Greetings; It has occurred to me that much of my stiffness control problems in the spindle servo come from a fixed clocking of the lowpass filter I am trying to use to smooth the feedback from the encoder with.
This I think, stems from the servo-thread clocking being at a steady pace. But I keep thinking in terms of using a gain of .25 in order to blend the passing of 4 edges of the quadrature input and average out the mechanical wibbles that get us about a 2% tolerance in the actual square waves out of each opto unit. Would it be possible to be able to clock the lowpass, not with the servo- thread, but with the passing of an edge detection event in the encoder module? Or is there another module we already have that would be amenable to such a lashup in the .hal file? Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! > Ok, I see you know what you're doing :-) Either that or I've gotten pretty good at faking it. I was taught to respect my elders, but its getting harder and harder to find any... ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
