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Today, as I was making -for another post - the following part

enter image description here

Although, I managed to use a couple of ways to do the above (revolve a sketch, and b) using swept cut) I wondered how would I make grooves easily on a double curvature surface, e.g.

Something like :

double curvature
cymbal like enter image description here
dome enter image description here

(I don't know if there will be a difference, but the dome seems simpler somehow).

I would like to see how that would be done:

  • along an axis of symmetry (Seems to me simpler)
  • along an offset
Axis of symmetry Offset to axis of symmetry
enter image description here enter image description here
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  • $\begingroup$ I assume, it's a requirement for the 'groove' to be normal to the surface? $\endgroup$
    – Jonathan R Swift
    Commented Sep 24, 2021 at 16:09
  • $\begingroup$ not really. (for the double curvature that might be a bit too difficult. even parallel would be fine... $\endgroup$
    – NMech
    Commented Sep 24, 2021 at 16:14

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Placeholder answer - I've made the model, but don't have time to write up how I did it just now! :)

In short - make a plane, use intersection curve to make your sweep path. The, if you want to keep normal constant, make another path to use as a guide curve.

Placeholder

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  • $\begingroup$ LH is constant normal, RH is vertical $\endgroup$
    – Jonathan R Swift
    Commented Sep 24, 2021 at 16:38

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