[sdiy] 45 vs. 90 degree pcb traces

MTG grant at musictechnologiesgroup.com
Sat Feb 15 01:10:10 CET 2020


Here is a guy that makes (new) SBCs for all the old vintage 8-bitters. 
On most of his boards he uses a ton of 90deg traces.  I think it's his 
style.

https://vintagechips.wordpress.com/



On 2/14/2020 3:47 PM, Phillip Harbison wrote:
> Here's an example of routing a bus with 4 signals. It gets much
> worse with larger buses. If you're trying to weave a 16-bit bus
> between the pads for RAM chips, the extra space for 90° angles
> is almost prohibitive.
>
> Regarding red/blue, I've only watched one layout guy at work.
> He did red/blue with colored pencils on ordinary graph paper.
> This was to plan the layout. Afterwords he created the layout
> on semi-transparent (cloudy) mylar using black tape. He had a
> variety of tape in various widths. This was early in my career
> (maybe 1980-1983). ECAD was already taking over by 1983.
>
>
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