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I learned about the slide operation on edges. I use it to select a border edge loop, press gg and then hold alt to slide and increase the size of the border faces. Now I'd like to use this while extruding, rather than moving the edges. I want to keep the original edges and faces, but get a new row of faces along the selected border edge loop. The new border edge loop would be the result of sliding as usual, only the old loop is still there.

Note I don't want to slide the border edge loop to be in the new position and then have to recreate a new loop at the old position.

For example the following shape, viewed head-on orthographically.

enter image description here

Say I want to extrude the selected edges by sliding them. Extruding and immediately scaling is no good: (e, escape, s)

enter image description here

Instead I want to extrude along the lines also used for sliding: (gg, hold alt)

enter image description here

However I want to keep the old edges too. I want to add a new row of faces, the same as when extruding, but the shape of those faces is determined the same way as when sliding.

I hope I make myself clear. I think this question is asking the exact same, however they did not get a correct answer.

Cheers!

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    $\begingroup$ I suggest adding pictures to illustrate what you want. $\endgroup$
    – Ray Mairlot
    Commented Feb 10, 2017 at 16:10

1 Answer 1

Reset to default
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To scale the outer loopcut (like Edge Slide with Clamping enabled does) scale along normals.
Press E to extrude and Esc to cancel. There were created double vertices which have the same position as their parent vertices.
Now press Alt+S to scale along normals.

GIF scaling along normals

Note that after the scale procedure is done scaling won't provide the same result as normals' orientation for newly extruded vertices changed; they will move towards the view point because of that (Edge Slide will work instead).

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  • $\begingroup$ That did the trick! But only after recalculating my normals (ctrl+n and ctrl+shift+n). $\endgroup$
    – user35596
    Commented Feb 10, 2017 at 18:31
  • $\begingroup$ I might have spoken too soon. On my actual project, I get this result: i.imgur.com/yskNLsI.png The edges are not extruding along the sliding lines, which would be like this: i.imgur.com/bgv6D3j.png Any tips? $\endgroup$
    – user35596
    Commented Feb 10, 2017 at 18:40
  • $\begingroup$ It was set to Median Point, Bounding Box gives the same result $\endgroup$
    – user35596
    Commented Feb 10, 2017 at 18:49
  • $\begingroup$ Looking at the normals, they seem to be the problem. i.imgur.com/pyrg8r3.png For what I want, the normals should be pointing along the direction of the interior edges. I don't know why the normals are pointing in the direction that they are. $\endgroup$
    – user35596
    Commented Feb 10, 2017 at 18:55
  • $\begingroup$ Those normals seem to be created when I perform the extrusion. The normals of the original edges seem fine. $\endgroup$
    – user35596
    Commented Feb 10, 2017 at 18:59

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