"Desktop fabrication machine" may sound more like an item in a sci-fi book than a device you can buy today, but they do exist, and they're getting better. Makerbot's new Replicator 2 can print out 3-D ...
Consumers increasingly use 3D printers at home for a wide range of applications. Hobbyists use their printers to make parts to fix old arcade machines or even create custom fixtures around the house.
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