PCB layout programs are really intended for professional use. When designing a really high speed board, the big concerns are cross talk, parasitic capacitance and induction, signal propagation speed, and retention of the signal waveform. All these things are affected more by the spacing of the traces rather than their size.
For my hobby I don't have to worry about all that stuff. I have a copy of Electronics Workbench and I tried Eagle and a couple others. I finally concluded that for my purposes it was easier to just use a plain old CAD system that allows me to specify the width of the lines and hand route everything. It's worked just fine so far.
----- Original Message -----
From: daveismissing
To: Homebrew_PCBs@yahoogroups.com
Sent: Friday, October 08, 2004 1:33 PM
Subject: [Homebrew_PCBs] programmers pay attention
Why isn't all this software done the other way 'round?
I really just want to define how much space I want between traces.
I want all the rest to be trace.
Less etchant, no erosion issues, easier for TT etc....
crazy?
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