I want to make cylindrical gyroid shape

[laurent_delrieu]

Hello
you can be a beginner in Grasshopper, but surely not on internet. So it is advised to first search for examples. Google is a good choice.
Here a good link

Weld seams between gyroid meshes

Here’s an example of the first approach: [image] minsurf_trim.gh (84.4 KB)

Minimal Surface Lighting Rhino Grasshopper Tutorial