for those interested in using blender for industrial design as a idiation tool here is a nice example of how blender can be used:
the digital rendering and hand made:
as you can see the top handle of the knife is different, well the silver deformed because i forgot to secure it, all i have to do is to bend that but i will do that later.
well as you can see i had some trouble with keeping dimensions in mind in blender. the cocaine container changed a lot. but thats not to bad anyway.
blender helped me a lot and offered me most tools i need for serious modeling and rendering my metal work. well with true nurbs tools things might be faster, because than i would not have to model filles and holes which are a pain with polygones to get the desired edge renderings but the subdiv tools in blender work quite great!