The same team has previously done work using drones to build structures out of bricks (rather than ropes): http://www.idsc.ethz.ch/research-dandrea/research-pr

The same team has previously done work using drones to build structures out of bricks (rather than ropes): http://www.idsc.ethz.ch/research-dandrea/research-projects/archive/flying-machine-enabled-construction.html http://www.idsc.ethz.ch/research-dandrea/research-projects/a... http://spectrum.ieee.org/automaton/robotics/diy/video-watch-flying-robots-build-a-6-meter-tower http://spectrum.ieee.org/automaton/robotics/diy/video-watch-...