Datum Feature Symbols

You can attach a datum feature symbol to the following items:

In a part or assembly, on a planar model surface or on a reference plane
In a drawing view, on a surface that appears as an edge (not a silhouette) or on a section view surface
A geometric tolerance symbol frame
In a note
On a dimension, except for:

Ordinate dimensions
Chamfer dimensions
Angular dimensions (unless the symbols are displayed per the 1982 standard)
Arc dimensions

To insert datum feature symbols:

Click Datum Feature on the Annotation toolbar, or Insert, Annotations, Datum Feature Symbol.

You can pre-select a dimension or geometric tolerance symbol to attach the datum feature symbol to the annotation, or you can drag the datum feature symbol onto the dimension or geometric tolerance symbol after it is created.

Edit the options in the Datum Feature PropertyManager.
Click in the graphics area to place the attachment and then the symbol.
Continue inserting as many symbols as needed.
Click OK .

$art\DATUM01A.gif$

If you drag a datum feature symbol off the model edge, an extension line is added.

To edit a datum feature symbol, select the symbol.

NOTE: If you use ANSI dimensioning standards, you can display datum feature symbols in the 1982 style. To select this option for the active document, click Tools, Options, Document Properties, Detailing. In the Dimensioning standard section, select ANSI from the list, then select the Display datums per 1982 check box.

$art\datum82.gif$

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