looking for info on....

i understand this is old tech and everyone has a better way of doing things nowadays but for my own personal curiosity i'd love to find out as much as i can about these laser table designs...

https://www.youtube.com/watch?v=cauY9dfe5E8&t=21s

as much detail on builds/setups, operation, etc would be greatly appreciated. i'd search more but i'm not even sure exactly what to call these devices in order to search them. lol

thanks in advance, -Fritz