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NASA tests largest 3-D printed Rocket Part (popsci.com)
3 points by ChuckMcM on Aug 28, 2013 | hide | past | web | favorite | 1 comment

This is an interesting follow on to previous NASA experiments in this area. This is a pretty significant part (the injector) to build using a 3D process. It is a rare case where 3D printing the part is both cheaper and faster than making it the traditional way (machining it). I would not say there are a lot of parts that fall into that category but there are some.

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