300 size quadcopter

This was inspired by Immersion RC Xugong motor arms. And then i adapt the rubber holder for front action cam from vpoten Mini Spider by replacing with holes for m3 screw.

Cam plate fits for SJCam 4000 (25mm x 60mm)
30mm m3 mounting holes for Flight Controller
Top plate holes suits for TS5823 VTX. (u can double sided tape any other things)
Battery plate fits for 3s up to 2200 mAh.
Bottom plate 30mm mounts with m3 holes
U will need a 4x (37mm recommended) m3 standoffs

The STL files might be slightly different than the .jpg .
The picture meant to show how it should be done.

I do need some inputs for CoG for this model.
Cheers