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Printing Curves not Layers | Make:
Mataerial is a 3D printer that breaks out of the box, literally. The prototype unit is additive, like other 3D printers, but that's where the comparison ends. Instead of piling up layers on a circumscribed bed, Mataerial uses a robotic arm and fast-solidifying material to create graceful, flowing curves on a variety of surfaces -- horizontal and vertical.