Point-Based CAD/CAM Technology for Shoe Last

A point-based method is proposed in the paper to realize shoe last CAD/CAM. By the method, firstly, point-based geometric model of shoe last is defined, and a surface point data set after regular processing is used to represent the shoe last model. Secondly, the CAD method for shoe last is realized based on this definition. The design process is fulfilled by manipulating the point set. Finally the CAM method for shoe last is introduced. The tool model is constructed and the detailed process of cutter location calculation is presented. With this efficient technology, a practical shoe last CAD?CAM system is developed and applied to practical production in success.