/diy/ - Do It Yourself

How about plastic injection using recycled plastics? well he wrote a book on that too, you can make the molds out of plaster, and use recycled milk jugs, soda bottles, or lots of other free stuff. You can make anything you can think of with this, it would be useful for inventing and prototyping, making duplicates of hard to find or expensive to replace parts for just about any application.