Homebrew PCBs

From their description, the chemistry looks like it's 100% what I use 
here. However, the price for the chemistry seems a bit steep. It depends 
though on how much of each part needed it includes. One must know that - 
IF TREATED CORRECTLY - the chemistry can be used for multiple years. It 
thus depends on how many board one makes, how complex they have to be etc.

Since my designs almost always require multiple layers I don't have that 
much choice, so for me the 350 GBP would not hinder me if I were in the 
position of haveing this as the only source. I can only repeat that 
getting in touch with a board house is the best one can do. Usually 
there is more than one such house around so if it really should be that 
one is not sucessful at one place it might be at another.

Building a plating line is feasable, and for my use, the one on that 
site would be way too big anyways. It should be noted that the better 
the size of the tanks reflect the requirements board size wise, the 
fewer chemistry one needs to set up and alas such a starter kit for a 
bigger line may easily be used to set up a smaller line 5 times or more. 
I.e. I personally use 2.2l tanks for the first four baths, and a 4.4l 
tank for the effective plating bath. That's mostly due to the space 
requiered for the copper anodes.

HTH

Markus

Leon schrieb:
>
> ----- Original Message -----
> From: "Markus Zingg" <homebrew-pcb@... 
> <mailto:homebrew-pcb%40shdesign.info>>
> To: <Homebrew_PCBs@yahoogroups.com 
> <mailto:Homebrew_PCBs%40yahoogroups.com>>
> Sent: Tuesday, May 27, 2008 7:53 AM
> Subject: Re: [Homebrew_PCBs] Re: Via Through plating
>
> > Apart from Adam, how seems to understand A LOT about chemistry, I'm not
> > aware of anybody who has developped his/her own chemistry which he could
> > SUCESSFULLY use. Alas, don't loose time on this part except chemistry is
> > sort of your hobby.
>
> Mega Electronics sells complete kits:
>
> http://www.megauk.com/through_hole_plating.php 
> <http://www.megauk.com/through_hole_plating.php>
>
> They are too expensive for home use (\ufffd4765 GBP), but they sell the 
> chemicals
> separately - \ufffd350 GBP for a starter kit. The web page describes the 
> process,
> it seems quite straightforward with their chemistry.
>
> Leon
> --
> Leon Heller
> Amateur radio call-sign G1HSM
> Yaesu FT-817ND transceiver
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> <http://www.geocities.com/leon_heller>
>
>