Removing Redundant Geometry Faces

Delete the redundant faces in the geometry to create a horn.

1. In the model tree, select Union1.
2. In the details tree, under Faces, go through the list of faces. For each face, click on to hide the face until only Face13 and Face14 are displayed.
   1. Select Face13 and Face14.

      
      

      

      
      Figure 1. Select the two redundant faces.

   2. From the right-click context menu, click Delete.
      Note: Deleting one of a regions's enclosing faces, removes the PEC region.
   3. Select any of the remaining faces and from the right-click context menu, click Show All.

Figure 2. The redundant faces were deleted.