Paul Nylander is behind some amazing math arts. Take this 3D printed gear light. All its gears are engaged and can rotate. Since the gears are tied together like chain links, the only way to make this is by 3D printing it. Paul also has motorized all 92 gears of this version. If you want to purchase these creations, you need to contact the artist on his website.
More gadgets like this: here
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