering for part production but aiming for compatibility with simpler FDM printers. It's a 3D printed design suitable for children, offering infinitely adjustable planet positions for studying retrograde motion. Have fun!