DIY 30 Watt laser

Huh, here’s a homemade 30 watt laser, not too many details but the Australian maker seems to be answering questions in the comments of the video, baccus61 writes-

My 30 watt ULS powered Laser table with 54x30x9 dimensions. Still a few things to add like a rotary attachment and a martensitic stainless steel top.