Rocket part made by 3D printing in successful hot-fire test: NASA say it has completed a series of test firings of its first rocket engine part made using 3D printing technology.
Custom 3D printers spraying layers of metallic powder using lasers were used to create a rocket engine's fuel injector that underwent several hot-fire tests using a mix of liquid-oxygen and gaseous hydrogen, a NASA release reported.
Manufacturing this type of injector with traditional processes would take more than a year but the 3D process produced it in less than 4 months, the agency said.
