Re: gEDA-user: gEDA for mass production?

[Dan McMahill <dan@xxxxxxxxxxxx>]

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


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