How to weld meshes?

When you have a cube that is split by faces, how can I make to weld them all into a solid?

I’m learning rhino, thank you!

I think you need the Join command to join the meshes together.

Thanks you for answer so far…
This is my file where I want to connect the faces into a single object.
sides.3dm (397.7 KB)
The curves slightly don’t share the same coordinates. I don’t know why… because when I created those two faces, i used the curve of the rail. Important here is that the rail must keep it’s coordinates and i have to cap it on each 3 sides left. How can I do it? I lost just one day doing this :frowning:

As I said in the other topic I'm trying this for one hr and still no result :(

Use Sweep2 not Patch. Then you will not have gaps and you can use Join to join the part to a closed polysurface. There are no meshes in this file and the title of this topic is therefore misleading.

There are only a few cases in which Patch is the only solution and only if you have exhausted the other options like Sweep1/Sweep2, EdgeSrf, PlanarSrf, etc.

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Hi Alex - here’s what I’d do, given what you’ve got so far-

  1. Set the file tolerance to .001. (DocumentProperties > Units page) For objects this small I’d always start at .001 or smaller.

  2. DupBorder on the two flattish surfaces.

  3. Untrim these surfaces.

  4. Pull the border curves to the surfaces and retrim.

  5. Explode the edge surfaces.

  6. MatchSrf for Tangency or Position with ‘Match by closest points’ and ‘Preserve isocurve direction’ set.

Now it should all Join - the trimmed surface edges were not close enough to the surfaces previously. I would then cut the top very slightly with a level plane and Cap to create a closed solid.

sides_PG.3dm (276.5 KB)

(incidentally, these are not meshes, they are surfaces )

-Pascal

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Thank you guys so much for your help, now I know how to do it!