I try to stay informed with vendor-supplied newsletters about the CAD industry. When I (or you!) find a topic that would be of interest regarding aviation, I'll share it here unless there's a better place for it already. There's no need for separate threads for every topic if it's all mostly, "check this out," kind of stuff. I'll try to source where I heard of it too.

https://3dprintingindustry.com/ has an article, Stealthy 3D Printing at Airshow? mostly about Norsk Titanium.
Found in 3D Connexion 3DxBlog.