Homebrew PCBs

This is what i was thinking too.

In a vertical tank the bar could be a steel rod in a piece of
insulation, moved by magnets through the glass. Think windscreen
wiper.

On Tue, Apr 29, 2008 at 12:03 AM, Brian Goralczyk <bdg0584@...> wrote:
> I believe I can explain it.  The agitation of the etchant would spead up the process, however what is actually causing the agitation is the edges of the board being moved through it.  By the time the energy gets to the middle of the board it has dispersed.  It would seem to me, that maybe what would work better is a bar that would move back and forth through the etchant right below the surface of the board.  But that is just speculation, and I believe you would want to minimize the verticle movement of the agitating platform.
> Maybe you could place to rails above the etchant that the agitator bar would be connected to and move along.  I see a rather simple setup in my head.
>
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> Brian Goralczyk
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