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.char...@wanadoo.fr > <mailto:jp.char...@wanadoo.fr>> > 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 > > _______________________________________________ > Mailing list: https://launchpad.net/~kicad-developers > <https://launchpad.net/%7Ekicad-developers> > Post to : kicad-developers@lists.launchpad.net > <mailto:kicad-developers@lists.launchpad.net> > Unsubscribe : https://launchpad.net/~kicad-developers > <https://launchpad.net/%7Ekicad-developers> > More help : https://help.launchpad.net/ListHelp > <https://help.launchpad.net/ListHelp> > > -- Jean-Pierre CHARRAS _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : kicad-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
