Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, Curtis Richards <cwrxr@e...> 
wrote:
  My initial runs 
> have burned clean .003 lines in 1 ounce copper glass epoxy board with 
> out burning the substrate at 60 inches per second. 

Curtis,

That is very impressive. I am going to breadboard this on a pcb and try 
it this w/e.

BTW, can I ask what spec of SCR you used?

TIA

Roger