Replies

  • T3
    Richard Boyhan June 22, 2013 at 1:57pm
    To actually see how your vibration is going, you need to enable RAW under logs in the command line interface. Fly a short 15 second flight in stabilize mode while hovering. Land and unload the log and browse way down and find a row labeled RAW and graph your zAccel. It needs to be between -5 and -15. Closer to -10 is ideal.
  • MR60
    Forrest Frantz June 22, 2013 at 10:26am

    Wow.  Is there!

    First start with the Wiki.  There is a section on vibration control.

    Adding vibration control can hurt as easily as help.  Dampeners can actually increase vibrations.  Isolators can also hurt to huge degrees.  In this latter case, the copter will not be stable as the APM can't tell what the motor booms are doing in a timely manner.

    The best approach is to try no dampening/isolation as your baseline.  Then add dampening to your copter.  But at each step run the following Excel worksheet.  Instructions are in the first sheet.  The right half takes you from the start (enabling the copter to record vibrations) and the left half tells you how to use the worksheet to analyze the data.

    Let me know if you have questions.

    Vibration Log Anal.xlsm

  • Graham Pollock June 22, 2013 at 10:25am
    I just use tape I don't get much vibration
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