One or more of the fixed edges are parallel to the draft direction. This would lead to a corrupt taper surface. In the example below the red face must not be used as a fixed element since the edge common to the fixed face and the taper face would be parallel to the draft direction.
• Possible Solutions:
◦ You need to use a different draft direction.
◦ Do not specify the parallel edges as fixed edges (see picture 2).
Problem #2:
Different draft angles are specified for different faces of a tangential face set
• Possible Solutions:
◦ Faces that are tangentially connected need to be tapered with the same draft angles