3x Motors spin after lowering throttle on Quad

Posted by Daniel Estes on June 12, 2014 at 12:36pm

I went to Mot_Spin_Armed and set it to 0.  When I arm and flipped my assigned safety switch on the TX to"On", all four motors will spin.  After raising the throttle, and lowering it back to zero, I may have three out of the four motors continue to spin.

Note:  This is my second drone that I have built, so I'm not sure what I am doing differently this time.

Second copter - 

3DRobotics APM 2.6 

Spektrum Dx18

Quadcopter

DJI 30 amp optos (Pre-programmed)

3DRobotics Power Module

Thanks in advance.

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Replies

  • Daniel Estes June 12, 2014 at 3:44pm

    Okay, the motors are all working now.  No twitching.

    I had to set the THR_MIN from 130 to 150.

  • Daniel Estes June 12, 2014 at 2:18pm

    I should add, sometimes when I arm the hexacopter, only two or three motors will rotate.  The other motor/s will "twitch".  Also, the problem is only on the 3 and 2 motors (left side, looking from the top view of the copter.

    - Need some help.

    Thanks.

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