[Abbenay] PCB manufacturing (Was: Wiki wishlist)

[Axel Löfving]

After an hour or so of googling, I've found next to nothing on Ferric
Chloride. I find some sites geared towards schoolteachers that seem to
indicate at least some availability (like here
http://school.chem.umu.se/Compiled/hushall.html ) but other than that, I
mostly find reports on horrible accidents in water purification. Does anyone
know a chemistry teacher? I'd say thats our best plan of action atm. If
anyone else wants to have a go at it, the swedish name is järntriklorid.

-a

2009/12/12 Ove Ridé <nitro2k01 at gmail.com>

> 2009/12/12 Axel Löfving <lofving at interactingarts.org>:
> > hey, good additions!
> >
> > Instructables has a quite good howto video for making Printed
> CircuitBoards:
> > http://www.instructables.com/id/DIY_Printed_circuit_board/
> >
> > I have no idea how to get a hold of most of the ingredients though.
> Here are my thoughts:
>
> *Steel wool
> Easy to get, but make sure you don't get one with soap, like the
> common Svinto brand, since you want to keep the board clean.
>
> *Isopropanol
> Should be pretty easy to get. I imagine a gas station might carry it
> or maybe a tool shop or painter's shop.
>
> *Ferric chloride
> I doubt you can get it easily in small quantities for an affordable
> price. It might be possible to ask a painter's shop to buy some from a
> distributor, or contact a distributor directly.
> It's also worth noting that you need a well ventilated place when
> working with it since it may emit hydrochloric acid when working with
> it.
>
> *Acetone
> Also easy to get and any well assorted Coop/Ica supermarket should
> have it. You should probably avoid the type with oil in it, commonly
> used for removing nail polish. Requires good ventilation as well.
>
> *Liquid tin
> I don't know exactly what liquid tin is or how/where to get it. It's
> obviously a chemical that deposits tin on top of the copper. Might be
> as simple as tin chloride. If so, you could make your own pretty
> easily by dissolving tin in hydrochloric acid to make tin chloride. At
> any rate, this step is not strictly required, especially not if using
> flux when soldering. (Which will increase solderability.)
>
> What was not mentioned in the video is drilling. For drilling you need
> a good drill, preferably a "perlarborr" (don't know what that is
> called in English...)
> This kind of thing:
> http://www.rusta.se/pelarborr_16mm_p31951114.html
>
> It's not impossible to solder hole mount components as surface mount
> but it requires skill, and preferably that you take that into
> consideration when designing the board.
>
> --
> /Ove
>
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