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Originally Posted by Alan Anderson
You're missing something relatively important in your thinking here. Yes, a good driver can effectively be the element that closes the loop, but only when there is a driver at the controls. However, a reliable autonomous routine pretty much requires closed loop software control of motor speed.
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I'd qualify that a bit with "an autonomous routine that has a decent chance of screwing up."
If you're just knocking off the hanging tetra, you can go open-loop (as the only thing you have to do is drive forward a smidge and raise an arm). There's very little chance of this screwing up, as you're not going far, and the hanging tetra is a big target.
Now consider the 10-point ball from FIRST Frenzy. Tiny target, really far away. Break out the encoders, folks.