We're 3-D printing rocket parts! #technologythesedays. The gas generator to an F-1 engine test-fired this September at NASA's Marshall Space Flight Center (nasa_marshall) in Huntsville, Alabama. Although the engine was originally built to power the Saturn V rockets during America's missions to the moon, this test article had new parts created using additive manufacturing, or 3-D printing, to test the viability of the technology for building new engine designs. Credit: NASA #3dprinting #3dp #NASA #rocketscience #modern #technology #madeinusa #building #rockets #journeytomars