GoPro anti-jello mount for DJI F450 and F550

A simple GoPro mount that is designed to be used with O-rings with an inner diameter of 9 mm. Recomended that the water proof housing is used.
Used gcardinal's DJI Phantom anti-jello GoPro-mount (http://www.thingiverse.com/thing:92014) and made a simple edit to add correct spacing for holes.