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I'm currently working on a machine gun and I need to detail the front of it. What it requires is sort of "ramps" on this section. This is my nozzle thus far:

Nozzle

And here is an image in which the nozzle of a real gun has ramps. As you can see, they extrude into the mesh and slope in towards the center. The ends are rounded but that's not of concern. MG3 Machine Gun

I'm basically trying to achieve this, but all the way around the nozzle. I know how to do it one by one, and I know how to checker deslect and extrude, but I can't think of a clean or time efficient way to do this. Any ideas?

Desired Ramp Geometry

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2 Answers 2

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You could try using "Spin Duplicates"

Create 1 of the "ramps" and delete the rest of the faces enter image description here

Then use the Spin Duplicates tool to spin the selected faces around the 3D Cursor. It takes a little getting used to, but it's a good tool for this kind of thing. enter image description here

There will be some clean up so be sure to Merge by Distance the result (I had to bump up the default distance to clean it up well)

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    $\begingroup$ That's done it! Thank you. Never used that tool before but seems handy. $\endgroup$
    – PlanetAlexanderProjects
    Jan 26, 2021 at 23:25
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Just for fun, you could do it procedurally.

  1. Add Array modifier
  2. Add Simple Deform Modifier > Bend > 360°
  3. Add Weld Modifier to merge the start/end vertices.

enter image description here

You can also non-destructively adjust the radius by moving the Origin point.

enter image description here

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  • $\begingroup$ While I can see this being useful for some situations, I'm hoping to not have to restart the geometry I already have. Thanks for taking the time to answer though! $\endgroup$
    – PlanetAlexanderProjects
    Jan 26, 2021 at 23:12
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    $\begingroup$ @PlanetAlexanderProjects Oh, sure, this was mostly for fun :). $\endgroup$
    – jachym michal
    Jan 27, 2021 at 8:19

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