Martin Gregorie  wrote:
> On Fri, 21 Dec 2018 21:17:08 +0000, D.M. Procida wrote:
>> I have an application in which I'd
>> like reasonable accuracy and precision, and for a 5-degree command (say)
>> to have a 5-degree output.
>>
> If you use servos, your program and hardware needs to be capable of
> generating accurate pulse widths that can resolve at least 100 steps
> across the 1 - 2 mS pulse width range. The accuracy of the pulse width
> determines the positional accuracy of the servo.

Alternatively, think about simple sensor feedback for the position.

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