Received the carfon fiber frame for Hero3 today. I had a few problems installing it:
1) if you look at the photos in
http://www.hobby-wing.com/gopro3-cbron- ... m2000.html you'll see the small MPU PCB is supposed to fit partway inside the frame. My MPU does not; it's too wide.
First I tried attaching it using the provided double-sided sticky tape on top of the small ledge on the left hand side of the frame. Nope, the connector on the MPU hits the motor and the PCB gets twisted downwards because of that. As a temporary (yeah, right) solution I placed the MPU on the underside of the small ledge. Now it doesn't hit the motor, but it's the first to hit the ground if you don't have an extended landing gear.
2) The screws which attached the original camera tray to motor are slightly too large to fit easily through the slits machined to the frame. A bit of force had to be used, and as the screws don't slide in and out of the slits freely, I had to pre-install the screws into the frame, then try to match the screws to the motor. Not impossible, nor even very difficult, but an irritation nevertheless.
Next up, a re-calibration of the gimbal, followed by a flight test.
Update: I thought it would be OK to install the MPU upside down (to the underside of the ledge) followed by a re-calibration, but no. The gimbal turns the camera upside down when powered up. Guess I'll have to move the MPU and place it the right way up.
update: used double-sided sticky tape to mount MPU on top of the carbon fiber frame. The gimbal works, but that location is far from ideal as the MPU is on the way if I need to remove Hero3 from the frame. *sigh*
A side question: how long does it take for your Phantom to go from "battery-connect" to flashing green LED, i.e. ready for engine power-up? Mine takes 100 seconds, which feels like a lot.