When I want to connect two faces smoothly, I always draw these lines, then blend them, then make a network for each of the sides, then make the two planar faces and join everything to a solid.
It works, but it's a bit tedious. (And sometimes there's a gap or something so that the resulting solid can't be unioned with the rest of the object.) Anyone got a better idea?
Hi Andre, just to illustrate what Burr wrote - these are the faces to delete:
Then you can select 2 edges like this and run Construct > Blend to make a blend surface:
The reason to delete the faces is to control which surface the blend will be smooth to. When it is a joined edge shared between 2 surfaces it doesn't know which of these possible directions to use:
You want the face to be removed so the edge only belongs to one face.
Michael,
I had to test it, but your added "Multi Edge Blend" works in this case with the seperate edges. So I deleted the 2 faces, selected show naked edges and ran blend!... Poof! Voila!