DJ Delorie wrote:
>
> I'm pondering a minor change in pcb's defaults to give us a more
> useful default stackup. How's this?
>
> LAYERNAME (1, "top"),
> LAYERNAME (2, "ground"),
> LAYERNAME (3, "signal2"),
> LAYERNAME (4, "signal3"),
> LAYERNAME (5, "power"),
> LAYERNAME (6, "bottom"),
> LAYERNAME (7, "outline"),
> LAYERNAME (8, "spare"),
>
> This encompasses a few changes:
>
> 1. Default to six-layer stackup. You can ignore the signalN or
> power/ground layers for smaller boards. This covers nearly all PCB
> users (2/4/6 layers), and the rest can edit the stackup as usual.
Make the default layer stack depend on options:
--2layer
--4layer
--6layer
> 2. Always include an "outline" layer. Handling an empty outline layer
> will need to be tweaked.
Very good.
> 3. Rename outer layers to top/bottom, which seems to be what other
> packages (specifically, eagle and kicad) use. Component/solder
> isn't as obvious with SMT. We've used front/back elsewhere before,
> too, but that seems to be even less common.
yes, please! Top/bottom is the preferred naming schema at my place
and of my favorite fab.
> 4. Make the default layers in the right order to reflect a physical
> stackup.
nice.
> Note that this would be an interim change until we get around to
> either a new-board-wizard or new-means-load-template.
IMHO, pcb already sort of behaves like that -- If I start pcb from
scratch, I get an empty layout with the stack like it is defined in
.pcb/preferences
> So, geda/pcb users - would such a layout be a better default for you?
> Or worse? Or would something else make more sense?
I like to have a comment layer just below the outline layer. In
this layer I put internal notes.
---<)kaimartin(>---
--
Kai-Martin Knaak
Email: k...@familieknaak.de
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