How to thicken the surface(Edge surface) in Grasshopper

[jessyauu (ooo)]

I used triangular panel in Lunchbox → control point → connect the edge surface to the point, but it could not be offset to become solid.

First part

Second part

[amo310597 (Anuj Modi)]

It will be useful if you provide the Grasshopper file. It becomes very difficult for people to respond otherwise.

Refer this:

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[jessyauu (ooo)]

Sorry about that!
Here is it.

surface pattern1.gh (32.4 KB) surface pattern_1.3dm (2.6 MB)

[amo310597 (Anuj Modi)]

[jessyauu (ooo)]

Thank you for your help! But it does not become a solid, but a offset plane.

[amo310597 (Anuj Modi)]

You can now loft these two surfaces to get a solid.

[jessyauu (ooo)]

Oh Thank you!
After I tried to replace the of move command by the extrude command, it works!