In this concise nine minute video, Bill details the key engineering principles underlying plastic injection molding and design for manufacture. He describes the history and the basic process. (source: youtube.com/watch?v=RMjtmsr3CqA)

This video may change how you look at everyday plastic parts. Go ahead and slide the battery cover off your remote and find the artifacts of manufacture. Then pause. Know more than you did a few minutes ago. You’re welcome.