Using the Measure Option To use the Measure option when creating or editing an equation: Do one of the following: Click Equations (Tools toolbar). Click Tools > Equations. Right-click the Equations folder in the FeatureManager design tree, and select Manage Equations. Select the Equations View . In the Equations section, click an empty cell in the Name column. Click a dimension in the graphics area. The SOLIDWORKS software does the following: Propagates the dimension name to the empty cell in the Name column and encloses it in quotation marks. Moves the cursor to the Value/Equations column. Displays a flyout menu with options for starting the equation. In the flyout menu, select Measure…. In the graphics area, select a reference, such as an edge, then drag to create the reference dimension. The selected reference name appears in the Value/Equation column as part of the equation. In the Dimension PropertyManager, make any changes to the parameters of the dimension and click . In the Equations, Global Variables, and Dimensions dialog box, click OK. You may need to click Rebuild (Standard toolbar) to modify the model. Parent topicCreate and Edit Equations in the Equations Dialog Box Adding an Equation Adding a Sketch Equation Editing an Equation Deleting an Equation Operators, Functions, and Constants Best Practice for IF Functions in Equations Specifying Units of Measurement Changing Dimensions by Configuration Suppressing Features in the Equations Dialog Box Visual Basic If Function