[Problem with back left motor/ESC]

Posted by Gonçalo Abreu on February 11, 2013 at 9:49am

EDIT:discovered the problem, timming issue with simonk firmware, im using and older release

So i was ready to buckle up the go pro for a test flight and this started to happen(notice the hissing sound and what happens when i bank left). I already tried changing the motor and esc with no success. Changing ESC actually made it worse.

https://www.youtube.com/watch?v=mi6YHuk2RcU&feature=youtu.be

The only thing im doing is banking left, you can notice the left back motor not recovering well and hissing

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Replies

  • Bob Roach February 11, 2013 at 4:23pm

    Wish I had your weather!

    Maybe something is resonating depending on your banking.

    I had my electronics stack cover do wierd resonances once....

    I assume you ruled out the easy stuff

    1. Loose motor

    2. Bad motor bearing (Hint: Use CLI "motors" function and listen to individual motors by touching a screwdriver tip near the motor and put your ear to the screwdriver handle)

    3. Something else on your quad ( take off your gopro mount or  stack cover? )

    Its a bit of work but as a last resort,  remove and replace the motors in different spots and observe if maybe the resonance changes.

     

    A few ideas anyway..... Good Luck

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