Re: gEDA-user: pick and place ?plugin?footprints.c? for gerbv

[Dave N6NZ <n6nz@xxxxxxxx>]

Steve Meier wrote:
> I am a little confused here. Are we discussing taking a gerber file and
> using it to generate the component location/rotations for a pick and
> place machine?
> 
> If we are wouldn't it be a lot easier to use the pcb file to generate
> the file?

Yes, it would be immensely easier.  Straight-forward and sensible.

We're examining it from the viewpoint of a PCB assembly vendor who gets 
nothing but Gerbers from users of less flexible tools than pcb :)

The "right" place in the tool flow is to generate it directly from PCB 
in a form that is directly usable w/o human intervention.

 From the P&P vendor's viewpoint, that only solves a portion of his problem.

James from LilBro has joined the list and is following the conversation. 
Maybe he would entertain a discount for "no human intervention required" 
design data, and I suspect we could easily pump that out from PCB.  But 
I'm sure he'd be the first to tell you that only solves part of his 
problem.  And he's not the only vendor with the problem.

-dave


> 
> Steve Meier
> 
> John Griessen wrote:
>> Dave N6NZ wrote:
>>   
>>> John Griessen wrote:
>>>
>>>     
>>>> The minimalist hack I am planning is to find the silk
>>>> layer elements that touch each other first, then the intersection of
>>>> the max extents of those with pad centers and call that a group.
>>>> Then get human input to weed the groups and add the missing.
>>>>       
>>> On my SO silk, the sides of the part are inside the pads, not outside. 
>>> Will it recognize those?
>>>     
>> Those will only get recognized by a further improved version, not the first cut version.
>> First cut will use enclosing boxes, then human input.
>>
>> I'm planning on redoing my silk outlines that are compact like that, and
>> make courtyard boxes instead, because robots placing parts is a wonderful thing.
>>
>>
>> John G
>>
>> PS  this hack will have to wait til after I return, 7 March ++.
>>   
> 
> 
> 
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