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Subject: Re: [Homebrew_PCBs] Making the simplest board

From: "Earl T. Hackett, Jr." <hacketet@...>
Date: 2004-09-24

I'm getting the same thing. Yahoo did this once before a couple of years ago.
----- Original Message -----
From: x xx
To: Homebrew_PCBs@yahoogroups.com
Sent: Thursday, September 23, 2004 12:35 PM
Subject: Re: [Homebrew_PCBs] Making the simplest board


People: What might be the reason that every posting made on this group since I signed on two weeks ago, hits my puter in triplicate? Is this something the owner should know?

Sam

Stefan Trethan <stefan_trethan@...> wrote:
On Thu, 23 Sep 2004 13:10:24 -0000, upand_at_them
wrote:

> Hi guys,
>
> Are there any tips to getting the simplest board with Eagle (free
> version)? I have a circuit that is fairly simple, very few
> components, but the autorouter in Eagle created something not as
> simple as I had hoped.
>
> I did some maneuvering around of the components last night and it
> looks much cleaner than the first time through, but since this is my
> first board I would really like this one to turn out as a single side
> to be etched.
>
> Also, the two copper boards that came with the Radio Shack etching
> kit are cheap, thin, and warped. What's a good place to get a better
> quality one or two-sided board?
>
> Mike
>
Mike, i'm sorry there is no secret trick to get it routed the best way.
It is a lot of trying, and much more art than anything.
Arrange the components similar to the schematic to start with, and then
move around to resolve most crossing "rubber bands". Leave enough space
between the components to do this. The next step i do is deciding on the
board
shape and moving the parts together again, starting to route the short
signals already.

The autorouter won't do it right, at least for me.
Remember you can use (few!) wire bridges to resolve problems.

Boards: you can buy them at most electronics mail order shops. There is
FR4 (glassfiber)
and phenolic resin (paper). second is easier to drill, first is better
quality.
I buy my boards at ebay in big lots very cheap.





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