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Re: Problems with tuning shooters using AM basketballs on Practice Field?
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Originally Posted by squirrel
I'm thinking that this is a good solution to part of our problem. I wonder what the odds of us being able to implement new code on Thursday (AZ regional) are?
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Very high I'd bet. Our student programmed disabled the PID loop and added the voltage control in 10 minutes. I'm no expert, but it seemed very simple.
Quote:
Originally Posted by wireties
So a gain that made it stable with no load did not compensate for the change in load when compressing a ball? Then raising the gain to help made it oscillate under no load? We might have the same problem... what motors do you use?
For teams incorporating a compensation factor - was the factor a simple constant or a constant multiplied by V or maybe V squared?
TIA
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I believe that's what was happening to us. We're using two RS550s for our shooter. PIDs might work better for other teams with higher-inertia shooters. Our shooter consists of five 4" long rollers made from 0.065" walled aluminum tube, there is hardly any mass/inertia there. We couldn't even get a stable no-load PID loop, it was causing some seriously scary motor arcing.
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Theory is a nice place, I'd like to go there one day, I hear everything works there.
Maturity is knowing you were an idiot, common sense is trying to not be an idiot, wisdom is knowing that you will still be an idiot.
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