Modeling an overmold

Hello,

I am trying to model an overmolded part, where I have the models for the first shot and second shot tool design, but I don't have the second shot modeled with the cavity of the first shot in it. In essence I would like to subtract the first shot part from the second shot to create this cavity in the second shot. I need this done because I want to do a moldflow on it for a core shift analysis, but I need the second shot to have the cavity in which the first shot lays.

Sorry if this sounds confusing, I'm trying to word it as best I can, But my basic question is, can you subtract a model's geometry from another model?

Thanks,

Brendan

SolidworksPlastics And Mold Design