Originally Posted by
big john
I spent a few years working in small printed circuit board factories. Part of my job was cutting them to size using a pin router, which would send fiberglass dust airborne. Everything in the room would be covered with it, including me. I would itch like crazy and I finally quit the business when I coughed up blood. Docs say I have asthma and COPD, maybe partly due to that.
I did a similar job back in the early 80s, but we had a central vac system so there was no dust problem. Rough cutting, finish with a router, size the rails, and bevel the fingers, a lot of hand work with templates. About a year before the crash, we got a CNC router which was awesome, and doubled production.