GE is working on a massive 3D printer for jet engine parts
 

3D printing is coming of age in numerous ways. On a large scale, MIT researchers built a 50-foot-wide, 12-foot tall igloo in just 13 hours. They've also debuted the first completely 3D-printed rocket engine. On a much smaller level, our own Sean Buck...

https://www.engadget.com/2017/06/21/...er-jet-engine/