2004

518 | Chapter 20 Dimensions and Tolerances
Choose Dimension Arrowheads
Drafting standards for termination symbols differ. AutoCAD provides seven
standard types of arrowheads. You can apply a different type to each end of
the dimension line and control the size of each. The order of arrowheads is
determined by the order of extension lines. The first extension line is where
you specified the first extension line origin when creating the dimension. For
angular dimensions, the second extension line is counterclockwise from the
first. Leader lines use the first arrowhead only.
The first arrowhead type automatically applies to the second arrowhead
unless you select a different type for the second arrowhead. You can choose
not to use any arrowheads or to use one arrowhead only. You can also create
your own arrowheads.
See Also
“Customize Arrowheads” on page 518
To choose an arrowhead
1 From the Dimension menu, choose Style.
2 In the Dimension Style Manager, select the style you wish to change and
choose Modify.
3 In the Modify Dimension Style dialog box, Lines and Arrows tab, under
Arrowheads, select the arrowhead type for the first end of the dimension
line.
The second arrowhead is automatically set to the same type.
4 To set the second end of the dimension line to a different arrowhead type,
select an arrowhead type from the 2nd list.
5 In the Size box, enter a size for the arrowhead.
6 Choose OK to exit.
7 Choose Close to exit the Dimension Style Manager.
Dimension or Styles toolbar
Command line
DIMSTYLE
Customize Arrowheads
The arrowheads AutoCAD provides are stored as block definitions. To use
your own arrowhead, provide the name of an existing block definition. For
information about creating blocks, see “Create Blocks Within a Drawing” on
page 317.