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Re: [Homebrew_PCBs] Re: THRU HOLE PLATEING

2008-12-21 by Markus Zingg

I haven't used glass ever, but provided you manage to make the glass 
conductive, copper will deposite. It's likely that you can do this with 
the palladium bath, it's another question though wether the copper will 
stick to the glass or just fall off.

In terms of copper, I think using a foil with a glue is the way I think 
where your chances of sucess are the best. You then still could use 
through plating to plate the holes. Especially this makes kind of sense 
to me cause it also would help to make the copper stick to the glass. 
Wether the glue would react with the chemistry is yet another question 
though....

I think this is something you either find someone with the needed 
experience or else you are left with experimenting. As always in such 
cases, you don't know at the beginning if it's going to be very 
difficult or if you find a working solution quickly.

I don't think it's a good idea to start with 5 liter tanks unless you 
really need this size because of the size of the PCBs. For chemistry 
cost reasons but also handling and storeing space etc, I ended up 
makeing all containers on my own cause only this way I could make them 
as small as possible. The benefit of this is that you get away with a 
minimum of the chemistry and a setup that you can handle easily and 
safely. Remember, the baths HAVE to be replished and especially in case 
of the palladium one replaced. The bigger the bath, the more you pay 
every time it happens.

As for more information, schematics, measures, materials etc.etc. - I 
beg you to wait for the pages to be finished cause otherwise I end up 
documenting everything multiple times.

HTH

Markus

trevwhite74 schrieb:
>
> Glad you are setting up a page. You really deserve a lot of credit for
> this. My offer really was to help with your documentation. After all
> it is all your work.
>
> I am really interested in the process and really fancy trying it out.
> I also think it is great that you have shared all the information with
> others.
>
> I have actually found some plastic containers at the local
> supermarket. They are 5L capacity and fit a board up to size
> 200mmx270mm which is more than enough. They have sealable lids to
> them. I think this will really help with keeping the chemistry. What
> is most amazing is that they cost just \ufffd2 each.
>
> I need to read up again about the electrical side of your process.
> That sounds like it needs a bit of work to build. Do you have any more
> information available at present regarding that side of things?
> Schematics, etc?
>
> Another thing that I have been looking at is using glass. I do not
> know how well this will work out but do you think it is possible to
> adapt this system to plate glass?
>
> Trev
>
>

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