all I know is that it has a tendency to mess things up by smoothing; and usually importing, you want to turn smoothing off. Only other thing is they might want some texturing..you might ask Sam's 3d, I think they do their work in Autocad (I haven't touched it since 1.4 or so..my 8088 took 2 hours to render St. Pauls'..;)

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)