Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!think.com!eplunix!raoul
From: raoul@eplunix.UUCP (Nico Garcia)
Newsgroups: sci.electronics
Subject: Re: Are PC Boards really this "easy" to make?
Message-ID: <998@eplunix.UUCP>
Date: 8 Jan 91 19:55:54 GMT
References: <567@dtg.nsc.com>
Distribution: usa
Organization: Eaton-Peabody Lab, Boston, MA
Lines: 28

In article <567@dtg.nsc.com>, green@dtg.nsc.com (green) writes:
> I noticed an advertisement in one of the local electronic equipment magazines
> describing an "easy" way to create PC Boards using an "TEC 200 FILM"
> process.  According to the instructions, you run this stuff through a 
> photocopier, take the result and iron it on copper board. This results
> in a photomask ready for the copper etch.  Sounds great to me! 

Photomask, no. Etch resist, yes. This technique actually works quite well,
but be prepared to screw up several boards getting your technique down.
10 mil is out of the question, unless you go over your artwork with a
permanent 10 mil marker after ironing. I've been using 20 and 40 mil
with good results. For large areas, like ground planes, be prepared
to paint over them with a good etch resist: large black areas just don't
work well on photocopiers.

The name of the company is Meadowlake Corp.: their number is (516)757-3385,
and 10 sheets will cost about $10 including shipping. They include
instructions on how to use it, and there was an article in Popular
Electronics last year. I use this with Macdraw to draw both sides of my
boards, print it out on paper, then Xerox onto the transparency.

Also make sure that you have the orientation of your artwork correct:
it gets reversed from your paper copy onto the PC board.

-- 
			Nico Garcia
			Designs by Geniuses for use by Idiots
			eplunix!cirl!raoul@eddie.mit.edu