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Robot Jerking Servos

I added a pan/tilt system to my robot to track objects but the servos just jerk around randomly. Help? I'm using some Tower Pro servos I had lying around.



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Six Hexapod by EZ-Robot
Synthiam ARCx controls Six Hexapod with Auto Position gaits, joystick, voice, AI, vision tracking, and browser access.
Wi-Fi / USB
Servos 24
Camera
Audio
UART 3
I2C
ADC 8
Digital 24

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#1  

also, when I use a wired controller to control the pan/tilt system it's not very smooth, it just jerks around.

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Canada
#2  

My tower pro servos are not smooth either. Some times they move smooth and other times they jerk around. The ones I have are from eBay and were very cheap. I got what I paid for. From what I understand they draw more amps at the beginning of their movement than they are supposed to. I could be way off base on my thoughts. Have you figured out why you are having the problem with your servos?

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PRO
Synthiam
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#3  

Difficult to diagnose low quality servos - but it could be related to voltage exceeding their limits. I've experienced low quality servos jump around when the voltage exceeds their specification.