(Engineering.com) — At TEDxMileHigh 17-year-old Easton LaChappelle wowed audiences with the presentation of his 3D printed robotic prosthetic arm. 3D printing is revolutionizing a number of industries, but more than that it’s changing the way people think about inventing. Since he was 14, Easton LaChappelle has been interested in robotics. Back in 2010 Easton created a robotic hand from LEGO...