This is a mount for the Matek F405-Wing flight controller. This was specifically designed to make it easy to mount the Matek F405 on the 36" Northern Pike ( https://www.thingiverse.com/thing:3040294 ), however it can be used on any aircraft that has room. The Matek easily slides into the mount from the front, and is locked in by simply closing the LockClip and snugging up the 3mm hex bolt. This provides a firm, level mount for the Matek on any aircraft.
When mounting on the Northern Pike, it is designed to fit in Fuselage Section #5, as far aft as you can place it (closest practical spot to the CG of the aircraft.) There is a slot on the bottom of this mount that properly aligns it with the centerline of the fuselage. The LockClip makes it easy to remove the Matek for servicing (it is quite hard to get to in the Northern Pike, and requires simple, easy installation and removal.)
Assembly only requires a 3mm x 8mm hex bolt. I recommend printing this in PETG. The weight of this bracket with the 3mm bolt is just 9 grams.
Supports are optional, but I do recommend them for the LockClip post and for the elevated platform.