I’ve suffered a crash this afternon with my hexa and I realy don’t know what happened. Just after take off my drone turn and take altitude motor turns really hight (full throthle for me). So my setup Orange cube + t265 + RPI + dji air unit. All this setup works, I’ve done a lot fly before this one, AltHod was good my drone maintain well altitude loiter works fine also. So before this flight I’ve try to do autotune but I’ve got failled message failled to initialize failled to level drone I think… Just before to try it I’ve done level horizonclaibration with QGroudControl, I flex just after in AltHold and evrythink works well.
One strange thing in auto log analysis I got Compass = FAIL - Large change in mag_field (749.80%) Max mag field length (2024.80) > recommended (550.00) this is strange beceause I done a compass calibration with QGruondControl and I was in the green part after the calibration.
Here is 1 bin file the first is after level horizon and the second is the crash.
If I can have some help with my log files to understand what happened, for me it’s look like I suffered an ESC or motor issue
For information my motor are F60 PRO IV FPV RACING KV1750 from T-MOTOR and my esc are also coming from T-MOTOR F35A-32bit 3-5S
For ESC I’ve just done an ESC semi auto calibration from ArduPilot, I’ve never change anything in ESC with BLHeliSuite32 maybe I missed something with my esc configuration…
I am fitting ESC telemetry compatible ESCs in all my new builds, multirotors, planes and rovers it takes the guessing out of what the motor was actually doing.
I have been where you are many many times and have had to resort to changing ESC, motor and propeller on customers machines just to be sure, since it was cheaper to just change the motor and ESC than risk having it crash again even if it was probably just a loose propeller…
Yes, I’ve just tried to change params but without succes I can get my esc configuration.
I’ve set MOT_PWM_TYPE to 6 and SERVO_BLH_AUTO to 1 and I have SERVO1-6 to 33-38.
BLHeliSuite detect I have a multiple ESC but when I try to read the setup I got Found no valid esc configuration maybe these ESC doesn’t support by AP pass through.
I’ve also tried to use SERVO9-14 for Aux output without success. And for information when I set MOT_PWM_TYPE to 6 for DShot I can’t run anymore a motor test, I have to set this param to 0 if I want to be able to run a motor test