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I have a 3D cad model of a wine opener, what I'm not satisfied is that it's using a rotary handle to rotate then open a wine. It's not user friendly enough. I would like to change the way of opening a wine. Besides this, my CAD also incl. other 6 small tools which I would like to keep them as it is. ONLY THE WAY OF OPENEING A WINE NEEDED TO BE CHANGED. I will need 3-4 sketches on different ideas and finally will be picken one to move forward. If you don't mind we would like to sign an NDA prior sending any files.