As the opening deepens and the material boils, vapor created erodes the molten walls blowing ejection out and additional enlarging the opening. Nonmelting elements which include wood, carbon, and thermoset plastics tend to be cut by this process. Used CNC laser machining tools can be used with lots of supplies. https://elliotoqqrr.imblogs.net/85157160/5-simple-statements-about-prototype-cnc-mills-explained