Create a probe path to measure specified points on a surface.
Approach Distance — The height above the surface normal, where the probe starts approaching the surface at the Measure feed rate.
Search Distance — The distance up to which the probe continues searching for material, when no contact is made with the part over the Approach Distance. If no contact is made along the Search Distance, the probe returns an invalid measurement.
Retract Distance — The height above the surface normal, up to which the probe retracts away from the surface at the Connection feed rate.
Approach move — The path of the probe tool as it moves down from the safe area, to the Approach Distance. The speed of this move is specified by the Approach feed rate.
Measure move — The path of the probe tool as it searches for the part along the Approach Distance, up to the Search Distance. The speed of this move is specified by the Measure feed rate.
These are the maximum distances, above and below the nominal surface, up to which probed points are in-tolerance.