Wandering servo

[Mortificate]

Ok so I have an elevator servo that likes to wander to maximum throw at about 3/4 stick and send my heli to the moon never to be seen again. LOL
I am gonna replace the servos anyway so I am not even gonna bother fixing this but I would, however, like to know why this is happening for future referance.

[Mortificate]

LOL, 23 view and no one has any input. Hmmmm, by "Wandering" I mean that servo works as it should ( up/down) untill I get to aproximately (and this doesn't happen every time) 3/4 throttle on my CPP (these are stock CPP servos) than instead of staying at 3/4 the elevator servo continues to move untill it is at maximum throw and buzzing.
Not sure that needed clearification but there ya have it. :D

[txflyer]

the servo hates you.. plain and simple. its thinking im gonna mess this dude up just watch. you should hook it up to a lipo and buring it up..

[Mortificate]

I KNEW IT!!! That SOB is gonna pay. That is two ECrap servos I have gone through so far ( 6 months). Is that normal? Are these micro servos that crappy or is it just Ecrap servos?

[carlo_the_wonder_frog]

There is a Potentiometer(Pot)inside the servo ,its basically a variable resistor. As the gears move they also move the pot , as the resistance changes the servo knows how far it has moved. Your Pot is going bad and when it gets to a certain point it gives the servo no feedback therefore the servo reacts by moving even further to try and go to the commanded position.

Best explanation I can give, I'm sure someone else out there can clean it up and make it presentable.

[Mortificate]

Ok, that makes sense. Thanks.