Activity: Applying a symmetric about relationship
Applying a symmetric about relationship
Learn how to make features (1) and (2) symmetric to a target face about a symmetry plane (3).
Click here to download the activity file.
Launch the Activity: Applying a symmetric about relationship.
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Open activity file
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Open symmetric_about.par.
Problem: Make feature (1) symmetric to feature (2) about the symmetry plane (3).
Apply a rigid relationship
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In PathFinder, select Protrusion B.
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On the Home tab→Face Relate group, choose the Rigid relationship command
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On the command bar, click the Accept button.
Apply a rigid relationship to feature (2). You do this because relationships are applied to faces. You want the entire feature (2) to move with the face that has a symmetric relationship applied to it.
Create a symmetry plane
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On the Home tab→Planes group, choose the Coincident Plane command.
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Select the face shown.
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Move the coincident plane a distance along the axis direction that extends to the arc center shown.
Apply a symmetric about relationship
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Select the face shown.
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On the Home tab→Face Relate group, choose the Symmetry relationship command
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Select the face shown as the target symmetric face and then right-click to accept.
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Select the plane shown for the symmetry plane.
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On the command bar, click the Accept button.
Note:A symmetry relationship is automatically persistent.
Observe symmetric behavior
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Select the face shown. Click the axis and dynamically move it. Notice that the features Protrusion A and Protrusion B move symmetrically.
This completes the activity.
Summary
In this activity you learned how to make two faces symmetric about a plane. The selected face (seed face) is modified to be symmetric to a target face about a symmetry plane. Use the Symmetry relationship command. Only the seed face moves unless a rigid relationship is applied to the other faces that are to move along with the seed face.
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Close the file and do not save.
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Click the Close button in the upper-right corner of the activity window.
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