>>NPower stopped support of their plugin after Rhino 3, so honestly that plugin is probably dead as doornails.

I was just curious. I use Rhino mainly for surfacing and have no need for booleans/shelling. I use other products for that.

>>i believe your rail curve has a little bend near the end.

Well, it is not my rail curve, but as you mention, having the "cap ends" enabled on extrude, then selecting the end caps for shelling would produce better results.


- manz