I want to use iNav in my LR quad. That requires a compass, which is missing in BN-220 gps module. Got BN-880 and awesome Matek's F722-PX FC to try. So actually old Badger got partially rebuilt.

As compass is very sensitive to any nearby currents, I couldn't put it on the arm as I usually so. Have to design a rear mount for it.

Weight without battery and GoPro: 395g

Waiting for maiden and endurance measure.

UPDATE 2020-05-28: Got Twist-Lock plate cut from 3mm carbon fibre.

UPDATE 2020-06-03: Rear mount still caused problems with magnetometer. Too much electronics and motor's magnets are affecting on it. So had to put it on the mast above the quad. I had 9x5mm CF pipe, so modelled a mounts around it. See photos below.