I think the problem with printing houses is there's no space in the walls for utilities.
It might be useful for making concrete tanks. I think the problem is in including the steel reinforcements.
It might be useful for making concrete tanks. I think the problem is in including the steel reinforcements.
A house builder machine that could wheel in and do all but the electrical, plumbing, and appliances would be pretty impressive. It'd need a variety of attachments for digging and leveling, pouring concrete, printing walls, filling insulation, and manipulators for placing beams, windows, and doors. That last part probably needs human workers too, so the machine needs to be safe to work around. All that sounds very expensive.
Useful on the Moon and beyond, maybe so useful on Earth. Also worth looking at factory-built houses.
would require some new materials to be viable, most certainly.