A tomo frame with a cut-up beta 75 frame for prop guards... and a sharpie.
This is made from some resuscitated parts. The more builds I do, the more I learn how to troubleshoot :) The vtx i thought was trash but after troubleshooting I cleaned it up, added a capacitor and its functional again. I depinned the FC and direct soldered the motors.. not much space but enough. I am using a vtx toothpick adapter, but only as a shelf to hold the vtx. The rx is between the shelf and the fc. Everything has breathing room on this one.
I drilled out one of the props too much so that one has to be t bolted in. The other three are press fit. The tops are chewed up from running them in a pusher config and removing them with a prop tool.

getting less than 2 min on 2s mostly cruising.
I tried a 3s but with this tiny strap I was not inclined to whip it around. Got around the same flight time.
Im thinking there might be an issue with a motor.