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I'm trying to get a flat outside ring on this modified sphere for a 3d printing project. Currently I'm selected 3 faces at a time and then Delete (x) > Dissolve Faces (s). I don't mind the manual process but I would like to evolve my process for future use.

selecting faces on an oblong sphere

I'm trying to flatten this new faces to have a flat outer ring similar to an ibuprofen pill.

enter image description here

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Either follow Shady Puck's technique or simply use Collapse Edge Loops operator

In Edge Selection mode use by default Alt + Mouse Select to select a full edge loop, then press X > Edge Loops

Collapse Edge Loops

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    $\begingroup$ Ok, wow. That's really good! Def a +1 from me. $\endgroup$ – Shady Puck Jul 14 '16 at 12:09
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Luckily, there is an easy solution that solves both problems at once.

Key Alt + RMB RMB to select one of the three edge loops. Key Shift + Alt + RMB RMB to select the other two. You should have something that looks like the following.

enter image description here

Key X to open the Delete menu and select Faces.

enter image description here

This should leave you with something like the following.

enter image description here

Key Ctrl + Tab, then 1, or switch to Vertex Select Mode manually at the bottom of the 3D Viewport.

enter image description here --> enter image description here

Use Alt + RMB RMB and Shift + Alt + RMB RMB again to select the edge loops on each side of the newly created gap.

enter image description here

Key W to open the Specials menu and select Bridge Edge Loops.

enter image description here

Ta-da!

enter image description here

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  • $\begingroup$ "grow selection" (ctrl num+) is your friend here, too, and box select from an orthogonal view might be even easier. I guess grow selection makes it the easiest to keep symmetry. $\endgroup$ – John Dvorak Jul 14 '16 at 6:17

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