A robotic arm for 3D printing

Interesting build where the author’s used a robotic arm to print out houses.  In this case for emergency shelters for folks.  My 2 cents, I like the idea if it used cement, but I think the portable shelters I have seen would be a better solution.  But…I could see this build being a good one for custom builds and playhouses.

http://www.3ders.org/articles/20150716-3d-print-emergency-housing-in-under-30-minutes-with-innoprint-3d-printer.html