The US Navy’s postgraduate school is taking a stab at metal 3D printing

https://www.defensenews.com/naval/2021/02/13/the-us-navys-postgraduate-school-is-taking-a-stab-at-metal-3d-printing/

The Naval Post Graduate School is working on 3D metal printing, hoping one day to be able to make moving engine parts in a 3D printer at sea.

https://peterholland765.wordpress.com/2021/02/13/the-us-navys-postgraduate-school-is-taking-a-stab-at-metal-3d-printing/