We have converted our mill to CNC and EMC2 and all is fairly well. http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?JakeAndRussells
Having a little trouble getting the tuning "just so" however. I set P and D to get an acceptable step response and all is fairly well. however when I have the table moving at a set speed there is a fixed offset, IE the table lags .01 or so behind. so I use FF1 to null that out so the ferror hovers around 0 and it all looks really good. Unfortunatly when I change that cruise speed (g1 F200 vs G1 F100 say) the ferror goes up, and I start either leading or lagging the set point. I can tune to hover around 0 error at any given speed, but as the speed changes I start getting error again. Any tips? ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
