Thingiverse
Planetary Gear Coaster
by DrLex
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**There will be no more updates to this page. [Go to the new GitHub page for the latest updates.](https://github.com/DrLex0/print3d-planetary-gear-coaster)**
Inspired by Jangles1981's [gear coaster](http://www.thingiverse.com/thing:1828298), this is a variation with planetary gears. The top and bottom rotate relative to each other, with 4 planet gears attached to the top and driven by a sun gear in the bottom.
You can add an optional outer ring, which is not only useful to prevent your dri
Inspired by Jangles1981's [gear coaster](http://www.thingiverse.com/thing:1828298), this is a variation with planetary gears. The top and bottom rotate relative to each other, with 4 planet gears attached to the top and driven by a sun gear in the bottom.
You can add an optional outer ring, which is not only useful to prevent your dri
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