Multicopter hinge (square tubing)

thingiverse

This is my design for a hinge that can be used on any multicopter with a 14mm square tubing arm, easily scaled to fit different tubing diameters. It's likely to have other uses as well. I haven't printed this design yet, but I plan to use high infill for added strength. Two of these hinges will be needed for each connection point, allowing the arms of a multicopter to fold down for transport. My intention is to cut the arms close to the body and install one of these hinges at each end of the connection. A bolt and wing-nut will serve as the pivot point, while a rubber O-ring will keep everything tied together on top. This design makes most sense on larger multicopters, which is why I created it for my 930mm Hobbking Octocopter in mind.