I’ve 2 issues if anyone can give me some pointers.
Low wind day. When taking off in stabilize mode, Copter always Yaw to the right about 90 degrees then maintains ?Yaw.(almost seems like it’s pointing to the north all the time. Trimming doesn’t help. In Loiter or Alt Hold this doesn’t happen Yaw stays. Video Link below. Ignore the RTL landing, a foam on the baro fixed that. https://www.youtube.com/watch?v=Tyehl8nHJVE
Second flight - a little gusty about 20m up. Taking off in stabilized seems ok and then switch to loiter at about 20m. Every time it gets hit by some gust, copter starts to wobble. Check out the video below: https://www.youtube.com/watch?v=x8mTIY-Ckhk
Almost throw up watching the video… look away if you have to . It’ll be great if anyone can give me some advice to fix this other than installing a gimbal
Wobbling would be caused by tuning problems. Try autotune. Your log wrapped and overwrote the parameters so I can’t check your gains - do you have a log of a shorter flight?
Autotune can’t do anything that you can’t do in stabilize. If you have sync issues, it is so much better to know about them now. It won’t fry your ESCs, just reveal that they are problematic.
I also have the same problem, while in Stabilized mode its very stable, but as soon as I hit loiter it wobbles to the point I have to return to stabilized in fear of a flip. with the telemetry I got a good 3d GPS signal feed back.
Setup:
Im running a heavy gunship of total take off weight 5.1kg. Its a quad on 330KV TMotors and autotune is also not an option due to desync possibility (I had it happen to me).
I had similar issues, excellent stability in stab and alt hold but wobble or relative quick correction on loiter mode. By manually tuning (map channel 6 to a pot) I changed Rate Loiter P to 0.720 (from 1.0) and also reduced Rate loiter I to 0.440 (from 0.500).
This resulted in a much more locked in loiter with far less aggressive correction when hit by wind or even just on windless days (since I had the wobble even on windless days).
Although I followed the instruction on how to manually tune, after saving the new settings and rebooting the quad, the I value now changed all by itself to 0.000. Seems like a bug in MP because I saw the same happen on a different occasion to the P value. So in both cases, I re-write those parameters in the full parameter list (because the extended window will not let me change it) and save them again. That keeps it then and shows up in the extended window too.
Hi everybody, had someone found a solution for this problem. I have the same
Pixhawk 2.8
Stable in stabilize and althold but wobbles in loiter mode and rtl. Could trim be the cause? Help please.
A problem that existed in 2015 may have no relevancy today. I suggest you create a new post with the problem you are having and include a link to a .bin flight log.
hi i am using a tmotors and 80A esc flame and its good for loiter but if i will roll to left nd right or pitch forward and backwards the hexaplus is not giving a smooth breaks and when i try it in the wind specially in RTL it will wobbling… can you help me to this problem… thank you so much
. It’ll be great if anyone can give me some advice to fix this other than installing a gimbal 