AutoCAD 2008 User's Guide > Annotate Drawings > Dimensions and Tolerances > Use Dimension Styles > Control Dimension Geometry > Control Extension Lines > 
Control Extension Lines
Concept Procedure Quick Reference
 
 
 

To modify the display of extension lines

  1. Click Dimension menu Dimension Style.At the Command prompt, enter dimstyle.
  2. In the Dimension Style Manager, select the style you want to change. Click Modify.
  3. In the Modify Dimension Style dialog box, Lines tab, under Extension Lines, change the settings as needed.
  4. Click OK.
  5. Click Close to exit the Dimension Style Manager.
 Toolbar: Dimension or Styles 
 Command entry: DIMSTYLE