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This edge is not extruded


I want to extrude the edge in the plane direction but receive the error message. It is extruded in other direction that are wrong the directions for the edge



Super Moderator
The highlighted plane (red) looks OK for the direction in the view above, but maybe it's an optical illusion???

To extrude a surface from that profile, try defining the direction by selecting the line (edge) I circled in green.
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After posting the question I tried to find the failure by myself so I did examine other ways to create the edge among sweep, but my effort was in vain.

Finally I realized there was a defect in the edge and I decided to cut the end of that (shorten it) because I estimated there was a curve with an intense angle which was created before unwanted. after cutting both the method of extrude and sweep worked orderly, but I used sweep to connect the two edges, because extruding the red edge could create two separate involving edges.

Nonetheless, your advise is a good experience for me for the next works

Thank you very much :)