How the Photocopier Changed the Way We Worked—and Played

Recently I visited Whisk, a Manhattan store that sells kitchen goods, and next to the cash register was a strange, newfangled device: a 3-D printer. The store bought the device—which creates objects by carefully and slowly extruding layers of hot plastic—to print cookie cutters. Any shape you can think of, it can produce from a digital blueprint. There was a cutter in the shape of a thunderbolt, a coat of arms, a racing car.

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