Leaving edge Upon Face Deletion
I'm going through a series of surface design videos. What I'm trying to do is delete a surface body, and leave two lines on the surface that intersects the bodies.
Here is the example of what I'm explaining. https://www.youtube.com/watch?v=b1ny_3M-j6U&list=PLUgk_zEXfs_UQE35wUr0QEuCbJbefs0NX#t=374
My file has the result I'm always left with. I've tried different selection order, re-extruded the surfaces ect. Including clicking show tangent edges.
The result.png is what I'm trying to achieve which is the blue lines and what I end up with is my_attempt.png
Not sure how to leave the edge, hope you can help.
He is deleting the 0.4mm gap between the extruded surface and it's offset- you were deleting a part of the extrude. In the attached snip from his tutorial you can see the gap where the surface has been trimmed in this gap (06:22 in the youtube video).