Hello javaguy11111,
Friday, January 21, 2005, 3:27:32 AM, you wrote:
j> I am trying to get more information on using photographic techniques
j> for making PCB's. For me I am at the limit of what I can really do
j> with toner transfer and my 1200dpi printer. I am trying to find
j> information about printing to transparency and then using some kind of
j> image reduction.
>>From what I can tell it looks like I would use a photographic
j> enlarger. I saw a few hints searching google that this could be used
j> for image reduction, but no real solid information.
j> Does anyone have suggestions on where I could look for more
j> information on this technique.
Why bother with photo reduction? Laser printers are, sometimes, quite inacurate lengthwise. If you can, print your artwork through an postscript printer driver to file and take that to the printh shop with typeseting (photo plotter) machine to produce a perfect film, since you are going to use the photo sensitized copper clad.
Bear in mind that the solder side of your artwork should not be mirrired, and if you are trying to produce doublesided board, component side must be mirrored.
All boards that I'm making myself are produced this way from 35x45 mm to 160x100 mm.
--
Sincerely,
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