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I made a circle and then made a boolean cut into it with another circle. But when I apply the sub. surface, the outer circle is fine but the inner section changes into a weird quadrilateral. I want the cut to be in a shape of a circle. How do I solve this?

A really weird circle cut

Zektor
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    Booleans always produce horrible topology, see this https://blender.stackexchange.com/questions/74922/how-can-i-make-holes-on-a-wrist-strap – m.ardito Oct 01 '17 at 13:06

1 Answers1

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  1. Remove the sub surface modifier
  2. Delete the center edge on both sides
  3. Select the big and small edge and press F to fill the edge. With the f2 addon just press F until it fill all the edge. Repeat on both sides
  4. Then add the sub surface modifier
  5. If you need smooth inner side add crease.

enter image description here

Dimali
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atek
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