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I have a cylinder which I've extruded like so: Cylinder

I want to convert those edges to be curved like an arc inwards like so:

arc

Such that the entire bottom section is curved (the faces along with the edges).

Note: beginner

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2 Answers 2

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Make the bottom shape like this

enter image description here

Select this edge loop

enter image description here

Hit ctrl-b to create a bevel and play with the Shape slider

enter image description here

You can turn on Clamp Overlap and adjust the Width to get it to go all the way to the outer edges

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  • $\begingroup$ Absolutely beautiful! Thank you so so much for the effort in this answer! Is it possible to get the top line of the curve to merge with the cylinder? I guess by making the segments thin enough I could approximate that. I will experiment with this and maybe I'll stumble on something! $\endgroup$
    – Hmm
    Commented Feb 17, 2021 at 1:40
  • $\begingroup$ @Hmm See the last comment in my answer, "turn on Clamp Overlap and adjust the Width" This tells Blender to stop allowing any more adjustment when an outside edge touches another edge. So you can drag the Width slider until the bevel stops getting any bigger. It does create overlapping vertices but selecting all then merge by distance will clean that up :) $\endgroup$
    – Psyonic
    Commented Feb 17, 2021 at 5:10
  • $\begingroup$ HISEROD answer below is actually an easier way to do that :) $\endgroup$
    – Psyonic
    Commented Feb 17, 2021 at 5:16
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    $\begingroup$ AH! Sorry about that, didn't understand the first time. Makes sense! Thank you. I will try both methods. Man... I love the internet. So many kind people! $\endgroup$
    – Hmm
    Commented Feb 17, 2021 at 11:09
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Just make your extrusion (E, ShiftZ in my case) and bevel the inner edge loop (CtrlB).

enter image description here

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  • $\begingroup$ How do you make the extrusion only along the X and Y axis? $\endgroup$
    – Hmm
    Commented Feb 17, 2021 at 11:28
  • $\begingroup$ Never mind, found the answer, for those looking press E to extrude, then S to scale! $\endgroup$
    – Hmm
    Commented Feb 17, 2021 at 11:34

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