Sorry… I didn’t see the connection with this issue and my questions about Push/Pull… I thought they were totally unrelated.
I only posted this as someone suggested that I show my model…
I hardly thought this was that small… its over 1" long… And there are no curves, its all straight lines… So I just wanted an understanding of what I did wrong and why that line is there and can’t be deleted.
And more importantly, what the dark grey area shows around the hole and how to fix it. If I understand this correctly, the dark area is an inside face… And using CADSpan’s preview, I can see that the outer face is actually on the inside.
So somehow I have managed to invert this face and have no idea how I would go about fixing it.
It doesn’t really matter… I 3DPrinted it and it came out fine… So I am not particularly worried… Just trying to learn really.
Edit: Hang on… Fixed it… Right click and there is a “reverse face” option… Clicked that and now it looks right.
So all I need to understand now is why I have a line through the middle of the bottom (flat) face which removes the face when I delete it… I have drawn it back in with the line tool and after clicking 2 corners, the entire face re-appears, so perhaps thats all there is too it.