What makes planetary gearboxes so amazing?

I knew planetary gearboxes were fascinating before making this video, but I didn't realize how amazing they actually are. My mind was blown when researching information for this video. In this video I use a 3d printed gearbox to demonstrate just a few of the reasons why planetary gearboxes are so useful.

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#3dprinted #gearbox #planetarygears #ender3pro #gearratio