Your Trusted Source for Injection Molding since 1948 This commitment to maintaining strict quality control over each phase of your project, may mean lead time is extended. In the long-run, this could save you hundreds of hours in frustration and thousands of dollars in costs of poor quality products. Rider Plastics uses the latest versions of Solid Works and SURFCAM to design and digitally machine your mold. Rider Plastics is a member of the Better Business Bureau.