10%2012-31-1969%207-00-00%20PM.bin
I have been test flying, mostly hovering, a quadcopter I recently built, trying to get the best settings. Unfortunately, no matter what I do the quadcopter constantly drifts to the right, even after trying to correct with trim on the transmitter. It's a ~350 size quadcopter with a 3D printed frame, APM 2.6 with NEO-6M GPS, 2212 motors, 8 inch props, open source telemetry. Using a Devo 7 transmitter with RX701 receiver. I reconfigured several times, moving receiver and telemetry transmitter to different locations but same results. Also, when I try to auto trim, it seems to over-correct and usually ends up in a harsh landing with failed trim. my intent has been to use the trim buttons on the transmitter to get it right, then use SAVE TRIM to store the settings. Since the quadcopter doesn't respond to my trim efforts to correct drift to the right, I can't save the settings.
I've attached the last log file for reference. You can see my constant correction to the left on roll. I'm not getting any error notices. I am completely baffled.
Any help would be appreciated.
Max
Replies
Max,
I'd first do a weight and center of gravity test to determine if your Center of Gravity (CG) is far out to the right. Here are some links that may be of help:
http://ardupilot.org/copter/docs/troubleshooting.html?highlight=cen...
http://diydrones.com/forum/topics/center-of-gravity-question
https://www.youtube.com/watch?v=O8kuBI1XJSg
Cheers,
Will F
P.S., the erratic data at the end of the flight was a rough landing. I was too low when I switched back from althold and landed with a bit more speed than I wanted.