--- In
Homebrew_PCBs@yahoogroups.com, "Phil" <phil1960us@y...> wrote:
>
> --- In Homebrew_PCBs@yahoogroups.com, "Thomas" <teecee@c...> wrote:
> > sounds good, or have I missed something here ...
> > what about the unconnected copper area's of the board ?
> > I am thinking that the unconnected copper would need a Jumper wire
> as such to complete the circuit so as to be etched
> >
>
> They are connected until (almost) all the exposed copper is
removed.
> I would guess that some of the inside areas would not etch
completely.
> He mentions a final etch with traditional etchants. Clearly, a
> little FeCl, CuCl or AP would go a very long way.
>
> The need to have 2 etching set ups outweighs the benefits for me but
> it is kind of cool.
>
> Phil
Yes, This is Correct.
I realize for Commerical Production this is Probably Not Practical,
But for Hobbiests, It can save a lot of Dollars and just adds an
extra step.
Specific Questions will be answered if you email me through my
website. Sometimes I don't get into Yahoo Groups very often.
Towards the end of the Electro-Etching it is Important to remove it
Soon, Rather than Later or you will get Undercutting.
I Recommend a Glass or clear plastic container, with a light behind
the board, making it is Easy to see the etching progress. When Light
Appears to show through the board, remove it and finish it in the
FeCl.
Try it and Have Fun...........Gary