Teen inventor uses 3D printing to revolutionize prosthetics

"I would never have imagined that something I made in my bedroom would be shaking hands with the President," says 17-year-old Easton LaChappelle. But that's exactly what happened when LaChappelle got to visit the White House Science Fair and present the robotic prosthetic arm that he 3D-printed and built in his bedroom lab. (Read more!)