This Cube Made of Gears Shouldn't Work, But It Does

Watching this cube slowly turn itself inside out as its internal gears mesh together is a mesmerizing and puzzling experience. It looks like it should never work, but it does.

I have a degree in engineering. Hell, I have a PhD in engineering. I (kind of) know how it works. But it still looks like magic to me.

It's of little practical use, sure — but it does illustrate how powerful 3D printing, the process used to create this thing of wonder, can be. The beauty of 3D printing is the way it can turn a theoretical, abstract idea into something tangible without the need for craft skills. In fact, in that vein, over at Thingiverse there's a bit of a trend for using 3D printers to turn all kinds of solid shapes into complex gear systems.

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Though I wouldn't spend too long trying to design your own, because the 3D CAD files are freely available online. Now all you need is a 3D printer. [Cube Gear via Boing Boing]

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RuBBa_cHiKiN
RuBBa_cHiKiN: North Gizmodo is Best Gizmodo

As trippy as it is, it was the related videos that really made me go "WTF?"

Take this, for example. What exactly is the point of it? What purpose does it serve?