[Paraview] writing volume to stl as topology

[Dmitry Tyulin]

Hello there!
I have a tetrahedral mesh in vtk unstructured grid. How can I write this
volume to stl (not just the surface) like a set of separated triangles?
Paraview display my data as a surface. Here is some screenshots of my model
and clipped model. My goal is just to handle this topology and then print
it by 3D printer.

Regards,
Dmitry
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