Calypso CNC User Forums

Hi.
I wounder, when I do a calibratin with my 3mm probe and get a result that the probe should be 2.978mm, should I put this value into the toolpage? Or does the system take care of it so I just ceep the 3mm in my toolpage and the system do the nessesary corections? Also, do I have to do a calibration everytime I use my mill?

Regards

civtek

Hi,
In this example, the 3mm is the physical diameter of the probe tip. When doing the calibration, the software will calculate the "effective probe tip diameter" - in this case that appears to be the 2.978mm value. When the calibration is done, the software offers to replace the tool table diam with the newly found effective diameter. If you picked that choice, the tool table should already have the 2.978 value instead of the old 3mm value. If you did not pick that choice, you can just put that value in for the diameter of the probe tool #.

You do not have to recalibrate each time the probe is used.
This assumes that you mount the probe in the same relative rotation within the spindle each time.
This also assumes that the probe shaft is a constant length. Some probes have interchangeable shafts. If the shaft length changes, the effective diameter will change, and you will need to recalibrate. This is because the cosine error that the calibration process measures is a function of the angle between the shaft when vertical and the angle of the shaft when it triggers (some angle is physically needed or the shaft would be triggered when vertical).

Dave

Thanks Dave, make sence.

Civtek