Do you remember when 3D solid modeling hit the market? I guess it started a little over 15 years ago. You had parameters that would drive changes in features that would, in turn, manipulate product geometry. Drawings updated automatically. It was pretty amazing at the time. Now, do you remember when the movement came to mold and tool design? The picture painted back then was equally amazing. Apply some global shrinkage or other tweaks, subtract the product geometry to create the cavity and crack that mold. Presto: you were done. Guest post hosted by Siemens PLM.