![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. 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.](/sites/default/files/styles/list_page_thumbnail/public/news/images/DSC_0224%5B7%5D.jpg?itok=NBmuwwMn)
Oak Ridge National Laboratory has successfully developed and tested a novel sand casting technique to quickly design complex patterns to fabricate components for industry partner Emrgy Hydro, makers of hydropower devices designed to generate electricity