Homebrew PCBs

After thinking about it, I think I should clarify what I mean by
limits. I do not mean limits of my patience. I have gotten great
results with the toner transfer technique. I have been able to get to
.4mm pin spacing. However that was a very tough board to get right
with toner transfer. I am looking for even better quality. Also my
interests lie in trying to get to dimensions even smaller than what
would normally be required for making most circuit boards. PCB's
traces would be the large end of the spectrum.

I was just hoping that maybe someone in this group had done boards by
this method and might be able to offer some pointers.

--- In Homebrew_PCBs@yahoogroups.com, "Leon Heller" <leon.heller@d...>
wrote:
> ----- Original Message ----- 
> From: "javaguy11111" <javaguy11111@y...>
> To: <Homebrew_PCBs@yahoogroups.com>
> Sent: Friday, January 21, 2005 2:27 AM
> Subject: [Homebrew_PCBs] Photographic techniques
> 
> 
> >
> >
> > I am trying to get more information on using photographic
techniques
> > for making PCB's. For me I am at the limit of what I can really do
> > with toner transfer and my 1200dpi printer. I am trying to find
> > information about printing to transparency and then using some
kind of
> > image reduction.
> > From what I can tell it looks like I would use a photographic
> > enlarger. I saw a few hints searching google that this could be
used
> > for image reduction, but no real solid information.
> > Does anyone have suggestions on where I could look for more
> > information on this technique.
> 
> Try printing onto tracing paper; that's what I do and it works very
well. 
> You can buy special film that gives better results (LaserStar from
Mega 
> Electronics) but it's expensive.
> 
> Leon 
> 
> 
> 
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