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Is it possible to extrude a face without leaving a hole / gap behind? See animation below. I would like it to remain a closed / filled face.

gif 1

I'm trying to avoid having to go back and fill in all the holes I may need to create after extruding.

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  • $\begingroup$ Hi :). Just keep in mind this would lead to non-manifold geometry. Unless that's what you want. $\endgroup$ Jul 19, 2022 at 8:08
  • $\begingroup$ No, I don't want that is there another way I should be doing this? $\endgroup$
    – Still
    Jul 19, 2022 at 8:12
  • $\begingroup$ inset to value one with 'i', then extrude. I'm surprised though that it does what you show $\endgroup$
    – Yvain
    Jul 19, 2022 at 8:19
  • $\begingroup$ @Yvain doing a inset with a value of 1 just makes the face smaller, and the hole is still there just smaller. $\endgroup$
    – Still
    Jul 19, 2022 at 8:26
  • $\begingroup$ Did you try it ? Inset at zero maybe to keep the same size and then extrude, you should keep your bottom... don't forget to recalculate normals after $\endgroup$
    – Yvain
    Jul 19, 2022 at 8:35

1 Answer 1

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That's the way extrusion works when there's another face next to the one you extrude:

enter image description here

You can still fill the face but it's not a good topology to have more that 2 faces connected to an edge:

enter image description here

To have a good topology give thickness to your bottom faces:

enter image description here

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