Silhouette command - why surface border too?

I occasionally use the Silhouette command when I’m modelling tooling splits. Afterwards, I always have to go around cleaning up the resultant curves, getting rid of those on the surface borders. I’ve looked for an option to ignore the borders without luck - would it be possible to add one?

Or is there a better method for finding parting lines? Other than using Silhouette.

Hello - yep, I know, always some cleanup up… and no there is not a better way in V5; V6/Beta has an option for adding the internal edges.


Thanks, Pascal. It’s always good to know that you haven’t missed an obvious alternative even if it means a little clean up is necessary. I’ll take a look at Silhouette in V6, thanks for the tip.