Robert Downey Jr. Delivers Bionic ‘Iron Man’ Arm to Young Fan

Robert Downey Jr., Iron Man himself, surprised Alex, a seven-year-old boy who was born with a partially developed right arm, with a new bionic 3D printed arm. The bionic arm was designed and created by college student Albert Manero, founder of Limbitless, a “growing engineering community devoted to changing lives through the innovation of new bionic arm designs and development of a worldwide network of makers and thinkers.”