(screwless) Hyperbolic Planetary Gearset

thingiverse

This is a remix of the cool Hyperbolic Planetary Gearset by jsteuben. I modified the tri-joint and connecting-rods so that no screws are needed; the entire thing now just snaps together. I also made the central "24 90" gear slightly narrower to enable the gears to spin smoothly. And I added a handle to the "small hex key" to make playing with the gears more fun :) Just a note: this is not actually a "planetary" gearset, although I kept the original title. It is a cool gear assembly, prints well, looks amazing, and it's fun to play with, but in an actual planetary gear there's an outer gear which rotates around the inner gears. Instructions Printed using standard settings on Makerbot Rep 2, with rafts. The gears, connecting rods, and hex key will print best vertically. Print: 2 x tri-joint 3 x connecting-rod 3 x skewgear involute 12 90 1 x skewgear involute 24 90 1 x display base 1 x hex key Choose colors for maximum fun To assemble the gearset: slide the three connecting rods through the outer (12 90) gears, and make sure they are turning smoothly position the central gear (24 90) on one of the tri-joints (the "bottom") insert the three connecting rods with outer gears into the holes of the bottom tri-joint, meshing the gears with the central gear. The assembly should turn smoothly. insert the other ("top") tri-joint into the central gear, without plugging in the connecting rods (yet) one-by-one, push the connecting rods into the top tri-joint. This takes a little force, but once each is positioned it will snap into place. spin your gears! Use the hex key as appropriate...