Creating Dimensions and Associated Datums

This task shows you how to create dimensions and associated datums on body in white surfaces.
Five hole types are available for tolerancing:
  • Cylindrical hole.
  • Elongated hole.
  • Rectangular hole with angular corners.
  • Rectangular hole with rounded corners.
  • Other hole from previous.

  1. Select the hole edge as shown on the part. 

    The Semantic Tolerancing Advisor dialog box is updated.

  2. Click the Diameter icon (One surface):

    The Limit of Size Definition dialog box appears. Keep options as is, only clear the Perfect Form at MMC Not Required check box if needed.

  3. Click the OK in the dialog box.

    The dimension is created.

  4. Click the Datum Feature icon (One cylinder):

    The Datum Feature dialog box appears.

  5. Click the OK in the dialog box.

    The datum is added to the dimension.

  6. Select the two hole edges as shown on the part. 

    The Semantic Tolerancing Advisor dialog box is updated.

  7. Click the Distance Creation icon (1 slot/tab):
    The Limit of Size Definition dialog box appears. Keep options as is, only clear the Perfect Form at MMC Not Required check box if needed.

  8. A message box appears: click OK.

  9. Click the OK in the dialog box.

    The dimension is created.

  10. Click the Semantic Datum icon (1 slot/tab):

    The Datum Feature dialog box appears.

  11. Click the OK in the dialog box.

    The datum is added to the dimension.
    The dimensions and datum are created in the geometry and specification tree.

  12. Do not close the Semantic Tolerancing Advisor dialog box to perform the next task.