Feature Control Frame (Dimension)

InsertDimensionFeature Control Frame

The Feature Control Frame command enables you to insert a feature control frame.

When you start the command, the selection list displays the following options:

Reference Entity

Enables you to select a reference entity to which you want to attach the feature control frame.

Position

Enables you to specify a point/segments of a leader line to position the feature control frame.

Symbol

Enables you to choose the geometric tolerance symbol.

	Straightness		Flatness
	Circularity		Cylindricity
	Profile of a line		Profile of a surface
	Parallelism		Perpendicularity
	Angularity		Position
	Concentricity and coaxiality		Symmetry
	Circular run-out		Total run-out

Diameter Symbol

Enables you to choose between the diameter and spherical diameter symbols to be included.

Value

Enables you to type in the tolerance value.

Material Condition

Enables you to choose the material condition symbol.

Entity Properties

Displays the Entity Properties dialog box that enables you to edit the feature control frame properties.

The following options are available under More Options.

Text only	When selected, enables you to insert the feature control frame without selecting a reference entity to attach it to. Hence, the Reference Entity option gets hidden automatically on selecting the Text only check box.
Plane	Enables you to choose the plane onto which you want the feature control frame to be inserted ( Work Plane, View, World). This option is available only in the 3D environment.
Leader line orientation	Enables you to choose the orientation of the leader line. The orientation could be Horizontal, Vertical, Free or Perpendicular to the target entity.

You can attach dimension entities to a measure or witness line of a dimension, as shown in the image below.

The surface texture can be attached only to a measure line for the following type of dimensions:

diameter
radial
linear
Note that the linear dimension is supported only when it is created by choosing the following dimension types from the Type drop-down list:

Snap point

Length

Point & line

The feature control frame and datum reference can be attached to a:

measure line, in case of a:
- diameter dimension that is passing through the center (point 1, as shown in the image above)
- diameter dimension as an external label (point 2, as shown in the image above)
- radial dimension (point 3, as shown in the image above)
witness line, in case of a:
- diameter dimension that is not passing through the centre (point 4, as shown in the image above)
- linear dimension

To implement the above behavior, the Reference Entity selector in the Surface Textures, Feature Control Frame, and Datum Reference selection lists now enable you to select a dimension (linear, diameter or radial) as a reference. In case of the Datum Reference command, you can select the feature control frame dimension that results in a datum reference attached to the bottom line of the feature control frame symbol.

The surface texture, feature control frame, and datum reference dimensions can be moved only along the measure or witness lines of the dimensions they are attached to. When the dimension is moved, they will also move along with it.

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Insert a feature control frame