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I have these faces:

enter image description here

Now I'd like to add faces in a way that creates the shape of a chinese hand fan:

enter image description here

How can I achieve this?

This is my attempt with E+S (extrusion and scale), which is wrong:

enter image description here

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  • $\begingroup$ The only thing that looks wrong here is the pivot-point of the scale.. it's at the 3D cursor, which is not at the centre of the existing concentric arcs. $\endgroup$
    – Robin Betts ♦
    Oct 4 at 5:12

2 Answers 2

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Instead of a S to scale try Alt+S (scale along local normals). Also you need to do it in two separate steps. First: E followed by RMB (RightMouseButton) to validate the extrusion but not move the vertices. Then Alt+S to scale out your fan shape.

So it is:

  • Select the vertices,
  • E RMB
  • Alt+S drag mouse outwards and LMB to validate the scaling.

See gif below:

enter image description here

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  • $\begingroup$ Hi, it seems that this allows me to scale along only one of the normals, but not two of them at the same time. Any ideas? imgur.com/a/EkAoGlk $\endgroup$
    – reign
    Oct 3 at 19:24
  • $\begingroup$ See my modified answer . $\endgroup$
    – 3fingeredfrog
    Oct 3 at 19:54
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You can create one segment, and use an Array modifier with a rotated empty as an object offset:

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