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- From: miked@syscon.rn.com (Mike DeMetz)
- Newsgroups: sci.electronics
- Subject: Re: PC masks from a laser printer??
- Message-ID: <1992Jul27.152412.9024@syscon.rn.com>
- Date: 27 Jul 92 15:24:12 GMT
- References: <1992Jul27.065039.5734@lugb.latrobe.edu.au>
- Organization: Syscon Corporate Headquarters - South Bend, IN USA
- Lines: 17
-
- MATGBB@LURE.LATROBE.EDU.AU (BYRNES,Graham) writes:
-
- >Dear Knowledgeable ones,
- >Up until now I have made my PCB's using donut and tape transfers on
- >overhead proj film, exposing Electrolube +ve resist on the copper.
- >However, as I have now entered the compuer age and bought a cheapy
- >PCB CAD program, I need to produce masks from a laser printer.
- >I tried the obvious (direct print on transparency), but the result
- >was sufficiently porous that the copper looked like a 1/2 tone printers plate
- >after etching. What should I do? I'm going to try inking over the printed
- >bits on the mask, but that doesn't leave me a long way in front of the
- >stick on donut method.
- >Thanks,
- >Graham B
- Sounds like you do not have a good copier. I have used this method on
- Xerox transparency film and exposed it. You can also make a mirror
- image on the film and iron it on to the PCBD.
-