Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "mihai_hagianu" <mihai_hagianu@y...> wrote:
> 
> 
> 
> Hi,
> 
> i've read some time ago an article about o guy using a matrix printer
> to puncture some sort of foil in order to use it as a masking stencil
> for making soldermasks on pcb. I tryed to find that page again, with
> no result. Does anyone knows about this ? I'm starting to experiment
> with this... but i'd like to have something to start from...
> 
> thanx,
> Mihai
There was an early dot matrix technology that used carbon coated
paper coated with metal. They used an arc to vaporize the metal
exposing black print on silver surface.
I think it might be difficult to actually punch thru metal without
leaving some metal sticking out the back.
mike