This is my 3" freestyle with a custom, self-designed frame.

I'm using the airbladeuav superman 1404 4850kv motors because I had these motors for a 2.5" build. This kv is a bit too high for this build, so I'm running a throttle limit. Ideally, you want ~4000kv on 4s.

The custom frame isn't a requirement for this build. Any 3" dual stack frame will work. I was previously using the iFlight Titan H3 frame, but it doesn't seem to be available anywhere anymore. I think a good frame weight is anywhere from 35-45g. This particular frame is ~40g with all the hardware and tpu parts.

Dry weight is ~148g. Could reduce the weight a bit with a whoop style AIO and using the nebula pro camera.

My intent with the frame was simplicity and component mounting flexibility. There is plenty of room between the stacks, and there are 3 mounting positions for the rear stack. It can easily fit the larger single board 20x20 AIOs, the whoop AIOs, or standard 20x20 stacks. The frame is also a true-x design, but I think I actually like the squashed x look better, so I'm working on some revisions to this design.

Flight time is 4.5 - 5m