A USC roboticist has built a robot for "printing" houses that can extrude cement or adobe and shape it using trowel-manipulators to a CAD-represented spec....The key to the technology is a computer-guided nozzle that deposits a line of wet concrete, like toothpaste being squeezed onto a table.... via [Boing Boing Blog]
Excellent. I can finally build myself a Klein bottle house (or would it be impossible to heat?). But isn't a pure concrete (no rebar) house kind of brittle? And if you do the pour slow enough so as not to require forms, do you actually get a *wall* or just a *stack*? In short, does this thing produce houses anywhere near California code?