Following on from a question I raised the other day, I thought I'd solved the problem, but sadly not. The attached part shows the boundary surface, with two additional surface fills currently surpressed. The issue I have is that the boundary surface command appears to be creating an additional segment i my model I do not require. Because it's there, I believe it's causing later problems when I come to splitting the model into two new files, to shell out (typical 2.5mm wall).
Ideally I would like to shell the model before splitting it.
Can anyone see why Solidworks is creating this segment? (Annotated in the model) If so, how can I remove it?