Greetings all, i am having issues with getting my esc to produce the same output to all motors, i.e. 400 rpm between the highest and lowest. I have calibrated individually and auto, APM 3 r5 but still have issues.
my question is can the raw data be monitored for the esc's input/output for diagnostic reasons.
400 rpm on 12' blades is 3% of the total and a significant imbalance in efficiences on a 800 hex with 720kv motors.
thanks
Ricci
Replies
12' blades oh my....those are bigger than your 800! You mean 12" props....anyway to answer your question if I can...there should be a way to adjust throttle to each motor individually. I have not used this flight control board but I know even on the cheap ones you can do this. Just bump up slowly till you get close or right on the money. I had the same issue with one arm dropping when under full throttle....this solved my issue....however I didn't know the RPM of my motors just that it needed to match the others and after miniscule adjustments at a time bam all good i can fly full throttle straight up! And as you suggest yourself a bad ESC could be your problem....good luck!
Is this happening in flight? Probably not unless the props are badly mismatched.
On the bench, I've sometimes seen big rpm differences through the throttle range, not always.
Seems to have a lot to do with the copter's idea of its attitude at the time.
I'm suggesting that recalibration of the IMU, and maybe using Mission Planner's Action 'Preflight Calibration' might make a difference.
C. J. Klingman
Sherman, TX