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Arducopter Constant Twitch, Can You Help?

Posted by Ben on November 27, 2011 at 6:18am

Have been having a problem with my ready to fly Arducopter since it's first flight. There are no bullet connectors, messed a little with the in loiter PIDs (no noticeable change), I have foam over the barometer, software is up to date, and the compass is securely mounted.

Watch when it comes close. The copter tends to jerk back and forth repeatedly. There doesn't seem to be one side it favors.

This one totally has me stumped. Any thoughts?

https://www.youtube.com/watch?v=fycusJR7R4w

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arducopter, problem, twitch, unstable, wobble

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Replies

Developer

Jean-Louis Naudin November 27, 2011 at 10:13am

Hello Ben,

This is a wobble effect in stable mode, try increasing I and lowering P... I suggest you strongly to see this excellent tuto with very helpful videos about the PID tuning of the Arducopter at:

http://www.rcgroups.com/forums/showpost.php?p=19592927&postcoun...

Here the video which explains you the problem and its solution:

Good tuning, Jean-Louis

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Peter Seddon November 27, 2011 at 9:22am

How does it behave in Stabilise? Sounds like it was a bit windy (gusty?) and that the quad could do with some basic PID tuning to me.

Peter