Visualization of the 3D Printer (IMAGE) Graz University of Technology Caption The 3D printer developed at TU Graz melts metal powder using high-performance LED light sources and then processes it into components in additive manufacturing. Credit © TU Graz Usage Restrictions Free by using the right caption/copyright 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.