Intern Jim D'Andrea loads powdered nylon into a 3D Systems 3D printer at America Makes, the National Additive Manufacturing Innovation Institute in Youngstown, Ohio, March 5, 2014. Along the banks of the Mahoning River in the struggling Ohio steel town of Youngstown sits a once-abandoned furniture warehouse that has been converted into a sleek new laboratory. Inside is a Silicon Valley-style workspace complete with open meeting areas and colorful stools. Several 3-D printers hum in the background, while engineers type computer codes that tell the machines how to create objects by layering materials. Picture taken on March 5, 2014. To match Feature USA-OBAMA/MANUFACTURING REUTERS/Jason Cohn (UNITED STATES - Tags: SCIENCE TECHNOLOGY POLITICS BUSINESS EMPLOYMENT)