Jan,
Check out the group links section. Markus Zingg has a VERY nice
setup... (Worth re-creating, IMO) Down side is that he uses Bungard
chemicals, which are not cheap to get started with. But for a
dedicated amateur, the prices weren't TOO bad, IMO. Bungard has a USA
rep in the northwest (chems come from Canada) I made a phone call to
get pricing.
Another member is successfully using the blackhole technique. (I
apologise forgetting his name just now; especially as he was very
helpful in several private emails awhile back. Can't look it up as
I'm not on my "normal" computer!)
Anyways, he uses a combination of thinktink and caswell off-the-shelf
products. He's doing small production, and reports good results.
Hope this helps,
Ballendo
--- In Homebrew_PCBs@yahoogroups.com, JanRwl@A... wrote:
> In a message dated 5/20/2004 12:48:12 AM Central Standard Time,
> stefan_trethan@g... writes:
> Not sure what is special about them.<<
> The ones I mean have a "grainy" (sand-like) interior with silicone
grease all
> inside (to keep the Oxygen off the metal, once screwed-TIGHT).
Probably the
> PRICE is special, too!
> I suspect the cable is no pure aluminum<<
> It may have trace impurities, but I doubt ANY effort is made to
alloy it to
> preclude this kind of electrolytic corrosion!
>
> Bet it would be nice if alum. were easily solderable, so PCB's
could be made
> with it instead of copper!
>
> Does anyone in here doing PCB's at home pretty-much strictly as a
hobby do
> PTH? Can this be done PRACTICALLY at home? Then, tin-lead resist
would be
> necessary for trace-etching. How reliably could the conscientious
mature
> home-tinker do tin-lead plating of a PC-pattern, and be SURE the
plating did-good down
> in the holes? Jan Rowland
>
>
> [Non-text portions of this message have been removed]