MultiWii

Hello,

I have a problem with my Tricopter, i hope than you can help me.

I'm using WM+ (original) + NK (original) + BMP085 + HMC5883

I have tried with version 1.9 and version 2.0.

My tricopter flies very well if i have carefully. I have been able to fly it during all the battery (ten minutes) without land.

But i have a problem. When the tricopter move quickly (by the wind or by my fingers) then is very very unstable and finally crash. I have probed with low values of PID with the same result.

I have connected the Tricopter to the GUI and i can see than the tricopter move like have to move but the Gyros are very very sensible. The values are outside the grafic.

You can see this in the image. In the first part is moving the tricopter normally and the second part is moving quickly.

is this normal?? I think this is the reason because i have problemas with my tricopter when i'm more agressive flying (or there are wind).



I'm sorry for my english.

I would say that would be a normal response from the gyros and accl, just looked at mine with the imu in my hand very similar graph. Are your readings like that if you power the Tri up (without props) and run the motors. If they are you more than likely have a vibration issue. If the trace is almost flat with the motors running then you can turn the rc rate down and tweak the expo in the parameters tab to tame the Tri down. According to Alex higher values of PID make the copter more stable, if you are reducing them you are making it less stable.