General knowledge about laser here.
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I’m narrowing down the choices for my first laser engraver purchase and there’s one fundamental item I need advice on. There seems to be a huge price difference in machines supplied with glass tubes as opposed to ceramic. Ceramic tubes are in the machines from Epilog, Trotec, Laserpro and Universal. I really like the website and marketing of Full Spectrum Laser whose machines have glass tubes and are way cheaper. Are ceramic tube machines worth the extra expense? If so, why?