Autocad used to export in .dxf format, probably still does. Mike and Sharon Custer (Sams3d) do stuff in CAD..not sure how much help they'd be, but you're not alone.

Numeracy? Isn't that what they have on the back of fortune cookies? good numbers and lucky numbers and stuff?..;)

 

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

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