Thanks Chris, yes, I did accept Bonded as the default Interface going in,
but then intentionally defined the individual Contact Regions as described.
That overrides the Default. But, I see what you're saying, if the Default
is Bonded, the interface doesn't show you anything that tells you that for
an individual surface pair. In my work things are almost always Bonded so I
have never considered the fact that it should tell you that. In full
disclosure, there is the reminder text at the bottom of the screen...
We use mostly Creo EP 5 (which is really WF5) for analysis...I should jump
to Creo 2, I know. The point you make below may well be just what I need to
make the move. Because, in WF5, the Contact Region dialog box specifically
says, "Pick a Surface", and does not allow multiple selections. Nice
improvement in Creo 2, ehh?
Now then, none of this really addresses the core of my question which is a
somewhat inconsistent behavior in these partial cylinder Contact
Regions...sometimes they act like a hinge pin and sometimes they do not.
Rod G. points out that adjacent surfaces SHOULD also be part of the contact
definition, and yet at least one time I still wound up with a "hinge".
Regards,
Gavin