As the opening deepens and the material boils, vapor generated erodes the molten walls blowing ejection out and more enlarging the hole. Nonmelting elements such as wood, carbon, and thermoset plastics are usually Slice by this method. A laser cutter is often a variety of CNC (Pc Numerical Controlled) machine, https://juliusshuhv.blazingblog.com/37463451/helping-the-others-realize-the-advantages-of-automated-cnc-systems