Quadcopter electronics stack mount (flight controller, power module, receiver)

This is my attempt to create a mounting bracket for electronics part of my quadcopter. Design goal was to hold flight controller, receiver and power module, and fit everything into the center of a small F330 frame.

There are three things:
- fc_base: lower part that holds the BEC power module and FrSky receiver. Mounted to the copter base plate (50mm mounting holes). I used additional nuts as spacers so that a battery strap fits under it.
- fc_mount: middle part that holds the flight control