From: Keith R. Williams
Subject: Re: What are these terms in PCB design?
Date: Sun, 6 Oct 2002 22:33:57 -0400
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In article <email@example.com>, a?n?g?e?
> On Sun, 6 Oct 2002 11:53:52 -0400, Keith R. Williams
> >> Though I expect some manufacturer somewhere in China probably is mass
> >> producing a similar thing by the time I get this done!
> >Do you have this thingy up on a web site? Sounds interesting.
> >Maybe if it does get ripped off you won't have to make them for
> >all your friends (and theirs). ;-)
> Well, to be honest, we're ripping off Antec who in turn ripped off
> some PC enthusiast somewhere who put lights on his PSU fans. My
> friends can't afford an Antec so... :)
LOL! I guess they've already ripped you off. ...err...
> Besides, whether somebody else makes them or not in the end, my main
> thing is I'm learning stuff from this :)
That works. You do have the tenacity of an under-fed pit-bull.
I've said many times that you'll do well! Your male friends (and
bosses) are underestimating you! ;-)
> And I wish these programs can learn to route the traces themselves
> after I put down the pads. I've spent a couple of days re-arranging
> things on the monitor, using resistors placement to cheat by hopping
> over traces and stuff.
Oh, they indeed can! Auto-routers do indeed exist, but aren't
perfect (the traveling salesman problem) and are expensive. When
I've done such designs I've told the layout people, go fer it on
*these* wires. I want to do the important stuff breathing over
their shoulder, but the rest just has to get from here to there.
OTOH, since you're limiting yourself to one layer, the human
brain will beat 'em all.
For any complexity, the problem likely cannot be solved on one
layer. Think about using components to bridge lands (think of
them as a "second layer"). Even think about useless components
(they may be easier than wires). Zero-ohm resistors exist for a