Copter does not perform twitches during autotune session

ArduCopter Copter 3.6
1

i got it to autotune maybe once but not completely.
any subsequent attempts result in copter just loitering and occasionally repositionig by 90 degrees

log:

https://drive.google.com/open?id=1NHRx8zQFoqB53uTrsYIxLC4JH4uInmdl

2

Maciek,

I haven’t look at the logs but the most common cause is that the RC transmitter sticks are not completely centered. This includes the throttle stick.

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3

Thanks @rmackay9. The log shows all sticks in ± 4 range from the center position at the moment of autotune activation.
-maciek

4

The problem appears to be the large amount of rate noise you have. Autotune waits until the aircraft is relatively still before starting a test. In your aircraft there seems to be a ± 50 degree per second oscillation on the roll rate measurement.

Auto-tune waits for the movement to be below 10 degrees per second.

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