Re: gEDA-user: PCB lib.

[Chad Robinson <crj@lucubration.com>]

Stephen Meier wrote:
> There is a document. I have a copy. But it is copyrighted and sold at 
> http://www.ipc.org/ for $150.00
>
>
> IPC-SM-782A "Surface Mount Design and Land Pattern Standard"
How many elements does it describe? Is it a general standard that describes 
land patterns for N-size components (e.g. for a 0.8 pitch quad, this is what 
it should look like regardless of pin count) or does it describe every 
component in detail?

Frankly, I'm not sure it's worth the effort. What does everybody else do 
regularly? Personally I spend a lot of time dealing with custom components, 
like Hirose PCB connectors, special crystal/resonator packages, etc. In 
Circuitmaker I have a library of dozens of these things that I've put together 
over the years, that I'd be happy to contribute. What I CAN'T stomach is 
making the footprints that I haven't had to make, like the TO-263. Am I just 
not looking in the right spot?

Regards,
Chad