How to create a surface from one 'open polysurface'

Rhino
,
1

Hi

I’m struggling with this issue. I just want to extrude this open polysurface to get thickness. No matter what I extrude them, it is extruded individually. (Guess it’s because it is not surface) Any way to convert it to one single surface ?

Thanks

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2

Share the file.

3

Also, would be great if there is any solution in Grasshopper.

To single surface.3dm (6.6 MB)
Mesh to Quad Nurbs.gh (9.0 KB)

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4

Quick solution you can use Weaverbirds Mesh Thicken.

ju
ju1099×441 122 KB

5

Simple workaround (assuming no internal gaps in the polysurface):
DupBorder the polysurface.
ExtrudeCrv the duplicated border by the desired thickness.
Copy the polysurface to the edge of the extuded border.
Join the original polysurface, the extruded border and the copied polysurface.

A similar proceedure should be possible in Grasshopper.

6

Thanks that must be the easiest way, but not quite proper when it comes to complicated mesh though.

7

Thanks David, the issue of making thickness is solved.

But by the way, It seems there is no way that I can transform open polysurface (no internal gaps in it) into one single surface? (more curious about)

8

But by the way, It seems there is no way that I can transform open polysurface (no internal gaps in it) into one single surface? (more curious about)

That surface has bad issues that’s why. No issues if those areas are removed…

9

Great! It worked as what you showed.

Thanks a lot.