kicad-developers team mailing list archive
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Re: New feature: support for Gerber job file.
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 );
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>>
> 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
> 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