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Alex Madinger holds an object made by 3-D printing

April 8, 2013 | 7:46 p.m. CDT
Alex Madinger, president of MU 3-D Printing Club, holds a gear cube made by a 3-D printing machine. This cube, made of plastic and screws, is created using a digital formula along with printing software to produce a 3-D structure.

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