Um, you can get 3D printing done in Aluminum. I know - I’ve order parts made that way for a project.
"Dr. Smith and Will find the wreckage of an alien spaceship
and a mysterious machine that creates anything they wish for.
Word of the magical machine reaches the Robinsons who want to
use the device as well, but their eventual greed forces the Professor
to get rid of it. Refusing to destroy it, Smith takes it back to the alien
ship, but there he summons a servant to tend to his needs. The machine
instead conjures a menacing mummy-like creature who tries to take the
machine away."
Selective Metal Sintering has been done for what, 15 years now? But that dosen’t feed the 3DHype machine.
How does the strength of a 3Dprinted/layered structure compare against cast aluminum?