Is there any way to make a surface like this?

Rhino
1

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I want to make a surface look like this with those lines but I have no idea.

  • I want half circle sections.
    Please help me.

Thank you.

2

For surfaces I’ll make two 2rails surfaces with circle sections next Boolean add, split Alf circle section finally make a radius on the hard edge… Sorry for my bad English!!! And mesh you can use shrink-wrap for the last step…

3

Thank you for your help! I’ll try it.

4

I am guessing you make two toruses and do a blendsrf between them.

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5

subd

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if you want to do it with SubD - check the following commands
_subDTorus (Faces 10, 6)
delete some faces.
_stich
_bridge
_reflect (twice)

nurbs

(EDIT:)
and if you want a more geometrical nurbs solution - and you do not mind the planar triangular surface - you can also use
partial torus surfaces - build by revolving arcs

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6

Wow thank you so much. It really helps me a lot.

7

What a great idea. Thank you so much.