Apollo Clock

thingiverse

UPDATE 3 March 2020: Updated various parts for smoother rotation, added LED backlighting, and improved documentation. See Apollo Clock_RevA.pdf for details. This is a 3D-printed clock with an Apollo theme using compound planetary gears and a stepper motor drive. The moon orbits the earth once every 12 hours, with a Lunar Module orbiting the moon just for fun. A Command Module orbits the earth once per hour and spins unnecessarily. The earth spins once per minute. The south pole faces out for proper rotation direction and aesthetics. Non-printed parts are kept to a minimum to reduce costs. Filament (I used PLA) is required, along with a 3mm rod, M1/M2/M3 screws, plastic BBs, a rubber band, and about $20 in electronics. The plans allow for LEDs, which I have not yet added. Refer to PDF for assembly instructions. Timelapse: https://www.youtube.com/watch?v=APDj2XSgm9U Tinkercad model: https://www.tinkercad.com/things/7t096SUfR9u-apollo-clock-reva The following things were used or remixed in this design (thanks!): "The moon" - https://www.thingiverse.com/thing:1014620, "Gridded Globe” - https://www.thingiverse.com/thing:2674988, "One Small Step” - https://www.thingiverse.com/thing:266725, “Micro Apollo Mission with Stand” - https://www.thingiverse.com/thing:3758364