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New 3D printer makes multi-material robots

The nozzle design allows for rapid switching between inks.

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3D printers can create a huge variety of shapes, usually deposited layer by layer using a single material. Creating objects made from several materials is possible, but switching between the different printable substances has so far been a slow process. Now a newly designed nozzle allows for rapid 3D printing of detailed objects with multiple materials.

doi: 10.1038/d41586-019-03513-4

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