I don’t know if I would call it “3D printing,” though. Sounds like more conventional construction techniques, just using AI-controlled equipment. I was expecting a giant concrete-extruding boom of some sort.
Also, this is possible in part because the Chicoms don’t have to negotiate with labor unions.
Thomas Edison invented the “continuous pour” concrete house. He only built two small structures for himself. He did build numerous “mostly” concrete houses elsewhere.
I used to live just up the road from his cement factory out in rural NJ. The old guy living next to me had worked for “Tommy”. Pretty cool to have known a guy that knew Thomas Edison!
https://www.amusingplanet.com/2019/06/thomas-edisons-forgotten-passion.html
“The object of my invention is to construct a building of a cement mixture by a single molding operation,” reads his patent application. “All its parts, including the sides, roofs, partitions, bath tubs, floors, etc., being formed of an integral mass of a cement mixture. This invention is applicable to buildings of any sort, but I contemplate its use particularly for the construction of dwellings, in which the stairs, mantels, ornamental ceilings and other interior decorations and fixtures may all be formed in the same molding operation and integral with the house itself. The house thus made is practically indestructible.”
Are there Labor Unions in Communist China? I’d think the ultimate Chicom negotiation tool is the barrel of a gun.