Dan, The xy file has been used for programming a pick and place machine. The vendor never complained to me if they had an issue and I too have assumed that it is written to the letter of perfection. Next time I will ask for explicit feed back from the programmer.
Steve Meier On Mon, 2007-12-03 at 16:51 -0500, Dan McMahill wrote: > John Griessen wrote: > > Stefan Salewski wrote: > >> Hello, > >> > >> til now I only did hand soldering of prototypes. > >> > >> But I am curious, can gEDA (pcb) data be used for automatic placement > >> and soldering of boards? (This may be a stupid question, but currently I > >> do not know which data board manufactures use for placement of devices.) > > > > The footprint origin is available and can be gotten somehow -- I have not > > done it yet. > > You will need to make your footprints compatible with the process; probably > > all > > with origin at pads centroid, or if you know there is an optimum grab > > point on top of the package that is not at footprint centroid, make sure > > that package > > has its origin there. > > The .xy file that pcb produces outputs the center as being the centroid > of the part and has an algorithm described in the manual for finding > rotation. The actual footprint origin is not used for the purposes of > creating this file. > > I have received exactly zero feedback as to if anyone has been able to > use that file in the 3 1/2 years since that capability was added to pcb. > I can only assume it is the picture of perfection by which all other > xy files should be measured to. Either that or no one has use it. > > -Dan > > > _______________________________________________ > geda-user mailing list > [email protected] > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
