Quad don't fly well, and drifts

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paw1985
Posts: 2
Joined: Wed May 01, 2013 3:32 pm

Quad don't fly well, and drifts

Post by paw1985 »

Hello

I'm hoping someone can tell what i'm doing wrong.

I've uploaded some videos to show what i'm talking about.

http://youtu.be/J42NVeUi2K8
http://youtu.be/Vcmn9KCdE78

And my conf.h file can be seen here http://cleanupload.com/conf.txt

Specs:
MultiWii 328P Flight Controller w/FTDI & DSM2 Port
Slow Fly Electric Prop 9047 SF
4xA2212 13T/1000KV Brushless Motor+4x30A Brushless esc
Turnigy H.A.L. (Heavy Aerial Lift

Detailed specs can be seen here:
http://pixeljunk.dk/?p=220

I would appreciate if someone at least could point me in the right direction.

I've tried messing a lot with the PID Settings but seems like every setting just makes it worse and worse.

Thank you

/paw

QuadBow
Posts: 532
Joined: Fri Jan 04, 2013 10:06 am

Re: Quad don't fly well, and drifts

Post by QuadBow »

I don't see any big issue. Your copter is stable, it only drifts slowly. That's normal in particulat when wind blows or at a low height due to the ground disturbance effect. You can try to compensate the drift by trimming the ACC via stick control (http://code.google.com/p/multiwii/sourc ... 215664.pdf).

Maybe the place for flying is a bit close. In any case you should begin with more space and at a higher height. Thus, reset your PIDs to default, go to an open field, and try to adapt the PIDs again and learn to compensate the drift manually. (You will always have a small drift, since the MW control algorithm controls the stability of angels and not the drift.) After this you will be able to fly even at the location of the first video.

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