A 3D printer is a device that ____ digital data into physical form. It ____ precise motion-control systems to follow a digital blueprint. It deposits materials, such as plastic or metal, layer by layer to build a solid object. It directs the nozzle to follow the shape of the object and may ____ heat to keep the material flexible. Once enough material has been released to complete the object, a cooling process is ____. A 3D printer can also transmit printing status updates to a computer or an app.

3D printer

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