Meshing error
 

Hallo,everyone
I got a very complicated but perfect model.
But i failed to mesh it, since it showed in the command window:
********************
Load stl geometry file /home/cluster/t5131br/Documents/netgen/Zigo_zoom.stl
ERROR: Give up because of too many trials. Meshing aborted!
Meshing done, time = 5401.32 sec
*********************
Could anyone tell me what's the problem?
Thanks

- run your surface though surf
 

- run your surface though surfaceCheck or any other tool that checks the surface. See if it is a single connected, non-intersecting surface.
- specify smaller tets. Netgen sometimes gives up if the surface is too complicated for the tet size you specified.