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I am learning blender for school and I need some help, I want to add groves to this control knob in the picture, but I'm not sure what would be the best way to go about it.

Should I try editing the mesh? Or should I try to construct a cutter piece?

Thanks in advance if you can help.

enter image description here

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1 Answer 1

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One easy way to do it is to use the Simple Deform modifier / Bend mode:

  • Create your segment:

enter image description here

  • Array it (enable the Merge option of the Array modifier):

enter image description here

  • Give it the Simple Deform modifier / Bend mode:

enter image description here

  • You can continue to work on the segment as much as you want, when you're glad with the result, apply the Array and Simple Deform modifiers (keep the Subdivision Surface if possible), merge the vertices:

enter image description here

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  • $\begingroup$ Thanks for the help, I'll go and try this method/modifier now $\endgroup$
    – PhyuPhyuU
    Nov 20, 2020 at 16:29
  • $\begingroup$ If you meet any problem please let me know ;) $\endgroup$
    – moonboots
    Nov 20, 2020 at 16:30
  • $\begingroup$ Hi I've managed to get to the point where I am adding the simple deform modifier, but it doesn't go the way I want it to, only if I set the origin to my reference photo does it bend the way I want it to, how do you rectify that? $\endgroup$
    – PhyuPhyuU
    Nov 21, 2020 at 14:41
  • $\begingroup$ apply the rotation in Object mode (Ctrl A) and choose Z as axis in the modifier $\endgroup$
    – moonboots
    Nov 21, 2020 at 14:47
  • $\begingroup$ Ah okay, didn't know I was supposed to apply the rotation, thank you very much, it's done now $\endgroup$
    – PhyuPhyuU
    Nov 21, 2020 at 15:16

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