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Henry Segerman (mathematician and 3D printing guru) discusses how to make three gears work together. Skew dice: https://youtu.be/u AnCL3vhVIs Prime Num (more)

Henry Segerman (mathematician and 3D printing guru) discusses how to make three gears work together.
Skew dice: https://youtu.be/uAnCL3vhVIs
Prime Numbers Playlist: http://bit.ly/primevids
Prime Machine: https://youtu.be/8UqCyepX3AI

You can buy the gears from Henry at Shapeways: http://bit.ly/HenryGears

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