Tricopter YAW Mechanism (Rear motormount)

This is a completely redesigned version of my previouse yaw mechanism (weight 49g --> 17g)

For instructions just look at the Photos in the Gallery!
It is optimized for these components:
- 15mm alu/wood
- m3 screws
- This kind of motor:
http://www.hobbyking.com/hobbyking/store/__47611__Turnigy_Multistar_3525_850Kv_14Pole_Multi_Rotor_Outrunner_EU_Warehouse_.html
and this kind of Servo:

http://www.hobbyking.com/hobbyking/store/__36319__TGY_306G_Ultra_Fast_High_Torque_MG_Digital_