Homebrew PCBs

I have sent you a message explaining with very much detail how I make
the boards, If anyone else is interested I'll post it on the list, or hang
it in the files section, or wherever you find it helpful. The DSC laminator
just was a mistake, I had been looking for drivers for my DSC sony camera
and had those letters in mind when I wrote the message. The laminator is
actually a GBC model Docuseal 95P.

    I had the same problems with pressure when I did TT with the iron, You
don't need to apply much pressure, I think the point is in applying even
pressure. What I really know is that with the laminator I don't have those
problems anymore. Actually I have been able to do a little bit lower than
8mil tolerances. The limit I have observed is 3.2 mil wide tracks and 5 mils
clearance, but it has been with about 5 sq.inch. boards, so I thought it
would be difficult to obtain these results in larger boards so I set all the
boards I do to 8-8 mils, which I find is more than fine and can do it
without complications and with good repeatibility. One thing to keep in mind
is to make pads big enough to make drilling and soldering easy, as Stefan
suggested.

    Pedro
  -----Mensaje original-----
  De: joshdewinter [mailto:joshdewinter@...]
  Enviado el: viernes, 09 de enero de 2004 7:14
  Para: Homebrew_PCBs@yahoogroups.com
  Asunto: [Homebrew_PCBs] Time magazine pages and a laminator lead to
awesome results --> Pedro


    I just had another look at the awesome results Pedro was getting
  from his process.  In digging up his messages, he said he used pages
  from Time magazine, and a DSC laminator.  I couldn't believe it!  So
  simple, and yet so effective.  Pedro, I wrote you a mail to your
  Yahoo address if you're reading this asking more about it :).  Does
  anybody else use a laminator, or magazine pages for that matter?  Is
  there something special about Time that makes it better?  I tried it
  with an issue of Design magazine and an iron, and I got okay results
  right from the start.  I keep having a problem though.  When I use
  heavy pressure, I get all the pattern transfered, but I end up
  getting smashed areas, where fine lines and text gets squashed out
  further than intended.  When I use light to moderate pressure, I get
  nice crisp fine lines, but some large areas have holes (little spots
  where the toner doesn't transfer).  Does anybody have any
  suggestions?  The laminator seems like a novel idea.  I searched for
  DSC on EBay, but couldn't find one.  Anybody else use one?

  -Josh



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