Exactly!
An accurate headline would have read, “3D printer built FRAMES for 10 homes in 24 hours...Some Assembly REQUIRED!”
This is a good idea, but not quite what the article advertized.
Thomas Edison Also Invented the Concrete House, Says NJIT Researcher
“Edison’s one-of-a-kind system was patented for the purpose of building a single, repeatable structure without any parts, with a single act of construction,” said Burgermaster, “And, remarkably, 100 years later many of these houses remain standing.”
http://www.njit.edu/news/2011/2011-215.php
Have also seen an experimental project of domes (igloo?).
Full size poured in place.
IIRC they had forms for the openings; windows, doors,vents...You want the window about here?... OK...
The equipment was set on the center of the slab and swung in continuous slow circles.