When i test a model with the mesh tester in MED.
It displays sections of openned mesh.

The only way i can use these models is if i delete the opened mesh.

I need to keep this mesh.

Is There any way to close it or why is is open???

it means that you have unstitched parts on your mesh. You need to veld the vertices back (the broken ones, naturally) or add faces to the mesh to fill the empty gaps

this happens when you import geometry from external modelers such as Max, use vertex mode in med and restitch those verts one by one back together

i hope this helps,
cheers

ego

GOOD MAN EGO!!
Is there any automatic way??
How do i know which vert needs to be welded to which vert???

Thanks for your help ego. It makes sense now. The only porlblem i have is my model has 2000 faces with 500 open!! Il be a long time stitching!!!

Tahnks neway