Though I confess to only trying the sponge-etching process once, it was very
labor intensive and I had miserable results with it.
It took about 15-20 minutes of manually scrubbing the board, and still made
a considerable mess.
Also, though it worked well with my toner transfer pattern, it scrubbed all
my resist-ink corrections off the board, even the really dark traces.
I expect my method can be improved upon, but I found that using even a
simple etching tank was much quicker, even including all of the setup and
putting away.
-Andrew
On Wed, Jun 2, 2010 at 2:33 AM, Richard <richard.liberatoscioli@...>wrote:
>
> See if this is a better solution for you:
>
> http://www.pulsarprofx.com/pcbfx/main_site/pages/tech_support/no_etching_tank/no_etching_tank.html
>
>
>
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