3D Printed Jet Engine and Fast Prototype

can't rightly say, currently I say no.

One think about this, is that it's used for doing replica models only.

I know that a compressor manufacturer Business Development Manager :/ would have loved it for visual demonstration for their customers..... but that's just a salesman talking.

Seems I read/heard recently/lately somewhere that some company (P&W, GE, ?) was working on 'first' 3D printed part for one of their engines. It was just one part, probably not a highly stressed one.

I also recall seeing that, and you are correct. It was just one part. I would not be too sure about it being a low stress part, however. Additive manufacturing may in fact produce parts that are able to withstand higher stresses, given equal composition.

Wow there buddy, it surely is capable to fly an RC jet.

Couple of years more and all machinist will be damned and robot printers take over the world.

Probably not. As mentioned above by others, it is most likely a small model to demonstrate what various parts of the machine are at this point. As to making actual parts for a jet engine using this additive manufacturing, it can be done, but not with any standard 3D printer. It seems 3D printers are as diverse as the people who engineer them.

I couple of years ago, I did read about a miniturized jet engine made by group of machinists who were able to CNC mill out whole blading sections in one piece, which is an advantage, since individual blades did not have to be attached one at a time to the hub. It was a masterwork of machinist craftsmanship.

I would not expect machinists to become obsolete any time soon, or welders.

That's not a jet, and you can take that from a defence contractor.

Would look good in the office "trophy" case.

This one is a jet engine - from GE

https://youtu.be/W6A4-AKICQU

Space X is using 3D Printera on its Raptor rocket engines that turns around parta in days instead of machining for months.