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I'm trying to achieve the shape in the image below. Like an arched semi-circle with a thick border and a hole in the middle.

I tried it with the Solidify Modifier, but this only seems to work as long as I don't apply a subdivision. Is there a better way than to construct the mesh by hand?

enter image description here

/e: Thank you for all your answers! Insane to see how many different approaches can lead to a similar result. I didn't even know that geometry nodes could be used to create shapes. I'll keep learning.

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    $\begingroup$ If you apply a Subdivision Surface modifier you just need to create some support edge loops and it will sharpen the edges $\endgroup$
    – moonboots
    Commented Dec 18, 2022 at 17:11
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    $\begingroup$ Or in edit mode select edge and Shift+E (Crease) set 1 $\endgroup$
    – vklidu
    Commented Dec 18, 2022 at 17:15
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    $\begingroup$ .. it's common to follow up a Solidify modifier with an angle-based Bevel, to generate the support-loops @moonboots is talking about. $\endgroup$
    – Robin Betts ♦
    Commented Dec 19, 2022 at 9:33

3 Answers 3

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Just for fun, in the spirit of our @Gorgious, this can be done purely with old-school modifiers, starting with a single vertex at the object-origin:

enter image description here

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    $\begingroup$ sooo shiny! i love it +1 :D $\endgroup$
    – Harry McKenzie ♦
    Commented Dec 19, 2022 at 10:26
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    $\begingroup$ @HarryMcKenzie I gave up trying to play node-golf with you and Chris.. so the G&T at the 19th is on me :) $\endgroup$
    – Robin Betts ♦
    Commented Dec 19, 2022 at 10:46
  • $\begingroup$ what is G&T????? $\endgroup$
    – Chris
    Commented Dec 20, 2022 at 8:08
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    $\begingroup$ @Chris... Gin and Tonic, Ice. Slice. Oh.... and the dress is 'casual' .. (Plus-fours, tweed jacket, tartan socks. old-school tie.) $\endgroup$
    – Robin Betts ♦
    Commented Dec 20, 2022 at 8:29
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    $\begingroup$ hehe yeah plain old modifiers are not dead :) At least until we get bevel and screw nodes in GN ! Although I admit I don't miss the vertical modifier stack we could get in complex setups at all $\endgroup$
    – Gorgious
    Commented Dec 20, 2022 at 12:33
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what about a geometry nodes solution?

with this node setup:

enter image description here

you get this:

enter image description here

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    $\begingroup$ Why not making it complicated ^^ $\endgroup$
    – moonboots
    Commented Dec 19, 2022 at 9:35
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    $\begingroup$ of course, you have to scare people how damn hard it is to learn Blender and geometry nodes so that they don't use it and we become billionaires alone....!!! :D $\endgroup$
    – Chris
    Commented Dec 19, 2022 at 9:52
  • $\begingroup$ I will recreate this without any hope of understanding what I'm doing. But I'll try. $\endgroup$
    – Junevault
    Commented Dec 22, 2022 at 13:49
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Here's an easy and simple Geometry Nodes setup with a Solidify Modifier. You can easily adjust the Resolution, Arc's radius & sweep angle, object's extrusion and scale, and the thickness.

enter image description here

Demonstration:

enter image description here

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    $\begingroup$ This is great! I wish I could pick more answers as the solution! $\endgroup$
    – Junevault
    Commented Dec 22, 2022 at 13:50

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