it hot, windy and muggy here today, an interesting combination
well i can never let stuff alone.... found the archillies heel tonite. shortened the vertical height to 180mm between pivots and a nasty side effect of the yaw and pitch interacting turned up. thinking back I had seen a mellow version when testing the I original frame.
what happens, when tilted back, and say it wants to yaw to the right ( cw) so it speeds up the ccw motors. problem is the ccw motor on the left is tilted back and induces a hard ccw yaw. the controller tries to fight it by speeding that same motor even more!
the answer will be to split one of the shafts and use motor tilt to yaw. but that adds to build complexity
