Homebrew PCBs

On Tue, 16 Nov 2004 08:40:04 GMT, Philip Pemberton <philpem@...>  
wrote:

>
> Same here - I used to use a green scouring pad (Scotchbrite?), but I  
> always
> had tracks that wouldn't transfer. I switched to using 600-grit wet/dry  
> paper
> (3M WetOrDry P600) and every single track transferred fine, aside from a  
> few
> gaps where I was a little too rough scrubbing off the paper residue.
> Thankfully the red permanent Staedtler Lumocolour markers are etch  
> resistant.
> Another thing the Staples paper is good for is component overlays - just  
> a
> shame it's so hard to get the gelatine (?) residue off.


And you say that just after i spent 5 bucks on scouring pad !?!
No, i have no problem with either paper or pad, but the pad makes a much  
nicer board finish.

As for removing the gelatine: scouring pad!!! works like a charm.
just rub until the paper residue is off.
I have only tried it on toner-on-epoxy, which adheres much better than on  
copper.
I dunno if it will work on "component legend over copper tracks" too, but  
what works for that for
sure is abrasive kitchen cleaner (the liquid). Takes much more elbow  
grease to polish all the paper off.
If you use the pad it won't become shiny, but the paper coms off quick and  
a short poloish with a paper
towel makes it look like the best component legend you've ever seen.

Read my previous posts for details and pictures.

ST