kicad-developers team mailing list archive

[Jon Evans <jon@xxxxxxxxxxxxx>]

Hi JP,

This is a nice feature and it seems to work well!
I did have to make one change in gerber_jobfile_writer.cpp:154 to get it to
compile on MacOS / LLVM: adding c_str()

fputs( header[ii].c_str(), jobFile );

Best,
Jon

On Wed, Aug 30, 2017 at 11:26 AM, jp charras <jp.charras@xxxxxxxxxx> wrote:

> Le 30/08/2017 à 13:40, Marcos Chaparro a écrit :
> > For simple jobs I tell the manufacturer layer count and pcb thickness,
> both parameters are available
> > in design rules->layers setup
>
> Sure, for simple jobs, this is enough.
>
> But in more tricky cases ( impedance controlled boards, or boards using
> large tracks for high
> currents ), you need to add a lot more info.
> For instance:
> - Dielectric thickness for each layer (and sometimes dielectric constant
> and thickness tolerance for
> impedance controlled ).
>   It is not always the (pcb thickness) / (number of layers-1)
> - Copper layers thickness (not necessary the same for all layers).
> - Where are the core and prepeg layers.
> - Color of solder masks and/or silk screen
> - The finishing of external copper layers
> and certainly more...
>
> Of course, you can send this info to the manufacturer in a text file
> written by hand, but
> a board layers stack editor and the associated Gerber job file are a
> convenient way to manage these
> cases.
> Moreover, a board layers stack editor could help to manage blind/buried
> vias constraints.
> (Currently there is no constraint for blind/buried vias, but many
> manufacturers have constraints)
>
> > Silkscreen and soldermask colors are somehow stored for 3Dviewer, maybe
> they are not stored in a
> > usable way.
>
> Not usable, because it does not live in the .kicad_pcb file but in your
> user preferences.
>
> >
> > Cheers
> >
> > Marcos>
> > On Wed, Aug 30, 2017 at 8:16 AM, jp charras <jp.charras@xxxxxxxxxx
> <mailto:jp.charras@xxxxxxxxxx>>
> > wrote:
> >
> >     Hi all,
> >
> >     I just committed a basic support for Gerber job file.
> >
> >     The purpose of a Gerber job file is to handle info needed for board
> manufacturing.
> >
> >     Because (unfortunately) Pcbnew has not actual support of the board
> layers stack, info about layer
> >     stack, dielectric and copper thickness, silkscreen color, finishing
> external copper layers... is not
> >     output in the job file.
> >
> >     However, this job file contains (among a few other useful
> parameters) the list of Gerber plot files
> >     created by the plot dialog, and loading this file by Gerbview loads
> also all Gerber files created by
> >     this plot dialog.
> >
> >     Please, try it.
> >
> >     --
> >     Jean-Pierre CHARRAS
> >
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>
> --
> Jean-Pierre CHARRAS
>
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