Creo Simulate > Reference Links > Boundary Edges
Boundary Edges
Creo Simulate highlights all boundary edges. A boundary edge is an edge associated with only one shell or solid, unless the edge is associated with a solid and a shell coincident with a face of that solid.
If your model contains boundary edges that are not associated with a curve, Creo Simulate highlights just those edges separately. You can use this information to identify missing elements.
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