As the boss steps out of the washroom, you hand her a print of the finished drawing, shown in figure 19. That is the main power of a good parametric modeler. I just changed the numbers in some of the dimensions, then selected Update. The program transferred the new dimension values to the solid model, which updated itself to match the new numbers. Now we come to the really fun part.
Parametric modelers can also work with assemblies.
Given that I already had the parts as 3D solid models, it took me less than an hour to create the exploded view, parts list, balloons, and cross-section shown in figure 20 and the individual part drawings of figure 21. You can generate views, parts lists, balloons, and cross-sections from the 3D model. Individual part drawings are easy to extract from the 3D model. To make revisions to 2D drawings, simply change the solid model and select update. I then changed one number and pressed Update.