Tooling -- Repeating the Pattern (IMAGE) DOE/Oak Ridge National Laboratory Caption Using 3-D printing, ORNL researchers rapidly prototyped a complex gearbox pattern and created sand molds to make no-waste aluminum parts for industry partner, Emrgy Hydro. Credit Brittany Cramer, Oak Ridge National Laboratory/Dept. of Energy 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.