Some thing that gets overlooked often as a general maintenance is cleaning of the lens. A dirty lens can dramatically change the quality or you cuts and engravings. Even worst a dirty lens can turn into a piece of garbage quickly if not checked routinely. It is a quick procedure that I recommend doing at least once a week and with increase operation time you will want to increase your cleaning schedule as well. I recommend using isopropyl alcohol and a microfiber cloth to best care for your optics.
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