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I'm trying to recreate the PARTU air purifier below, but I have problems cutting a circula hole into the curvy body.

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My approach is to model the curvy body first, then use a boolean circle to cut through it, like this:

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But the result is a total mess:

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What's the optimal way to make this shape in Blender?

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Actually it looks like the "crown" is a distinct part:

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So I would create 2 different objects, and for the main part I would do it this way:

  • Create your basic shape from a subdivided cube:

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  • Use the knife tool to cut (K to activate, Z to cut through)

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  • Press V to separate, delete the useless part.

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  • Mirror the shape, merge some vertices with alt M to keep a clean topology:

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  • Give your object a Subdivision Surface modifier, extrude the hole, add some edge loops to sharp the edges:

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  • Alternative topology (no triangle):

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You could also use a Shrinkwrap modifier to get a different topology:

enter image description here

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  • $\begingroup$ Thank a ton, moonboots. Your method is very clean. I'm trying to use extrusion as the main tool to create the shape, but it's far less optimal. $\endgroup$ – Đặng Hải Phụng Sep 15 at 12:51
  • $\begingroup$ you could also use extrusion with a shrinkwrap but it doesn't seem useful here... $\endgroup$ – moonboots Sep 15 at 12:53
  • $\begingroup$ After trying this in Blender, I'll find it necessary to say thank you again. The Knife + Z is extremely powerful. You've saved me a ton of time for this and future modeling tasks. ~~ $\endgroup$ – Đặng Hải Phụng Sep 15 at 12:56
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    $\begingroup$ Triangles are ok as long as you don't see any artefacts, and I don't see any here $\endgroup$ – moonboots Sep 15 at 13:03
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    $\begingroup$ I've edited my answer with an alternative topology + shrinkwrap solution ;) $\endgroup$ – moonboots Sep 15 at 13:10

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