If you’re used to thinking about 3D printing in Cartesian terms, prepare your brain for a bit of a twist with [Joshua Bird]’s 4-axis 3D printer that’s not quite like anything we’ve ever seen before.

A few short years ago, a 3D printer seemed like a novelty. But today, the best 3D printers are accessible, print in multiple colors and can build anything from a toy figurine to a self-watering ...

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