Click the arrow under the Dimension tool and select Dimension.
If you are creating a dimension in 3D, click a face to create an annotation
plane on which to place the dimension.
Mouse over the faces of your design to preview the eligible annotation planes.
(In Sketch and Section mode, the sketch grid defines the annotation plane.) If
multiple objects occur at your cursor location, use the scroll wheel or arrow
keys to highlight each one.
If you need to change the annotation plane, right-click and click
Select New Annotation Plane from the context menu and
select a new annotation plane.
Click an edge or face that belongs to the chamfer.
Hover over your design to preview the possible dimensions.
Click to create the dimension.
You can flip the orientation of chamfer dimensions by setting the Flip
Chamfer Dimension property to True.
Annotation options in the General page of Detailing option in SpaceClaim Options offers choices for how chamfer dimensions are
displayed.
Default chamfer dimension style:
Linear: Displays the dimension with extensions lines
as in the images above.
Normal to chamfer: Displays the dimension with a
leader pointed normal to the chamfer as shown in the image below.
Default chamfer dimension text format:
<length> X 45: Text is displayed as in the
images above.