How do I make a fiber laser marking machine at home?

The assembly video of fiber laser marking machine: 0:00 Preparation 0:45 Disassemble the cabinet 1:10 Install the control board 1:33 Install the power supplies 2:08 Install the small components 3:18 Install the socket panel 4:12 Do wiring 5:06 Install the laser source 7:00 Assemble the pillar and the laser path parts 7:52 Install the galvo head 9:38 Build the laser path 11:05 Organize cables and wires 12:39 Install the casing of the machine 13:07 Install the external red laser Indicator