Loft a list of closed curves and extrude them

Hi everyone,

I am struggeling with the last part of my design and hope for some help.

I have a lofted surface, that I managed to divide in equal parts and offset so I have a equal pattern on it like I want.

I now have a list of closed curves. The problem is I can’t manage to close the curves (I tried loft, boundary surface and edge surface). I can close a single one by dividing the curve, but I need a solution to enclose them to a surface and extrude all. I can’t wrap my head around how to transfer the idea from the single curve to all of them.

I used shaper3d and lunchbox, so it might be that you can’t open the GH. So ideas to close closed curves to a surface also work.

Best, K


offset problem KK.gh (105.1 KB)

offset problem KK Edited V0.gh (17.5 KB)
Please organize your wires next time, it can save your helpers time.

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Thank you so much for the quick help!

Your structure looks so much simpler. I have the to do the same operation with several surfaces. But when I plug in a different surface it won’t work anymore. Can you see why that is the case? I attached a GH file.

offset problem KK Edited V1.gh (24.5 KB)

Also, is it the case that the single tiles get bigger towards the top of the structure or does it just seem like it? Because I tried to have the tiles always in the same format, but just bended.

offset problem KK Edited V2.gh (22.2 KB)

I like to know how either, or is that really possible?
If I unroll the surface, there is an area difference already.


If I do the Flow Along Surface all the areas will be different.
Black morphed surfaces’ areas, white planar surfaces’ areas.