3-D-printed Hair (IMAGE) Carnegie Mellon University Caption Researchers at Carnegie Mellon University have invented a way to produce hair-like strands, fibers and bristles using a common, low-cost 3-D printer. Credit Carnegie Mellon University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.