Adding Feature Control Frames

The AM_FeatureControlFrame command creates a feature control frame which you can attach to an entity in the drawing.

A feature control frame is a rectangular symbol used for displaying the conditions and tolerances of a geometric control on a part’s feature.

The command offers various geometric dimensioning and tolerancing symbols (GD&T) to specify geometric tolerances with feature control frames.

The feature control frame consists of the following elements:

  • GD & T symbol

  • Leaders

  • Surface extension lines

  • Surface indication leaders

Elements of a feature control frame

ex_feature_control_frame_elem

  1. Leader arrow

  2. Geometric characteristic symbol

  3. Diameter symbol

  4. Tolerance

  5. Modifier for the tolerance

  6. Datum

To create a feature control frame:

  1. Type AM_FeatureControlFrame.

  2. In the graphics area, specify an entity to attach the symbol to.

  3. Specify a point to define the leader.

  4. Specify one or more points to define the vertices of the leader and press Enter.

    The first leader segment is vertical or horizontal. To override this restriction, press Shift + F as you move the mouse pointer.

  5. In the Feature Control Frame dialog box do the necessary settings.

  6. Click OK.

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