About 40 years ago, I took a plastics class where we made some little pieces using acrylic, and polyester resin, but what I'm interested in is finding a little knowledge about what plastics to use and techniques to create dust fittings for power tools, for example, a fitting to attach to my Makita skill saw dust chute which would fit to my vac hose. Use about a 1 1/4" hose to connect to my ROS and belt sander, and have one router rigged up to use it, works so good! Now I'd like to have dust fittings on all my power tools.