Mounting the calibration sphere

To measure a stationary rotary axis, the co-rotating calibration sphere must be positioned so that its position is as far as possible away from the centre of rotation. The angle about which the rotary axis rotates between each of the measurements should be selected so that the centre point of the calibration sphere lies far apart between measurements.

With moved rotary axes, the angles between measurements should be as large as possible. In addition, the position of the touch probe head tip must change when the measured axis rotates. If this is not the case, an additional rotary axis can be swivelled in at the beginning. However, the additional rotary axis may not be repositioned during the entire cycle. This special case is treated in the programming example “Measuring with inclined touch probe head”.