X900 Tricopter Motor Mounts

I bought the X900 tricopter frame from Hobbyking, and unfortunately crashed it fairly early on breaking one of the motor mounts. At this stage spare parts are not available, and while commercially produced CNC'd parts are available they are heavy.

These mounts have been designed for the X900 using 3mm aluminium bar stock from the local hardware store. The design minimises the size of the motor mount and is actually considerably lighter than the glass fibre original mounts.

The design fil