Brushless Whoop UR65 US65 UK65 frame and duct

This is a remix of the very good frame which can be found here:

https://www.thingiverse.com/thing:3291349

All in all I changed some things as the original screw posts are breaking very fast in case of a crash or when tightening the screws. Also the micro USB socket is hard to connect with the crazybee F3 board.
Moreover the duct in the original sits too low and does not cover the propellers completely

This is now redesigned with a modified frame and duct whereas the duct covers the who