Help about when I extrude build a new surface

Blender Courses Talk
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#1

Just finish the challenge. however, I have a question about when I extrude surface, There is always something new I don’t want to build.

Pyrimid3
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That the thing is.
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I want to select a surface, I find there is always some face that I don’t want to build it.
It is seen like a vertex, but when I select it, blender shows that is a face.
It can be deleted. But I think it must be something wrong I did so that the faces appear.
I want to make sure the face not be appeared next time.
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#2

I’m not sure what face appears when you extrude which you wouldn’t want… If you extrude you want an open hole into your model? Only thing I could think of is when you extrude into the negative, that’s the only way I would know which creates a double face!

#3

I find the reason why ,that is my keyboard problem, same like I extrude twice. Thank you bro.

#4

I was just going to suggest you extruded, and did nothing with it, then extruded afresh and made it grow as wanted. I have found that ‘unused’ extrusions add those faces of no visible face along edges.

Looks like you just worked it out too. :grinning:

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