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Re: PID control loops - closed loop feedback
wow that arm looks huge - now that you mention it, we did the same thing with our arm - used a much smaller gain going down than up - didnt want the arm to slam into the roller on the front of our bot.
if your arm goes over the top and down the other side, that does make it tricky. In general the way to get a feedback loop working is to start with low gains and increase them until you start getting overshoot - then back off a little.
(or goto engineering school for 4 years and learn all the math :c)
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