From the Military to Mars: 3D Printing with Whatever you've Got

Prosthetics, tools, homes, cars--the possibilities of 3D printing are vast and exciting, even more so as researchers develop ways to use on-site materials in remote locations for printing.Broken down in combat? Don't wait for a supply truck, print what you need in a few hours from recycled bottles and cardboard boxes. Headed to the moon? Ditch the spare parts--turn that rocky soil into your new home with just a printer.We're not quite there yet, but recent developments indicate that we're making...