Paul Gradl is a senior propulsion engineer in the Combustion Devices Design and Development Branch at NASA Marshall Space Flight Center. He leads the manufacturing, design, development, and testing of nozzles and nozzle extensions. For over a decade, he has supported a variety of nozzle development and flight programs, and has been involved in technology development supporting the manufacturing and measurement techniques for nozzles.Paul joins the show today to discuss his work to develop Additive Manufacturing for combustion devices for rockets. He also shared some sweet videos that you can check out in the about section of the podcast and on our website www.3degreescompany.comCool NASA Videoshttps://3dprint.com/278670/nasa-advances-new-alloys-and-scale-of-metal-additive-manufacturing/amp/https://www.nasa.gov/centers/marshall/news/releases/2020/3d-printed-rocket-engine-parts-survive-23-hot-fire-tests.htmlhttps://www.nasa.gov/centers/marshall/news/releases/2020/future-rocket-engines-may-include-large-scale-3d-printing.htmlhttps://www.nasa.gov/centers/marshall/news/news/releases/2019/nasa-and-virgin-orbit-3d-print-test-rocket-combustion-chamber.htmlhttps://www.youtube.com/watch?v=_JHqdVU9Ebohttps://www.youtube.com/watch?v=FfeP4BVTspshttps://www.youtube.com/watch?v=sU3WI6IYW1Q