Homebrew PCBs

See, i told you so ;-)

You can probably tune down the preparation a little. What i do is rub
the surface with 1000 grit sandpaper or one of those plastic abrasive
pads sold for plumbing work. Just enough so that the surface is
scratched. Then i put a paper towel on it (actually, something else
that comes on rolls...), apply a few drops of acetone, and wipe.
Alcohol should work too but i need the acetone anyway to remove the
toner remains that didn't come off with scraping.

Of course it's good to go over the top if something doesn't work, to
eliminate problems, but once it works you shouldn't need more than a
few seconds to prepare a small board.

ST

On Mon, Dec 22, 2008 at 7:30 AM, jerrytr2.com <jerry@...> wrote:
> --- In Homebrew_PCBs@yahoogroups.com, "jerrytr2.com" <jerry@...> wrote:
>>    I have a board soaking right now.  This time, I sanded it with 600
>> grit, cleaned it off with lacquer thinner and paper towels, then with
>> denatured alcohol and cotton balls. We'll see how it turns out.
>
> *** Just got back from the kitchen sink.  The board is GORGEOUS.  I
> flushed it with cold water, then gave it a 15 minute soak in  warm
> soapy water.  The paper mostly peeled off in one piece, except for a
> thin layer, that I carefully rubbed off with my fingers.  The traces
> came out flawless, the edges perfect.  The only damage to the toner was
> a bit of one of my initials rubbed off - but that's a seriousoy thin
> "trace" :).
>
>   This is a simple analog/power regulator board with fat traces, wide
> spacing and lots of ground plane.  The only thing at all challenging
> was a single 16-pin DIP.  And I didn't even have to shoot traces
> between any of the pins.  Keeping it Simple to start....
>
>                        - Jerry Kaidor
>
>
>