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Summary

Description	English: Propulsion systems engineer Greg Barnett prepares a rocket injector for a hot fire test at NASA's Marshall Space Flight Center in Huntsville, Ala. The injector, made with a new process called 3-D printing or additive manufacturing, was Aug. 22, 2013. The 9.5-inch injector is about half the size of the injector for the RS-25 engine slated to power NASA's Space Launch System. It was made with just two pieces whereas a similar injector made with traditional welding had 115 pieces.
Date	5 August 2013, 09:24:30
Source	http://www.nasa.gov/exploration/systems/sls/multimedia/gallery/3d-printed-injector-1.html#.Uh0mE-ig5w0
Author	NASA/MSFC/Emmett Given

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