Dimensioning and Tolerancing a Hole 

This task shows you how to create tolerances in a series using the Tolerancing Advisor.

  1. Click the Tolerancing Advisor in Annotations toolbar.

    The Semantic Tolerancing Advisor dialog box appears.

  2. Select the planar surface as shown.

    The Semantic Tolerancing Advisor dialog box is updated.
    The buttons and options available in the dialog box depend on the selected features and the standard used:
  3. Click Semantic Datum (One surface): .
    The     Datum Definition dialog box appears.
    The datum specification appears both in the specification tree and in the geometry.
  4. Select the option Create a DRF with the last created datum.

    Press the Ctrl key and drag the created annotation in this case the datum specification in the geometry to place it as required.

  5. Click OK.
    You can see that datum     A is created.

    The Datum Reference Frame A is created in the specification tree also.

    The Semantic Datum icon in the Semantic Tolerancing Advisor dialog box is turned to red indicating that this specification is already defined on the feature.
  6. Select the circular hole located at the center as shown.

    The Semantic Tolerancing Advisor dialog box is updated.

  7. Click the Diameter icon (One surface): .
    The     Limit of Size Definition dialog box appears.
  8. Select Tabulated values.

    Press the Ctrl key and drag the created annotation in the geometry to place it as required.

  9. Click OK.
  10. Click Label A in the Semantic Tolerancing Advisor dialog box.
    The     Semantic Tolerancing Advisor dialog box is updated.
  11. Click the Perpendicularity Specification icon: .
    The     Geometrical Tolerance dialog box appears.
     You can see that the options and modifiers that are relevant to the tolerance type and the features that have been selected are proposed.
  12. Change the Numerical value to 0.05mm and select Maximum Material Condition (MMC) modifier.
    The perpendicularity tolerance is automatically grouped with the previously created size tolerance.
  13. Click OK.
    Press the     Ctrl key and drag the created annotation in the geometry to place it as required.

  14. Click Unselect.

  15. Click Semantic Datum (One surface): in the Semantic Tolerancing Advisor dialog box.
    The     Datum Definition dialog box appears.
    The datum feature specification is automatically grouped to the previously created size tolerance and perpendicularity tolerances. Press the Ctrl key and drag the created annotation in the geometry to place it as required.

  16. Click OK. You can see that datum B is created.

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