Computer aided chair design system using form features

This paper deals with "computer aided chair design system" based on form features of chair elements that constructs the 3D product model of a chair from a sketch drawn by a designer. In design processes of a chair a designer usually wants to express his/her idea of the form and structure of a chair by drawing sketches because sketching is one of the most desired manners for expressing designer idea. Besides, CAD data of a chair are essential in its manufacturing processes. In this study, a system is proposed to construct the 3D CAD data of a chair by arranging the form features of chair elements with fitting them on a-sketch. The system enables designers to easily make the 3D chair models from their idea sketches and to evaluate the design-form by figures from the various visual angles.