<snip>
Simon:
You did good on the wife. I too did good. When we married in
1954 I was in the Air Force and did not have any thing, we were on a
tight budget, and I wanted more test equipment. In 1956 I was in collage
and when we came home for Christmas she had somehow bought me
a Hesthlkit scope and had it shipped to her Dad's house and she has
been that way ever since. Some time God smiles on you.
Derward Myrick PE KD5WWI
--- In Homebrew_PCBs@yahoogroups.com, Donald H Locker <dhlocker@...> wrote:
>
> Your bookkeeper is pretty easy if you can get a $1.5k hobby purchase past her :)
She's a keen football/baseball fan too. I chose well ;)
Cheers
Simon.
> Donald.
> --
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> ----- Original Message -----
>
> > From: "spacedcowboy@..." <simon.gornall@...>
> > To: "Homebrew PCBs" <Homebrew_PCBs@yahoogroups.com>
> > Sent: Thursday, October 14, 2010 6:39:16 PM
> > Subject: [Homebrew_PCBs] Change of plan
> >
> > So, LPKF will sell their chemistry separately (they just sent me a
> > price-list) and they too have a 3-stage plus plating-stage process
> > using black-hole techniques. So the new plan is to get the machine
> > from China, and use the chemistry from LPKF.
> >
> > The manual for the Mini-Contac-RS goes into quite some detail about
> > how long to spend in each bath, what temperatures, the perils of using
> > impure water for washing etc. It actually seems a fairly
> > straightforward process though, and they offer used-chemistry-handling
> > as well. So that seems to sort out the chemical side of things
> >
> > As far as the hardware, from what I can tell it's basically a
> > pre-built version of Markus Zingg's homebrew station
> > (http://www.0x0000ff.com/tps/) - I doubt it uses the
> > reverse-polarity-plating technique that LPKF boast about, but it's
> > probably good enough for me assuming I don't try and push the limits
> > of aspect ratio...
> >
> > As far as I know (I only got the consumables pricelist), a
> > Mini-Contac-RS is about $10k. The chinese version (admittedly less
> > capable) is circa $1.5k. The former I have no chance of getting past
> > my wife - the latter is vaguely possible :)
> >
> > Simon.
.
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