To Set the Default Representation for Chamfer Dimensions (AutoCAD Mechanical Toolset)

1. At the Command prompt, enter AMOPTIONS.
2. In the Options dialog box, click the AM:Standards tab.
3. In the Standard Elements list, double-click Dimension. The Dimension Settings dialog box appears.
4. Click Chamfer. The Chamfer Representation dialog box appears.
5. From the drop-down list, select the default representation for chamfer dimensions.
6. Click OK until all dialog boxes close.