Hi Michael,

I can see that gap now, however, that curve (with gap) is actualy the edge of the swept surface produced from the geometry created from a 2 rail sweep. If you check the model I posted, enable the sweep layer(style), you will find the construction curves for the sweep. The actual corner rads (for the top sweep rail) was produced by blends. In such a 2 rail closed sweep, should edges like that be produced as it will cause some problems if not found in early stage of constructions.


- Steve