A simple machined stick or angle-iron could be used as being a tool to assist qualified technologists regulate the engraver to attain the expected focusing. This setup is favored for surfaces which tend not to differ in height appreciably. When there is only an incredibly skinny coating of oil within http://milorqwy514.raidersfanteamshop.com/what-you-can-learn-from-bill-gates-about-laser-marking-machine-for-sale