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Herringbone Split-Ring Planetary Gear Fidget
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A print in place split-ring planetary gearbox.
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Model information
- Source
- Printables
- Category
- Other Toys & Games
- License
- Creative Commons — Attribution — Share Alike
As you turn the sun gear, the planet gears turn as usual, but the ring gear turns too, due to a second stage with different gear ratios. I designed this from scratch, but it's loosely based on Emmett Lalish's design, with the same hex hole size, gear pitch, first stage tooth number and outer diameter of the first stage.
I thought this was the first ever print in place split-ring planetary gearbox, until I found this design (https://www.thingiverse.com/thing:3511382). Oh well!