“hands-free technology”
This is BS.
It took several people to set up the 3D printer. To set up the scaffolding. To pour the concrete floor. To pour the concrete second floor. To assemble the membrane roof.
I have been watching several of these 3D printed housing projects over the last few years. The only thing they save is the wall framing and sheathing. You have to still frame out the window and door openings with wood. You have to change the way electricity and plumbing are put into the walls.
I just do not see how it is a benefit once you have to retrofit things later on. Plus, do you want the inside walls of your house to lock like a pair of corduroy pants from the 1960s?
Exactly. You can see lots of labor at work in that video. Then all the power wiring, server racks, comms wiring, industrial cooling, insulation, backup power, fuel storage, HVAC, etc needs to go in. Maybe the shell of the building could save a couple of percent in total building costs.
Then, in the end, you have a butt-ugly building the neighbors hate.