I'm literally going to print that page and hang it over the cutter. Thanks.
Note: That page does say in the second paragraph: "It is not always obvious which materials will work - for example: Polycarbonate/Lexan produces flames and lethal chlorine gas which will rapidly corrode this $40,000 machine into uselessness and which is extremely hazardous to the health of people nearby." That sounds like its in shouting distance of the Epilog guy's warning.
Polycarbonate doesn't have any chlorine at all in its chemical formula. Maybe the usual types of Lexan contain plasticizers/flame retardants/other additives that contain chlorine?
Which is exactly why I ended with "You would need some detailed knowledge of the exact material and laser cutter, and thus some expertise."; cutting any kind of polycarbonate sounds like a bad idea if you don't know exactly what you're doing.
Note: That page does say in the second paragraph: "It is not always obvious which materials will work - for example: Polycarbonate/Lexan produces flames and lethal chlorine gas which will rapidly corrode this $40,000 machine into uselessness and which is extremely hazardous to the health of people nearby." That sounds like its in shouting distance of the Epilog guy's warning.