Geekery: The Magic of Injection Molding

plastic pellets

How do these plastic pellets become parts for our favorite games and hobby?

Ok, so it’s not really magic.

Plastic injection molding is used to create millions of different products. In this video Bill Hammack –  a chemical engineering professor at the University of Illinois – details the key engineering principles underlying plastic injection molding, and the technology’s history.

Bill runs a science centered YouTube channel – take the time to check it out. To learn more about how billiards went from using ivory to using plastic check out this fascinating article.


Did you learn anything new?