Researchers from Imperial College London and Switzerland's Empa institute have developed a system to deployed automated flying 3D printer drones which can be used to print structures in awkward to reach or inhospitable places. Inspired by bees, the Aerial Additive Manufacturing system (humourously) consists of two drones working together, one worker drone that does the printing and one gaffer drone that monitors the work and directs the worker drone to stick to the blueprint if it veers off script.
