I want my mesh to connect so I attempted Intersect (Knife). As you can see these edges are not connected, I pulled it away for the picture so you can see the topology.

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So I selected these faces and used Intersect (Knife)...

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Then it looks like there was added vertices. However if the vertex is grabbed and pulled away, you will see that only one of the faces, meaning that I can't merge doubles because the other face doesn't have any vertices added from this operation.

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  • $\begingroup$ Intersect works well of clearly intersecting geometry, not coplanar tangentially grazing barely touching edges. $\endgroup$ – Duarte Farrajota Ramos May 8 '17 at 21:06
  • $\begingroup$ Then how to merge them? $\endgroup$ – Accumulator May 8 '17 at 21:21
  • $\begingroup$ Lots of ways. Off the top of my head, erase the big face and extrude the three edges to the side until the fill the remaining gap. $\endgroup$ – Duarte Farrajota Ramos May 8 '17 at 21:43

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