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Vibration/oscillations

Discussion in 'General Technical Talk' started by Onyx, Jun 4, 2018.

  1. Onyx

    Onyx New Member

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    Hello, i have oscillations on my quad-copter, and don't know how to correct it. I think it might be my tunint that is bad don't know what to change, everything seems to work perfectly except these vibrations, look at the video.
    I have everything tightened up and it isn't my camera that is badly straped or anything. I really don't know what it is and when i do a lot of flips, my motors heat up a lot. could anyone help me?
    Thanks :)
    Link to the video of my quad's vibration:
     
  2. RENOV8R

    RENOV8R Active Member

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    This is a common problem, and 99% of the time it turns out to be a loose board INSIDE the camera. That's the first thing I'd check
     
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  3. VirtueViolater

    VirtueViolater Well-Known Member

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    Sounds like a bad tune to me, too much d maybe?
    EDIT: try turning down pitch and yaw "d" 20 percent or more, keep a check on your motors, dont let them get hot. warm is ok. If you can't keep touching them, they are way too hot.
     
    #3 VirtueViolater, Jun 4, 2018
    Last edited: Jun 4, 2018
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  4. theGreenOrange

    theGreenOrange Well-Known Member

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    Looks like internal problem with camera lens to me. I don't really hear any bad prop oscillations.
     
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  5. theGreenOrange

    theGreenOrange Well-Known Member

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    But yeah Virtue, that is a good idea to check those.
     
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  6. Onyx

    Onyx New Member

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    Yeah my tune isn't really good, i think that may be the cause but can't manage to get it right, i'll try to lower my d gain. But i don't think that it's the camera board that is loose because the footage you see on the video was recorded with one of my old go pro, and in my video feed there is the same vibration... Appart from my D gain being a bit too high do you have any other idea from where the oscillations could come from?
    Thanks a lot :)
    Edit: the oscillations that really bothers me is the ones that i have at 1:15 in the video if you look, it's sort of a mid throttle oscillations
     
  7. VirtueViolater

    VirtueViolater Well-Known Member

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    Mid throttle vibes are usually caused by too much d and it also causes motors to get hot, that being said, is your fc isolated?
     
  8. RENOV8R

    RENOV8R Active Member

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    Is your flight controller soft mounted?