For one New Zealander, named Brendan, 3D printing has been a hobby of his since he got his first 3D printer back in 2013. Around this same time, he was also frequently playing around with quadcopters. He was even part of the group that tested out the 3DR IRIS Quadcopter before it was officially released, and he had also constructed several quadcopters by himself, so it was only his natural progression to begin thinking about how to combine both hobbies: 3D printing and flying robots.
Checkout the video below.
Download the 3D printer files from Thingiverse.