A method of generating a CAD model of a part in a series of parts uses an assembly design table modified to provide the necessary parameters for creation of the model from the value of the parameters of the part that distinguish the part from the other parts in the series of parts. A user may identify the part to be modeled through a user interface on a computer on a network that communicates with a database of part numbers on a computer on the network and a CAD model server on the network.