Calibrating the touch probe on a sphere

The touch probe head is calibrated by approaching a sphere of known diameter several times. The shifts of the touch probe head in the X and Y directions and the radius of the touch probe sphere are included in the identified calibration parameters.

In addition, the length of the touch probe is determined by specifying a reference parameter for the Z axis.

Optionally, the calibration of the known sphere centre point is repeated to improve the calibration accuracy.

Notice

The sphere diameter must be significantly greater than the sphere diameter of the touch probe for the calibration.