Indestructible 8520 Racing Frame

I designed this Indestructible Frame to overcome some basic "weak-spots" that usually appear on micro frames especially around the motors. The length diagonally from prop to prop is around 120mm and it supports FC's with dimensions such as L: 37.04 , W: 24.02mm. The frame has to be used with 8520 motors and your own choice of props althouugh I am going to use some King Kong 65mm props as soon as I have this printed. There is also a slot at the back of the FC for easier use with FC's that have re