> The problem is under the covers somewhere and the Joint 2 following error > isn't totally accurate but is what happens later. > John >
That reads like the spindle stop time is overly long to me. Actually the spindle stops so quickly that I can hear the splines rattle in the pulley driver. I suspect that the spindle stops and then starts back in the clockwise direction too quickly and the Z axis can't do that fast enough. My spindle is an AC Servo run with step/dir so I could change some values in the ini file. [SPINDLE_9] MAX_VELOCITY = 50.0 #MAX_ACCELERATION = 30.0 MAX_ACCELERATION = 300.0 # The values below should be 25% larger than MAX_VELOCITY and MAX_ACCELERATION # If using BACKLASH compensation STEPGEN_MAXACCEL should be 100% larger. STEPGEN_MAXVEL = 62.50 STEPGEN_MAXACCEL = 375.00 The acceleration values of the spindle are dramatically faster than the Z axis. [JOINT_2] TYPE = LINEAR HOME = 0.0 FERROR = 0.05 MIN_FERROR = 0.01 # 3.2:1 Max Speed MAX_VELOCITY = 2.50 MAX_ACCELERATION = 10.0 # The values below should be 25% larger than MAX_VELOCITY and MAX_ACCELERATION # If using BACKLASH compensation STEPGEN_MAXACCEL should be 100% larger. STEPGEN_MAXVEL = 2.75 STEPGEN_MAXACCEL = 20.0 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
