Conditionally Suppressing a Feature

Next, you suppress the Chamfer1 feature when the pin shaft diameter is less than 1mm.

  1. Click Equations (Tools toolbar).
  2. In the Equation View of the dialog box, in the Name column, under Features, click the Add feature suppression empty cell.
  3. In the FeatureManager design tree, click Chamfer1.
    In the Equations, Global Variables, and Dimensions dialog box, the feature name Chamfer1, appears in the cell.
  4. Enter the following equation:
    Chamfer1=if("Pin Shaft Diameter" < 1mm, "suppressed","unsuppressed")
    1. In the Value/ Equation column, click Functions > if().
    2. Click inside the parentheses, click Global Variables > Pin Shaft Diameter and type < 1.
    3. When prompted, select mm for units, or type mm.
    4. Enter the rest of the equation by typing it, or by selecting Global Variables > suppress and Global Variables > unsuppress.

    This equation specifies that the chamfer be suppressed when the pin shaft diameter is smaller than 1mm. Because the pin shaft diameter is 0.87 inches, which is greater than 1mm, the chamfer is not suppressed.

  5. Under Global Variables, change the pin shaft diameter to .035in, which is less than 1mm.
    Before you enter units for a numerical value in the Value / Equation column, the Units list appears, prompting you to select units. You can select units that are different from the part units, and the result in the Evaluates to column is displayed in the part units. For example, you can enter .9mm instead of .035in and obtain the same result.
    The chamfer is suppressed. You can view this in the Evaluates to column and in the FeatureManager design tree.
  6. Under Global Variables, change the pin shaft diameter to .87in.