Re: gEDA-user: next PCB release - 1.99za vs 4.0

[DJ Delorie <dj@xxxxxxxxxxx>]

> What's the physical meaning of an eight-layered composite?

A board with eight copper layers, assuming the eight drawing layers
each map to a different physical layer.  Making the structure "flat"
just means that all your drills and outlines apply to all layers
equally.

> So wouldn't a better default be:
> 
> (((12) (34)) ((56) (78)))

No, because that implies blind/buried vias are possible between the
grouped layers, which may not be the case depending on how your fab
builds the boards.


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