gEDA-dev: pcb FAQ: how many layers?

Stuart Brorson sdb at cloud9.net
Fri May 4 14:24:10 EDT 2007


On Fri, 4 May 2007, DJ Delorie wrote:
>> * pcb is limited to exactly 8 copper layers and 2 silkscreen layers ?
>
> False.  The current *default* is to allow up to 16 copper layers,
> defaulting to 8, but you can recompile with pretty much any number of
> layers you need.
>
> If this question keeps coming up, I'm changing the default to 9 ;-)

Well, why not bump the default to 16?  This question seems to
come up often enough.  And telling users to recompile with 
#define MAX_LAYER_COUNT 16 make make sense from the perspective of a
kernal hacker, but isn't good from a "marketing" perspective.

>> * pcb has no way to make a "mechanical layer" to show the physical
>> outline of the board and its dimensions ?
>
> Name the layer "outline" and PCB treats it like a board outline.

Any reason why this doesn't come up as one of the default layers?
Heck, this change is simple enough that even I could do it!  If I
submit a patch, will you apply it?    :-)

Stuart


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