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This tutorial shows modelling exactly the selfsame division equivalent in this http://www.youtube.com/watch?v=sdARvB_-cXY Autocad 3D tutorial. FreeCAD is people and country parametric feature-based 3D CAD. It's allay alfa (in video r4711), changeful and far to creation effort. Homepage http://sourceforge.net/apps/mediawiki/free-cad/index.php?title=Main_Page
