Has anyone experianced short lens life (particularly when cutting Stainless steel) ? I operate a 4Kw C02 Laser. Whenever i cut .125 SS or thicker. . . . Within 5 parts, my lens is covered in spots, which do not come out of the lens. At this point, the focus is way out, and cut quality is lost.
Anyone else experience this issue?
Got a cure?
Thanks all.