Dave Engvall wrote: > Having said that it would be most interesting to have a system that > used the information from both a linear scale and an encoder on the > ball screw. I'll let the really bright guys dope out how to make that > work. ;-) >
Since EMC's PID loop is now part of HAL and easily replaceable, I can envision a special PID loop that has multiple feedback inputs. Position feedback for the I term (long term position accuracy) would come from the scale. Position feedback for the P term and velocity feedback for the D term would come from the motor encoder. Regards, John Kasunich ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
