I know it is possible to change a Generative shape (superficial shape) into a solid shape in the part design section but what about the initial dimensions that have been specified in the GS section? Surely, they all will change after the GS is turned into a solid shape. The applied thicknesses onto the GS will change all its initial dimensions. How I can change a GS into a solid part with the same earlier dimensions in the GS. For example, when I designed a piston with 70 mm diameter in GS and changed it into a solid part with 4 mm thickness, the diameter would change into 74 mm (also other its dimensions), so how I can achieve a solid piston with the same previous 70 mm diameter?