Abstract: The interactive design is a technology of easy-use and feeling-happy in product design process. By introducing interactive design in products, especially in mechanical and electrical products, it can make product design better. The meaning of interactive design and the relationship between interactive design and virtual reality technology are discussed. The function of Cult3D in interactive design is described. Taking the design of Gao Liangjie Wax Machine in the Tile Product Line as an example, the significance and applicable value for using Cult3D in interactive design is illustrated.

Key words: computer application, interactive design, virtual reality technology, mechanical and electrical product design