3D printers, a staple of scifi, have actually been around a while -- I've been picking up their samples at tradeshows for at least 5 or 6 years, and at the Mountain-Plains Museum convention I got a cool fabricated arrowhead from Prairie Fire 3D that I play with like a worry-stone at my desk. The open-source world, of course, jumps on the coolest stuff and relies on the wisdom of crowds to come up with 3D printing for the masses. Fab@Home is the place for learning how to make your own fabricator, with which you can take your favorite squirtable medium and start building.
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