Tiny Hawk Freestyle Frame Base 4mm

This is a remix of the Emax Tinyhawk Freestyle frame base done by archangel1982 (thanks for the design). I padded it to 4mm vs 3mm thickness for more rigidity so that I can use my favorite drone frame filament, Taulman Alloy 910 Nylon.

In addition, I opened up the back vent hole to better accommodate the micro usb connector that is located on the bottom of the flight controller board. I am using the Darwin FPV AIO controller, but it appears to be the same profile as the Crazybee. The USB port fits in the original design, however it is pretty tight against the frame and since the board is soft mounted I felt it could potentially break the port off the board in a crash. Maybe not necessary, but I figured I'd do it while I was editing the file.