Homebrew PCBs

Markus,
It's looking good.
Did you measure the thickness of the board before you started plating ?
How much extra copper do you now have to etch away when you make the
traces ?
I expect you will have a longer etching time...

How are you sensitizing the boards ?

Hans W


Markus Zingg wrote:

>  Hi folks!
>
> I'm a happy man! See the pictures of the first sucessfully through
> hole plated PCB on the page!
>
> http://www.myhome.ch/mzingg/pcbstuff/tps/
>
> Click on "updates to the station", then scroll to the bottom.
>
> Note! The "black" areas are not at all black. These are just
> reflections of the light in my office. It's VERY hard to make a good
> picture of such a shiny object like a freshly through plated PCB! The
> scratches you see on one side are also not related to the through hole
>
> process. They were in the print before the process. (That is I made
> them after drilling the holes to get rid of the material that was
> arond the borders of the holes).
>
> The success came by adding two power diodes in series to the cathode
> line thereby rasing the voltage by ~3V. This has something to do with
> the triac dimmer I'm using. As a consequence I will - insted of using
> a ready built one - build my own. I intend to make the station as easy
>
> to copy as possible. I now start to document the station so as those
> intrested in building their own don't have to go through such a lot of
>
> difficulties as I had. That said I will add two new sections to the
> menue. First one will be "Chemistry" where I will list in detail what
> I know about the chemistry I use. The second section will be
> instructions, picutres, dimensions, bill of material etc. so as one
> can build his own station.
>
> Markus
>
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