We've had some problems with rigid tapping since the machine was new. After breaking two taps this week I started wondering about following error and axis tuning.
The Z axis has always had a slight creep at the end of a jog move. I can touch off a feeler gage and the slip fit becomes an interference about 1-2 seconds after the last click of the dial. This is well beyond the settling time of a properly tuned servo.
Poking thru the parameter tables I noticed PID values are the same on all three axis'. While this is normal for a starting point when installing a new control it seems odd for a machine in service. Am I missing something?
The Z axis has always had a slight creep at the end of a jog move. I can touch off a feeler gage and the slip fit becomes an interference about 1-2 seconds after the last click of the dial. This is well beyond the settling time of a properly tuned servo.
Poking thru the parameter tables I noticed PID values are the same on all three axis'. While this is normal for a starting point when installing a new control it seems odd for a machine in service. Am I missing something?
