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Author Topic: Pan Servo drift  (Read 3445 times)

FPVSteve

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Pan Servo drift
« on: June 07, 2016, 08:00:09 PM »

Any ideas why my pan servo might be drifting around centre?

It's a GWS sailwinch job, the standard thing everyone uses for a gopro pan - but whenever I land from flying LoS it's at about 45 degrees. I noticed it drifting ever so slightly while flying FPV and since I don't have a point of reference on the fuselage it can be a bit disorientating to say the least.
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marcin

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Re: Pan Servo drift
« Reply #1 on: June 07, 2016, 08:25:03 PM »

Trim and use some expo.
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FPVSteve

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Re: Pan Servo drift
« Reply #2 on: June 07, 2016, 09:14:50 PM »

It's on a pot/knob
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iPeel

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Re: Pan Servo drift
« Reply #3 on: June 07, 2016, 09:53:03 PM »

I have the same servo on my buggy and it does the same thing, I think they're just crap servos. I'm forever having to correct mine as it jumps around, they're just not accurate enough to be used as pan servos.
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Coyote

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Re: Pan Servo drift
« Reply #4 on: June 07, 2016, 10:08:59 PM »

It's a GPS copy if it's not holding its center property.  Or you have a bad / poor quality potentiometer on your tx. 
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FPVSteve

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Re: Pan Servo drift
« Reply #5 on: June 07, 2016, 10:12:25 PM »

Is it possible to specify a null zone for a pot on a 9XR? So that basically anywhere around centre is centre until the movement on the pot is large enough to warrant panning around?

I swear the nicer the gear I put on my planes the more issues I have :D
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Coyote

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Re: Pan Servo drift
« Reply #6 on: June 07, 2016, 10:27:20 PM »

I'm not sure the 9xr supports it. Sometimes a calibration of the channel can help, and with servo resolution too but again unsure of what can be done with the 9xr 
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