Blender 2.72b NURBS Surface + Boolean Modeling Test

Blender 2.72b NURBS Surface + Boolean Modeling Test

Cycles Freestyle Render...

Blender 2.72b NURBS Surface + Curve base model...

Metasequoia 4.3.1 Boolean Modeling(Metasequoia Boolean = Blender Boolean)

Test of another way...
Blender 2.59 Addon Curve Tools Test...