History of Tuning LinuxCNC/HAL PID Loops|
http://www.ctc-control.com/customer/elearning/servotut/adjus.asp http://www.ctc-control.com/customer/elearning/servotut/pid.asp http://www.ctc-control.com/customer/elearning/servotut/bode.asp |
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all the articles were 404 |