Drone tilting with apm 2.6!

Paarth_Saini · November 9, 2017, 2:45pm

Hi, I have made a quadcopter with APM 2.6. I am also a beginner so I don’t know much about drones. I have used F450 frame with local BLDC motors and ESCs. But my drone it tilts everytime. There is only an extra GPS on my drone. I have checked everything but I don’t know which log file or parameter I should add or change for this. I tried to swap 1st with 2nd. My 2nd motor was first slower. And after re-calibration of swapped ESCs the original 1st motor was slower. I have a problem with the log files or some parameter so please help. My drone tilts towards back right of the apm.

mboland · November 9, 2017, 7:40pm

You will need to include a log file from the APM for any real answers.
Without it we are just guessing.

When hooked up to Mission Planner is the horizon level in the HUD?
Have you done the accelerometer calibrations?
Have you checked the motor order is correct?
Without props, arm and increase throttle (about 1/4 should do) and holding the drone, when you tilt it do the low motors speed up and the high motors slow down?

We need more info please.

Paarth_Saini · November 10, 2017, 10:02am

I told you I am a beginner. And I don;t know which log to attach so, I did an auto analyze.
These vwere the results.
Log File C:\Users\O\AppData\Local\Temp\tmpAC33.tmp.log
Size (kb) 51.2080078125
No of lines 1002
Duration 4 days, 11:10:08
Vehicletype ArduCopter
Firmware Version V3.2.1
Firmware Hash 36b405fb
Hardware Type
Free Mem 0
Skipped Lines 0
Test: Autotune = UNKNOWN - No ATUN log data
Test: Brownout = FAIL - Truncated Log? Ends while armed at altitude 59183.18m
Test: Compass = GOOD - No MAG data, unable to test mag_field interference

Test: Dupe Log Data = GOOD -
Test: Empty = GOOD -
Test: Event/Failsafe = FAIL - ERR found: GPS
Test: GPS = FAIL - Min satellites: 0, Max HDop: 5.38
Test: IMU Mismatch = UNKNOWN - No IMU log data
Test: Motor Balance = UNKNOWN -
Test: NaNs = GOOD -
Test: OpticalFlow = FAIL - ‘FLOW_FXSCALER’ not found
Test: Parameters = GOOD -
Test: PM = GOOD -
Test: Pitch/Roll = GOOD -
Test: Thrust = GOOD -
Test: VCC = FAIL - VCC below minimum of 4.6v (4.365v)

Paarth_Saini · November 10, 2017, 10:05am

Paarth_Saini · November 10, 2017, 10:06am

All these are logs that were there in my logs folder you can see all of them.

mboland · November 10, 2017, 10:42am

Can you please answer the questions i asked.

Try erasing all the logs and doing a test flight, that way we know which log to look at.

That many log files is not helpful as I don’t know what you were trying to do in log.

Also helpful to increase your logging level as much as you can.

Paarth_Saini · November 11, 2017, 6:55pm

You can watch the video from the link.
And I have done accelerometer, esc calibrations and the motor layout is also correct.
Plus, initially the motors move at the same speed. But when I increase the throttle more 2 motors accelerate more and cause the drone to tilt. I don’t think there is some problem in the esc calibration because I did that almost a 100 times since I had calibrated and armed it the first time. So, yup I will delete all logs and check a single one I’ll send you that log too.

mboland · November 11, 2017, 10:09pm

Just repeating the questions that will help

Have you made sure your props are on the right way up?

Focus on the left rear motor, is it spinning in the right direction?

Paarth_Saini · November 24, 2017, 6:04pm

yup I have checked everything but I had tried to change my board so it was working it was a problem with the accelerometer it wan’t working

Paarth_Saini · December 2, 2017, 10:01am

Plus forgot to say thanks a lot for your help! A lot! Thank You!