On 27 March 2014 09:50, Gene Heskett <ghesk...@wdtv.com> wrote: > What would be the usual way to toss a gear change constant into a servo > speed control so that the PID.#.error band is relatively well centered in > both gears?
You could try using http://www.linuxcnc.org/docs/html/man/man9/gearchange.9.html after the PID and before the DAC. Alternatively there is "lincurve" for altering PID parameters on the basis of something else. > I have one input left that I could use to report a switch was closed by the > lever being in high gear. On my mill I auto-detect the engaged gear (but I don't use any PID, I just trust the DAC to be linear enough for my purposes.) http://linuxcnc.org/hardy/dapper/index.php/english/forum/47-hal-examples/27071-automatic-spindle-gear-detection -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
