kicad-developers team mailing list archive

[Diego Herranz <diegoherranz@xxxxxxxxxxxxxxxx>]

Hi JP,

Is this something new in GerberX2? I had never seen Gerber
jobfiles before...

I've given it a try (export and then load on GerbView) and seems to work
OK, it loads every layer by just loading the jobfile.
Any other gerber viewer which supports it to give it a try? gerbv
<https://sourceforge.net/projects/gerbv> doesn't seem to support it.

Thanks,
Diego



On Wed, Aug 30, 2017 at 5:35 PM, jp charras <jp.charras@xxxxxxxxxx> wrote:

> Le 30/08/2017 à 18:02, Jon Evans a écrit :
> > 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
> >
>
> Thanks.
>
> I committed a fix (use TO_UTF8() instead of c_str() ). It should work on
> all platforms.
>
>
> > On Wed, Aug 30, 2017 at 11:26 AM, jp charras <jp.charras@xxxxxxxxxx
> <mailto: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> <mailto: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
> --
> Jean-Pierre CHARRAS
>
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