Creating Datums

You can create a datum element by selecting a geometry.

Before you begin: Open an existing 3D shape.
See Also
About Datum and Datum Target Elements
  1. Activate the Front View.x annotation plane.
  2. From the Annotation section of the action bar, click Datum Feature
  3. Select the attachment surface for the datum feature.


    The Datum Feature dialog box appears with A as default identifier.

  4. Click OK to create the datum if the identifier corresponds to your choice.
    • The datum feature is created in a specific annotation plane.
    • The datum entity (identified as Simple Datum.xxx) is added to the tree.



    Important:
    • This datum is only a 3D annotation without any semantic link to the geometrical tolerancing.
    • Once a coordinate dimension is created, you cannot change its type (i.e. you cannot turn a 2D coordinate dimension into a 3D coordinate dimension, and vice-versa).
  5. Select the datum and drag it anywhere.


    It remains in the annotation plane.