A home made Laser Metal Sheet cutter

And now, a Home Made Laser Cutter!
Yes, an Instructable tells how to do you just that, and it has a bunch of adicional .Pdf Documents for you to download, you have to build a special Power supply,

A Laser controller,

All a lot of Gizmo Fun!
So go there, and build your own Laser Cutter, so you can cut your own CNC Sheet Metal work, like this: