Chapter 3: Working with Sketches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contents
Another way to put a value into the Modify box is to click the down arrow to the right of the value
field, and select either to use an equation to calculate a value or a Link Value. A Link Value is like a
variable name to which you can assign a value. You can link multiple dimension values to that
Link Value. In sheet metal parts, the default Link Value of Thickness is used; if you change the
thickness in one feature, it changes for all the sheet metal features.
To the right of the drop-down arrow is a pair of up and down “spin” arrows that enable you to
change the value in the Modify box by a set increment amount. You set the increment in Tools ➪
Options ➪ System Options ➪ Spin Box Increments. You can also store multiple increment values
within the Increment Value icon on the Modify box.
The final way to change the value in the Modify box is by using the wheel underneath the value
field. The wheel uses the default increment value. Pressing Ctrl while using the wheel multiplies
the increment by ten, and pressing Alt while using the wheel divides the increment by ten.
Here is a look at the Dimension Properties interface.
l Radial. You create the dimension by selecting an arc and placing the dimension. If you
want a radial dimension of a complete circle, you must right-click the dimension after you
create it, select Display Options, and select the Display as Radius/Display as Diameter tog-
gle, as shown in Figure 3.2. Alternatively, you could use the Radius or Diameter leader
display options on the Leaders tab of the Dimension PropertyManager.FIGURE 3.2
The Dimension Properties interface