Hi there,
I am basically familiar with copters, but new to AQ. For the last 2 weeks I am trying to get my AQ flying. From here I start to get pretty frustrated, since it flipped this morning during low level hover. Broke 2 Xoar props, motor mount plate and one motor bearing.
My configuration:
Flyduino FCP-HL frame
Tiger MT2216-800kv with Xoar 11x4
Flyduino 20A ESC (SimonK)
4s2p 5000mAh
AQ FW ver: 7.0 - BETA rev442 b1848, HW ver: 6 rev1 - with DIMU 1.1
Quadro-X setup, default PIDs.
Although my target configuration is an X8, I disabled the lower 4 motors and configured it as an Quadro-X - for first hovering and to get the hang on the AQ configurations.
With a mixing table of +/- 50% on tilt and roll I had severe problems during indoor test hovering. The AQ was twitching all over and starts flipping over motor A after a short time. I understood this phenomenon as motor clipping/saturation with different reasons for that. So I reduced the mixing down to +/- 30% on tilt and roll, and tamed down IMU_ACCX/Y readings down to +/-0.5~0.8 with all 4 motors running on the ground. I could not get it lower, although all props have been balanced twice.
After having done that, the twitching/flipping was gone - at least during low level indoor hovering. So I thought I'll give it try this morning and did the first outdoor hovering on our lawn. In manual mode hovering in ~1-2m height was fine. The AQ was responsive and pretty stable. So I continued hovering and switched to PH mode. Instantly the AQ hardly flipped and crashed on the lawn.
Unfortunately there was no SD card inserted, so no log file. GCS screenshots of my config attached, also the last IMU_ACCXY reading on the ground just before the crash flight.
What am I missing, why is it flipping instantly after switching to PH, but not during hover?
Thx in advance, Jens