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The following file https://www.dropbox.com/s/dpwqgv2brfgzstg/PathPrefab5.blend is part of a project I'm working on.

I tried to make a curved mesh by extracting faces from a cylinder, and extruding the extracted faces, constraining the z axis, to give the mesh depth. But the cubes resulting from the extrusion collide with each other. How can I create this without the meshes colliding?

enter image description here

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  • $\begingroup$ I'm not sure what you mean by "spaced in a side".. What happens if you extrude without moving the faces (E+Esc), then press Alt+S? $\endgroup$
    – gandalf3
    Jul 12 '14 at 19:27
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For that particular example, you could merge near vertices:

  1. Select all (A)

  2. Remove doubles (W> Remove doubles)

  3. Increase merge distance (F6> Merge distance) until the adjacent vertices are all merged.

Once you do that, you will still have internal faces. To get rid of them:

  1. Press Interior faces in 3D view > Header > Select to select internal faces.

  2. Delete them (Delete> Faces)

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If all you want is to make some faces thicker, you can use a solidify modifier enter image description here enter image description here enter image description here

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From your reputation, I see you are new to Blender Stack Exchange. Although I've no official capacity to do so, let me welcome you to the community.

I downloaded and studied your original blend file, and found that the faces you originally obtained from the cylinder were not connected. By extruding these faces you would up extruding each of the cubes separately. Extracting the faces from the cylinder so that they were connected, or failing that, connecting the faces using the method Gandalf3 suggested, and then extruding would have eliminated the collision of the resulting cubes, although you would still have been left with interior faces. However, if you had switched to edge select mode, and selected the perimeter edges all around the set of faces, and extruded from that, you could have then used the Grid Fill tool to avoid the interior faces, too.

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