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I'm building up this nozzle but can't get a clean look after sub-division.

I wonder what's wrong with the lines.

update:

here's how it looks after i deleted the inner faces. i guess the lines are just not arranged in a right way? i'd appreciate if anyone can point something out thanks!

enter image description here

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  • $\begingroup$ maybe there's a inner faces, or overlapping vertices? If you don't find, please share your file: pasteall.org/blend $\endgroup$
    – moonboots
    May 28 at 16:08
  • $\begingroup$ @moonboots just uploaded! thanks!! $\endgroup$
    – 55 woo
    May 28 at 16:08

1 Answer 1

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Make the outer faces invisible so that you can see what happens inside your mesh, as you can see there are inner faces, delete them:

enter image description here

As for you new file, as you see if you enable the Face Orientation display option, you have inverted faces. In Edit mode, select all and press ShiftN to recalculate:

enter image description here

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  • $\begingroup$ thanks i deleted the inner face!! but the result still looks problematic after shade smooth..... $\endgroup$
    – 55 woo
    May 29 at 13:28
  • $\begingroup$ I've edited my answer, it's a problem of inverted normals ;) $\endgroup$
    – moonboots
    May 29 at 13:37
  • $\begingroup$ !amazing.. thank you so much knowledge checked!!<33 $\endgroup$
    – 55 woo
    May 29 at 13:40

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