15th March 2017, 06:59 PM
The top is the flat surface of the frame. The bottom facing side has the cutout / milled square in the center. I suspect the design decision for this was so the screws that hold down the flight controller from the bottom side do not bite into a battery slung along the bottom - because the screws are somewhat counter-sunk. I have mine flying like this.
Originally Posted by markws
I have the 7" carbon fiber frame - there is no milling around the motor mounts? Just straight holes thru for the motor mount screws.
15th March 2017, 11:19 PM
yep - thanks for the reply.