PBS short documentary about 3D printing

PBS OffBook made this excellent 7-minute introduction to 3D printing.

Much attention has been paid to 3D Printing lately, with new companies developing cheaper and more efficient consumer models that have wowed the tech community. They herald 3D Printing as a revolutionary and disruptive technology, but how will these printers truly affect our society? Beyond an initial novelty, 3D Printing could have a game-changing impact on consumer culture, copyright and patent law, and even the very concept of scarcity on which our economy is based. From at-home repairs to new businesses, from medical to ecological developments, 3D Printing has an undeniably wide range of possibilities which could profoundly change our world.