Homebrew PCBs

I get the same response, using Firefox. Here is a screen shot of the error message. http://rotordesign.com/delorie.jpg

But I get a very large pcb pic using IE 7.0.

That is one heck of a nice board!

Mike



--- In Homebrew_PCBs@yahoogroups.com, Malcolm Parker-Lisberg <mparkerlisberg@...> wrote:
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> The link below just gives a warning "please do not hotlink to this site"
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> 
> --- On Wed, 8/5/09, DJ Delorie <dj@...> wrote:
> 
> From: DJ Delorie <dj@...>
> Subject: Re: [Homebrew_PCBs] Need better reliability than I am getting with toner transfer - what's next?
> To: Homebrew_PCBs@yahoogroups.com
> Date: Wednesday, August 5, 2009, 12:53 AM
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> "lcdpublishing" <lcdpublishing@ yahoo.com> writes:
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> > I have tried using that dry-film etch resist that you buy on a roll,
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> > apply it to the board with a laminator and have had mixed results.
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> If you mean photofilm, it took me a while to get reliable results from
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> it.  Some thoughts...
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> It wants around 220-240 F temperature, far cooler than most
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> laminators.  I added the temp control to mine just for this purpose.
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> I cut the film a few inches longer than needed so I can hold it up and
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> pulled away from the board during lamination, letting the rollers be
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> the first to press them together.  Far fewer air bubbles this way.
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> Adam's wet lamination gets the same results, for mostly the same
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> reasons, using a wet squeegie.
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> I have to bloat all my prints by 2 mils per edge (think "bigger
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> copper") to get the resulting sizes I want.
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> Don't forget the 15 minute wait between exposure and peeling the
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> backing film off!
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> I ended up writing my own software to do the prints for this.  Using
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> either Silkjet or Jetstar films, I can put down a 100% ink coating at
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> 2880 DPI, which is good for 8 or so steps on a 21 step transmission
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> wedge.
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> Very important to get the exposure right!  I use a step transmission
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> wedge (step gauge) to make sure I'm giving it the right amount of
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> exposure time.  To little and you risk breaks; too much and you risk
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> shorts.
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> I did a 6/6 board recently that had a grand total of one gap, due to
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> one air bubble I didn't catch (the gap is just left of dead center):
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> http://www.delorie. com/electronics/ sdram/sdram- toppcb.jpg
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