However CONVTOSOLID native AutoCAD command can also convert DWG objects to 3D solid, it is well known that in many cases, even for simple 3D mesh models, it fails with the 'object cannot be converted' error message printed in the command line window. These options in common and most cases are sufficient to convert any polyface mesh entity. It is possible to automatically unify or invert mesh normals and also to fill up and create any missing holes in the mesh structure. To support and improve mesh to 3D solid conversion Automesher add-on comes with additional functionality to fix input 3D mesh models by healing their geometry. When CONVTOSOLID fails to convert mesh to solid
