Homebrew PCBs

<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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