Avoid Atomstack. Really.
bought Atomstack X40 Max. Worked fine for few weeks, then dead, they send new power switch, but I managed to fix it before arival by self help and now - after few months - it is dead again. Another issue I immediatelly noticed was weird behaviour, when Lightburn says some job will take 6:30, but in reality it last 7:48. Noticed that traveling speed between cuts in some combinations of x and y movement is executed really slow. I took a video and sent to their helpdesk and answer was "it is only estimation which can not be taken too seriously, and the movement is evaluated by our technicians as standard." All my other laser are working exactly as estimated in Lightburn. So, while your machine is working, you are fine, but when it stops and you need real customer support, you will not get absolutely ANY.