Hi, in certain cases meshing a complex Stl file, I obtain a tangle of faces; why??? Procedure: 1) file / open 2) geometry / elementary entities / add / new / volume 3) mesh / 3d Operating system: Windows xp. Raf. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.geuz.org/pipermail/gmsh/attachments/20100710/c504de1a/attachment.html>