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Defining a Feature Suppression Equation

In this example, you suppress a hole in a plate when the length of the plate is less than 40 mm.

The hole you want to suppress is part of a linear pattern, so you define an equation to suppress or unsuppress the linear pattern feature depending on the part length.

To suppress the feature:

  1. Open frontplate_01.sldprt from the previous example.

  2. In the FeatureManager design tree, right-click Equations and click Add Equation.

    The Equations and Add Equations dialog boxes open.

  3. In the FeatureManager design tree, click the linear pattern feature LPattern1.

    "LPattern1" appears in the Add Equations dialog box.

    If Instant 3D is active, you need to click-pause-click LPattern1. The first click selects the linear pattern. The second click adds it to the Add Equations dialog box.

  4. In the dialog box, complete the equation:

    "LPattern1" = iif ("overall length"<40, "suppressed", "unsuppressed" )

    You can type the entire equation or use the following tips to enter various pieces:
    • To insert global variable "overall length", expand Equations in the FeatureManager design tree and click "overall length"=100.
    • To insert "suppressed" and "unsuppressed", click the suppress and unsuppress buttons in the dialog box.

  5. Click OK.

    The new equation is added to the Equations dialog box.

  6. Click OK.


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