The machines use the same mechanics as traditional laser cutters. This means that they also use an amplified laser beam for cutting. Both CO2 and state of the art fibre lasers are available, so the use of gases depends on the exact method. Fractory’s manufacturing partners also have both options available.
It is important to keep in mind that some reflective materials are preferably cut using a fibre laser. Aluminium and stainless steel both require extra attention while mild steel achieves excellent quality also with CO2 cutting.