Yaw rotation stops after 270 degrees.

[nealj4]

Hi Guys.
Im trying to do 360 rotational pans for aerial video work and now Im seeing my yaw come to a stop, or halt after about 3/4 of the way around ( 270 degrees). I am holding the yaw stick very smoothly, but it stops rotating after 3/4 of the rotation unless I give the stick a lot more input then it continuous but it starts up with a jerk and I loose my smooth aerial pan. Using a Naza V2 with GPS and a Spektrum DX7 / Ar8000 on a Tarot 680 Pro.
Any thoughts would be appreciated.

 

[SleepyC]

Is it a brushless gimbal? If so and you are using a alexmos board, the FC would have nothing to do with it. There are rotation limits that are definable in the Alexmos software. I'd start checking there.

 

[nealj4]

Hi Sleepy, it is not the camera gimbal I am rotating. It is the copter.

 

[SleepyC]

OK.. interesting. Hmm...

Do you have any servo programming on that channel (YAW/RUDDER) like servo speed, or an excessive amount of expo in the radio itself?

 

[Hexacrafter]

Perhaps a bad POT on the Rudder stick?
Is this a new problem or it has been this way all along?
Perhaps try a different radio?
Perhaps hook up a servo to the RUDD output of the RX and see if it acts the same??

 

[nealj4]

Hi Sleepy C, I do have 70% expo on the rudder channel, but I have had since day 1. (this problem is fairly recent) It gives slow smooth rotational speed for panning. When I go to monitor mode on my DX7s and watch the slider it appears to move smoothly and proportionately. Hexacrafters suggestion of a bad spot in the POT makes a lot of sense. I will try a regular servo to see what happens.