Apparatuses and methods for automating the generation of additional different models of a mechanical object from a first model by logically partitioning the different models based on parameters that are specific to the particular model being generated. All of the models are independent representations of the same mechanical object, and may represent the design of the mechanical object in different phases of the manufacturing process, for example, the conceptual design, the as-cast design, and the as-machined design. In one embodiment, upon receiving a selection of a feature for the first conceptual model from a user, the apparatus and method can automatically calculate the corresponding contributions for each of the different models. The corresponding contributions can be automatically calculated based on modeling parameters that are specific to the type of model that is to be automatically generated.