Layer decomposition and constitution modeling for rapid prototyping

摘要

Current rapid prototyping techniques have been used to produce freeform solid models. This usually involves new dedicated fabrication machines incurring costly capital additions, maintenance and materials. In the current paper, an approach is proposed where rapid layered prototypes are fabricated using standard generic 2D machining systems and commonly available sheet materials. The process necessitates the decomposition of a computer aided design (CAD) object into cross-sectional profile layers. From these machined profiles, they are then constituted to form the prototype. Several prototypes of varying sizes having quite complex internal and external profiles have been fabricated. A discussion into the merits and potential limitations of this approach is also made.