I have been working on a QAV250 frame with a pixracer flightcontroller. The ESC’s are Blheli_s 30A and the motors 2205. Since the beginning I have some problems with a hunting or jittering motorspeed on all motors when it takes off.
When it is armed and slowly spinning the rpm is nice and steady, but as soon as I turn op the throttle the speed isn’t stable.
It seems to me it is reacting to something, but I can’t figure out what. Because of this the y acceleration is also quite high and noisy.
To test I’ve switched flight controller to a beta flight F3 acro (I’m not sure what kind of hardware it really is). In this setup the rpm is nice and steady, so I figure it can’t be the ESC and motors.
The vibration dampers on the pixhawk are also exchanged, as a test, but with no result. I tested foam and a 4 direction rubber damper.
I am a bit stuck in what else to try, because the PID settings it doesn’t seem to respond to (at least, with no improvement).
Is there anybody who recognizes this problem and knows how to solve this? Hopefully this is just a dump newby setting so I can fly normally afterwards.