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.
Want to print your own Borromean Rings
? Check out mathematician Laura Taalman's designs