Thinking of building something like this 45mm whoop. I custom built a 65mm a year ago and it was really fun to fly, but I think I can do better on hardware than this guy.

The plan is: Design a full AIO flight controller in the form of an SOM (f411 + elrs + esc + VTX), only 15x15 to 20x20mm. The frame would be a plate of 1.0mm FR4 (normal PCB material just a bit thinner), with a place to solder the SOM onto. Motors would be screwed into the frame with the cables cut to a couple mm and soldered directly to pads on the frame which would lead to the solder connections on the SOM. It'll fly like shit, but it'll be fun and repairable (desolder the SOM, put it on a new board)

What yall think