Dear GMSH, I have had a look at gmsh. It has a tutorial on how to create a simple 2D model. But you have no tutorial on how to create a simple 3D model ? Is there such a tutorial ? Say for example a cone ? There does coma a dmo / example of a cone, but doe not seem to work, cannot create a 3d volume mesh of it unlike the sphere which you can. Thanks. Best Regards Mr Rasul