I am going to need to pull a slight vacuum on the whole machine.

This will be accomplished by laying up fiberglass on the outside of a 36" cement tube and dropping a delta styled 3d printer inside.

I will need a door, to get at any prints on the inside and probably a camera to monitor the progress of the prints.

The top and the bottom will be fiberglass plates with fittings for a vacuum pump and argon/co2 mix injection.

A magnetron plasma will be the only thing I will be able to fuse particles with, but should be easily achievable with small enough particle sizes.