SolidWorks® 2011 Parts Bible

CHAPTER 10

Using Equations

IN THIS CHAPTER

Using equations to create relationships between dimensions

Linking dimensions together

Assigning global variables

Entering expressions

Control suppression states of features and components

Linking to an existing equation from a SolidWorks model

Using Equations tutorial

Parametric sketch relations are not the only way to drive dimensions with intelligence. You can also use equations, link values, and global variables. Equations help you create simple or complex mathematical relations between dimensions. Link values are essentially a quick way of making two dimensions equal. Global variables can be used in equations like other dimension names. These three techniques are all very similar and related to one another in the interface, but are used in different ways in different situations.

Equations can cause problems if used incorrectly, but if you are familiar with how they work, you can avoid the common pitfalls and get maximum benefit by adding intelligence to your designs.

Understanding Equations

You can use equations to create mathematical relations between dimensions. You can find the Equations tool on the Tools toolbar or by choosing Tools Equations from the menu. Equations are stored in a folder at the top of the FeatureManager. Figure ...