Tricopter Yaw Mount Motor Base
This is an enlarged motor base for the Tricopter Yaw http://www.thingiverse.com/thing:77741 I found the original motor base too small for larger motors, and also I found it difficult to screw the servo arm to the base. So, I enlarged the base to accommodate the larger motor's mounts, and thickened the base to make it easier to screw the servo arm to the base. Print solid -- 100%. Or the servo screw can pull out over time.