AtomStack A20 Max Large Size Eye Protection Laser Engraver With F60 Air AssistAtomStack A20 Max Description: Larger creative space: After feedback from countless users, the engraving area of 400*400 is difficult to meet the users creation and design, so we grandly launched AtomStack A20 Max, which can have a maximum working area of 850*400mm without extension rods, to meet 99% of laser engraving machine usage scenarios. More stable structure: Different from extending the Y axis (left and right sides), AtomStack A20 Max adopts a