About this 3D model

Simple hinged tricopter yaw mount based loosely on http://www.thingiverse.com/thing:227642 made to fit a 12mm round tube. Requires a 3mm pin ~28mm long. I used a cut piece of 3mm steel rod, but other materials will probably work. Designed to fit a 9g Hobbyking micro servo. Most micro servos will probably fit.