Dr. Henshaw: I'm new. Can Overture generate a surface mesh based on the intersection of CAD surfaces and grid cells, i.e. each surface polygon would be the intersection of a CAD face and a grid cell (cube)? I assumed that the grid cells are smaller than CAD surfaces. Thank you, Jim Ma _________________________________________________________________ Hotmail® is up to 70% faster. Now good news travels really fast. http://windowslive.com/online/hotmail?ocid=PID23391::T:WLMTAGL:ON:WL:en-US:WM_HYGN_faster:082009