In Video: Flying robots build future construction
Drones used in automated scale build trial by US scientists
Computer boffins in the US have developed a fleet of flying robots capable of building basic structures in labratory conditions.
The book-sized robot drones have been developed by General Robotics, Automation, Sensing and Perception (GRASP) Laboratory at Penn Engineering, at the University of Pennsylvania. As the video shows, they are perfectly suited for producing structured projects in controlled environments.
If, however, this has you concerned about Terminator-scale technology, there's no need to worry. Full-scale versions are some time off yet.