And instead of using an axial compressor with tons of tiny blades that would likely be impossible to 3d print with enough strength, you went with a sturdy, easy to print centrifugal compressor?

There are a lot of different aircraft ... primarily what is known as a centrifugal design. These had a larger diameter compared to modern turbojet engines and a compressor outlet perpendicular ...

Experimental investigations on newly developed compressors and diffusers for the validation of new design concepts and numerical flow simulations are conducted on the Centrifugal Compressor Test Rig ...