To generate a center basic scan without the use of CAD data:
Select the desired point in the list in the BASICSCAN dialog box (Insert | Scan | Center).
Take a hit on the part. This completes the values for that point.
The CutVec is the normal vector of the plane in which the probe remains free while centering is done by the controller. The InitVec is the initial approach vector at the start point.
For more information about the BASICSCAN dialog box and the center basic scan, see "Performing a Center Basic Scan".