What Pisses off the Man Who is the Face of 3D Printing
Chris Koch
MAY 19, 2014
They retained the information better when they watched the videos than they did when I taught in person,” he recalls. An obsessive, energetic tinkerer from an early age, Pettis couldn’t resist the offer. Viral How-Tos. Not that Pettis was a bad teacher. My skill is that I know how to gather people to do wonderful things,” he said. “I
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