Boolean on Curved/elipsed Surface and Bevel.

Hello,  

I need your help — I’m having a hard time with Booleans in Blender, especially when working with curved or elliptical surfaces. The results get messy or unpredictable, and I can't add bevels to the edges the way I need. Any advice or tips.


025-06-15 083412.png

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  • Martin Bergwerf replied

    Hi BBlendash ,

    Booleans very often result a really bad Topology (not just in Blender, as far as I know). That means you will probably need to do a manual cleanup, before you can Bevel.

    Depending on the situation, you might also be able to use an Input > Bevel Node in the Shader Editor.

    Booleans_00.png

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  • Gerard van den Brul(gerardjan) replied

    Hey Blendash,

    When you apply a boolean modifier you will often have to clean up the topology to match it with the rest.

    What you can do is apply it and then merge the vertices from the cutout shape that fall into a square to the nearest of the sphere’s vertices. (Left to middle shape) I find it the most convenient to work only with the cutout and later extrude the cutout inwards. Afterwards you can grid fill the extruded part to match the surrounding geometry. (Right shape)

    With that in place you should be able to apply a nice bevel.  I hope it helps.

    In my example I used a non-destructive Bevel modifier so it’s easier to adjust afterwards.Pills.png

    Pill.png

    • 👍🏻
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  • Omar Domenech replied

    Yeah I third what everyone else has said, your mesh will usually need clean up. That is why you need to learn how to model cleanly first, so you know all the gotchas and how to get your mesh to behave well. A lot of people lean on the boolean method and get lazy and are overwhelmed and mesh cleaning stage comes along. So I always suggest to learn all the rules first before you're allowed to break them. 

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