# [Gmsh] Conformal mesh on two parts

Krzysztof Bzowski kbzowski at agh.edu.pl
Thu Jan 7 09:44:09 CET 2016

```Thank you for quick reply.
My example with cubes was very simplified - created to explain the
problem. In practice I have a lot more complicated shapes, but general
idea is the same.

I have attached STL files to this email. They should work now.

Best regards,
Krzysztof

On 2016-01-07 09:33, Johannes Wimmer wrote:
> Hi Krzysztof,
> I am not sure about the stl-files. When I open them in GMSH, nothing
> appears on screen. Cannot be meshed either. If it was geo however, i
> assume that you did not include the facets of your inner cube in the
> surface loop of the outer cube.
>
> I am attaching an example that works. In line 67:
>
> Surface Loop(65) = {53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64};
>
> This should do the trick.
>
> Cheers,
> Johannes
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endsolidSurface Loop(2) = {1};
Volume(3) = {2};
Surface Loop(4) = {2};
Volume(5) = {4};
Coherence;
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```