Hi,
I have finally got my quadcopter fully built but i am having some random stability issues. When i take off it seems to drift in one direction, I can counter act this using the RC transmitter but after a while it seems change and will become unstable in a different direction. I have seem may video of people being able to take off nice and smoothly and just hold in one position this is not possible with min. The artificial horizon shows when on the ground everything is level...
any ideas?
Cheers
Chris
Replies
Here is IMHO a good tutorial on how to setup the offsets correctly:
1. Set the ready to fly frame on a leveled surface, you need to do it for couple of times, so get something that you can recreate this position (eg. floor)
2. Calibrate youre accs. (z is 408)
3. Set trim to 0 on the TX, and fly it in no wind condition (but no indoors!)
4. Now trim it in the air to get it leveled. Yes Trim!
5. Go back to the leveled surface, whit the TX on and trim from the flying you just did.
Connect to the configurator, in Raw Sensors Data you'll see roll & pitch adjust.
correct accs offsets to get this to 0.
6. Set your TX trim back to 0, and you good to go
This ensures you have the setting for a leveled quad in the air.... and no trims on the TX!
Of course this should be done after you calibrate your ESC's.
To calibrate plug directly your ESC's in the throttle channel of your RX, set TX to max throttle power your ESC wait for two beeps (usually) and set throttle to 0. Do this for all four. This ensures you have all motors responding at the same way.
Hope this helps.
Emile
Credits to Levinemax from RCGroups Link to the post....
that's a difference
is it oszilating?
do you fly in stable mode?
have you adjusted the PIDs?
Peter