Science Friday On-Air: The ABCs of 3D Printing

What can't 3D printers do? We've all heard news stories about 3D-printed food and medical prostheses—even cars and entire houses. But how does additive manufacturing, as it's also known, really work? And how can an at-home hobbyist get started? Ira teams up with Makerbot's Bre Pettis to present the ultimate beginner's guide to 3D printing.
Produced by Annie Minoff
Video by Luke Groskin