Replies

  • T3
    Thorsten November 11, 2015 at 8:47am

    Hi churl11,

    this might be related to vibrations induced by buzzer tones when changing flight modes. You should check for IMU inconsistency.

    Where do you have your buzzer mounted?

    Best regards,

    Thorsten

    • churl11 > Thorsten November 11, 2015 at 6:15pm

      i haven't my buzzer mounted.

    • Cala > churl11 November 12, 2015 at 4:20am

      I changed dead band to 80, first flights looks better and rise a little mid trottle (I had a little low).

    • churl11 > Thorsten November 11, 2015 at 6:13pm

      3702603130?profile=original

  • Jiro Hattori November 11, 2015 at 4:12am

    It may be over powered or less powered on your hexa-copter.

    Please check "Setting Throttle Mid" on the wiki.
    http://copter.ardupilot.com/wiki/ac_throttlemid/

  • FerrosonicFPV November 11, 2015 at 4:01am

    I've seen this before when I had a switch on my Tx that was getting old. The transmitter signal seemed to glitch slightly when changing flight modes. I assume all your failsafes are working and have been tested.

    Try changing flight modes with the Telemetry, be sure to change modes the exact same way, Manual to Guided, or Manual to Alt Hold, whatever it is you were doing.

    If issue still occurs, I would try altering your hover throttle setting, turn it up a bit. Having a skewed hover throttle has definitely caused this effect for me.

    Lastly, simply try to reset the drone to defaults, and reflash the flight controller. If you are not using a new board then a reflash of the board is always a good idea.

    Good luck

    Nice job getting the chart. Very interesting to see. 

    • churl11 > FerrosonicFPV November 11, 2015 at 6:08pm

      thanks！Justin.

      i use futaba T8FG，when I fly the hexa-copter with 3.2.1, it is all right with the flight modes changing.

      i will try changing flight modes with the telemetry later to see what happen.

      you said it！ i will try to reset the copter to defaults and reflash the fireware. it is a good idea.

  • Cala November 11, 2015 at 3:46am

    Do you set mid throttle?,

    That's happens to me changing from stab to pos or alt hold with 3.3 if throttle is little low, I think that dead band is higher now, I decrease a little to test but no enougth time to try well yet.

    Try to rise your throttle a little when change mode to see what happens

    • churl11 > Cala November 11, 2015 at 5:54pm

      thank you for your reply.

      the hexa-copter needs 50% throttle to hover.so i have set the mid throttle as 500.  

      i agree with your opinion that the dead band may be  higher than 3.2.1. that will make the copter sink.

      but is  the dead band  changeable ?  or can I adjust the dead band?

  • churl11 November 11, 2015 at 1:40am

    3702122482?profile=original
    the pilot is increasing the

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