An additional great point regarding the D1 Pro is its upgradeability. In particular, it’s on the list of couple hobbyist laser engravers with an infrared laser add-on. Infrared lasers tend to be more effective than diode lasers, notably for metal engraving, that makes them the go-to option for jewellery engravers.  https://lorenzoohzpe.ttblogs.com/6061314/the-2-minute-rule-for-aluminum-welder