How to close a mesh opening?

How to close a mesh opening?
My brain burns.

Close mesh opening 01.gh (26.1 KB)

The Mesh + plugin contains a cap mesh component - along with dozens of other useful items.

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Hoorayy! :tada::tada::tada::tada::tada::tada::balloon::balloon:

Hi,
Please help me my mesh are not close

image
brep from mesh rev1.gh (6.4 KB)
brep from mesh rev1.3dm (925.6 KB)

It would be a lot easier if I knew how you created these meshes to begin with, As you can see below, you have a number of naked edges which are probably a result of the method you used to create the original brep.

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thanks you for quick reply
It is view in Rhino model, right?
What command do you use to analysis meshs?
my mesh in grasshopper is not close, how to fix it?
image

I used the Show Edges item from the toolbar. show%20edges
How did you create your meshes? Were they meshes to start with or did you mesh breps?
Rather than fixing them, it might make more sense to make a model without them, that’s why I’m asking how it was done.

It’s not difficult to remake your stair only by using your steps in rhino.

Stair.gh (57.9 KB)

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Thank you what your command you use to make brep in Rhino?

No command, polysurface = Brep

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Thanks Michael,
But in my Rhino file it only are meshs

brep from mesh rev1_RE.3dm (3.6 MB)

Hey, your Mesh is closed now.
I did it without Grasshopepr though.

As Ethan Gross explained i looked at the “naked edges” of the mesh and deletete faces with naked edges with “_Deletemeshfaces”

After that i closed the open holes with " _FillMeshHole" and “_3DFace”

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Hi Thank you Nils,
I just try check your file I see two problem
Rhino warning this is bad mesh

And the position it not smooth, maybe was deleted some mesh from origin file