Here is yet another amazing new way to 3D print large scale objects, without the need of a large scale 3D printer. Researchers at IAAC have developed 3 robots, all used in the production of a large 3D printed object like a building. The Grip Robot, Vacuum Robot, and Foundation Robot make up the construction team. They each have their ow purpose within the 3d printing of a large objects. The full details of each robot can be found here: http://3dprint.com/6340/minibuilders-3d-print-robots/
What do you guys think Does this approach have merit? Could we see 3D printed buildings constructed with these robot any time soon?

Here is a picture of the Grip Robot in action: