Homebrew PCBs

On Wed, 7 Sep 2011, Bob Butcher wrote:

> That is an interesting thought. I happen to have an old Hermes engraving 
> pantograph with a diamond tip. I could print the PCB out 2:1 and trace 
> the spaces between lines to scratch the copper through to the substrate, 
> which would isolate all the copper that I want to keep. As an 
> alternative I could spray paint the copper and scratch off the paint 
> where I want to remove the copper, followed by etching the copper in the 
> scratches. I have used this technique before, but used an exacto knife 
> or carbide scribe to hand scratch the paint off instead of a pantograph. 
> I will have to try it and see what happens. It should work for fairly 
> small boards in any case.

I don't think I would have the patience to make PCBs that way.


-- 
David Griffith
dgriffi@...

A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?