Sci-fi film buffs might remember a late-80s movie called The Fly, in which a scientist develops a machine that instantaneously transfers matter from one location to another through space. "It will change the world as we know it," he tells an awe-struck reporter. 3D printing — also called additive manufacturing — feels a bit like that: from printed houses to printed violins to printed shoes, it might just change the way we make things, permanently.
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