2D printer-real parts

I am fascinated by Photo Chemical Machining, and the possibility of
doing this at home somehow converting an inkjet.
Start with laminated sheets of almost any metal and then the burn
away the laminate with a 2d printer. Then drop the metal in acid and
you've got parts. Tiny and intricately detailed up to about .050"
thick.
You could make wheels or strips for quadrature encoders ALL day
long. You could also make PCB which I know has been discussed before.
Check it out!

http://www.mansfieldgraphics.com/