I would use SolidWorks to design from start to finish simple plastic injection molds. I also helped the other designers on more complicated projects by getting the bases ready for the complex cavities. Even the simple items that were included in every mold like runners, water lines and ejection pins had to be carefully evaluated to ensure the proper function of the mold in a manufacturing environment. In addition to the 3D modeling, I would also create all the 2D blueprints for all of the projects. This would include creating a BOM and individual component drawings that a Tool & Die shop would use to manufacture the mold.