Abstract: A two-shot mold for a bottom case of ergonomic mouse was designed based on UG6.0. Considering the features of complicated surface and two-shot injection, the design for slides and lifters, and TPE over-molding were discussed. The mold's trial run indicated that the design of the mold was reasonable, convenient in fabrication, and automatic in operation. The molding process Cpk was over 1.33, cycle time of molding was 43s, thus fully met the need of high quality and high efficiency of molding.

Key words: ergonomic, 2-shots injection, part line, two-shots injection, mouse, bottom case