To create a Vision Notch Slot, do the following:
For machines supporting DCC
motion, select DCC Mode 
if you want to create and measure notch slots in DCC mode.
Select Auto
Notch Slot 
from the Auto Feature toolbar. You can also
select the Insert | Feature | Auto | Notch Slot
menu option. This opens the Auto Feature
(notch slot) dialog box.
Vision Notch Slot Auto Feature dialog box
With the Auto Feature dialog box open, select a notch slot in one of two ways:
CAD Selection Method - From the CAD tab, click once near the edge of the notch slot on the CAD surface to establish the notch slot's location.
Target Selection Method - From the Vision tab, click five points as follows: Two points (1 and 2) on the edge opposite the opening; two points (3 and 4) on each of the parallel sides of the notch; one point (5) on the edge just outside the notch. This establishes the notch slot's location. Adjust the lighting and magnification as needed.
Click as close as possible to the CAD element to ensure PC-DMIS does not choose an incorrect element.
PC-DMIS Vision automatically places the nominal data for the notch slot into the Auto Feature dialog box. The hit targets are automatically displayed for the notch slot.
Adjust the nominal information in the Auto Feature dialog box to match the theoretical values of the notch slot. Also, adjust the values of the Probe Toolbox as needed.
Click Test to test notch slot measurement.
Click Create on the Auto Feature dialog box to add the notch slot to the measurement routine.
Save the measurement routine for future execution. See "A Note on Executing a Vision Measurement Routine".