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3

I can add one more point to RowanP's excellent list: the servo's PID is unreliable, not because of a defect, but because it is mistuned for your application. Recall that tuning a PID control is arcane, if not entirely a black art. The servo manufacturer tuned the control PID coefficients for some use case, perhaps moving RC aircraft control surfaces. That ...


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I had a few ideas about what might cause the jitter action you showed in the video. I suggest you'll need to be more specific in the information provided to enable more specific answers. Idea 1 - Movement Boundaries Conflict Is the joint trying to move past a physical boundary? When constructing your robot arm for the first time, the servos need to be in a ...


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tl;dr: use 6 V Those rascals are rated for 6 volts, not the nominal 7.4 V from 2S LiPos. You could imagine a Shenzhen manufacturer's design/value engineer zealously shaving a penny cost per unit by reducing safety factors and overstressing cheaper components, such that the servos would (mostly) work at 6 V but not necessarily at 7.4 V. I once tried to run ...


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