Planetary Compartment Container
This container has three separate compartments, turning the knob on top of the container indexes through the different compartments at a 4:1 ratio. This is done with the use of a planetary gear stage on the bottom of the container. Turning the knob drives the sun gear which causes the carrier to spin which in this case is the inner dividing cylinder. The 4:1 ratio is a result of the planetary gears rotating quicker around the larger 32 tooth ring gear verses the smaller 12 tooth sun gear.
Size The OAL's are 135mm tall by 94mm in diameter.
Other Planetary Containers: Mini Pencil Egg
This container was derived from the Mini Planetary Demo Unit that I designed to learn more about planetary gears. Check that one or the [Original Demo Unit I made out, it really helps to better understand how these gears work when you can hold it in your hand. You may find they are more complex than you thought.
Print instructions
Prints in place, designed for a .4mm nozzle, .2mm layer heights, no supports at 100%.
After printing mine, I added a hex hole to the design of sun gear. If you need to free the gears up, do it here with a 6mm hex wrench, don't over torque the knob because the shaft could fail.
Printed with 3D Fuel’s Silver PLA
Printed on the Muldex rep-rap IDEX printer.
Support and Licensing If you would like to help support more free models, or get permission to sell physical copies of my models, consider joining my Patreon