@nghiajenius-dev wrote:
I've just built a miniquad with DALRC 265 frame, Emax motor 2205s, and littlebee 30a blheli, DAL bullnose 5 inch prop. I use Pixhawk 2 as a flight controller, PID as default.
I have some serious problems with this new setup:
- The copter fly with huge oscillation on roll axis. And the battery drains fast.
- It can stabilize itself, but I cannot control the altitude. When I increase just a little throttle control, the copter climb really fast and uncontrollable with 4s battery, the only way to reduce the altitude is to completely cut off throttle to let it fall down. I changed to 3s and it still very hard to keep it hover.
- In Alt Hold, the copter cannot hold its altitude but drop its altitude quickly, so I have to switch to Stabilize mode to take control. However, when I switch to Land mode, it's able to land very calmly.
Here is the short flight video:
https://www.youtube.com/watch?v=qkmUFvoEpTwIs there anyway to fix the issues? This is my thesis project, and it's really make me nervous now. Any suggestion is truly appreciated. I have attached 3 log files with 3s battery.
2017-03-09 18-25-02.log (2.5 MB)
2017-03-09 18-34-53.log (1.7 MB)
2017-03-09 18-29-52.log (4.2 MB)
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