What cheap laser engraver would be the best for metal marking? There have lot of laser machine with different laser source, and different model, today we will show u how to purchase right laser engraver for metal marking. First u need to know the laser source of the laser engraver, laser source is the core accessories of the laser machine, also the most expensive parts in the laser engraver, there have co2 rf metal laser source, fiber laser source, UV laser source, Green laser source, MOPA laser source. but for metal marking, u can only choose Fiber laser source and MOPA laser source. MOPA laser mostly use for color marking(red, green,blue,etc) on stainless steel, and black color on aluminium oxide. U can find the different between MOPA and fiber laser marking machine from our website:www.bogongcnc.com For metal marking work, laser engraver with fiber laser source will be good choice, fiber laser engraver with cheap price, and high stable performance, the advantages of fiber laser ma