To create a datum from features

Use the Datum From Features item to specify a datum using a plane, line, and point item.

To create a datum:

1. Click Alignments & Datums tab > Datums panel > From Features.

   

2. Enter a Name for the item. The name is used in the inspection sequence, in the Report and Info tabs, and when referencing the item in other items.
3. To display the datum in the CAD view, select the Visible check box.
4. In the Coordinate system list, select the coordinate system relative to which the datum is reported.

   To specify the coordinate system during the inspection, select <Active Alignment>. You can then specify the alignment using the Active Alignment list on the Measure tab.

5. In the Reference plane list, select an item to specify the Z = 0 plane of the datum.
6. In the Reference line list, select an item to specify the X axis of the datum. If the axis does not lie on the reference plane, the line is projected onto it.
7. In the Reference point list, select an item to specify the origin of the new datum. If the point does not lie on the reference plane, the point is projected onto it.

   Click to select an item from the CAD view using the mouse.

8. Enter any extra information about the item in the Comment box.
9. Click OK to close the dialog and add the item to the inspection sequence.