If I have a solid part that was meshed on another software, only a mesh of the surfaces with triangles, and then exported as inp, is possible to create a 3d mesh from this in Mecway?
Have you tried the Mesh tools->Automesh 3D... feature? I loaded an stl file, which should be almost the same base to start from. Here, the Automesh did the trick.
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regards
Regards
Make sure it's a single closed solid with no cracks or internal surfaces. (View -> Open cracks)
All the elements must be oriented the same way (+W axis all outward or all inward).
You can try surface mesh first which is more likely to succeed and might reveal where the problem is.