Fidget Spinner
thingiverse
Designed for young kids, this spinner is less than two quarters across. Here's a five-second YouTube video of the spinner in action with a four-year-old: https://youtu.be/uvbXZHcvOgU You'll need these parts: 1. One 3D printed spinner 2. Two 3D printed holder caps 3. A bearing (available at https://amzn.to/2NppQiB) 4. Three balls (available at https://amzn.to/2xD6oUF) This project was printed with filament from https://amzn.to/2xwO14v, which works great for me - a full roll prints without any extruder jams.
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