[time-nuts] Schematic capture, anyone?

Bob Camp lists at rtty.us
Sun Feb 26 23:03:37 UTC 2012


Verifying Gerbers on a trace by trace basis for a moderately complex multi-layer design could take a very long time. If you can't trust the program to go from the screen to the Gerbers, I'd say - find a new program... A bug like that nullifies any value from schematic checking or DRC.


On Feb 26, 2012, at 5:36 PM, NeonJohn <jgd at neon-john.com> wrote:

> I use professionally.  It was the best that our small company could
> afford.  Here are some tips that will save you mucho grief.
> 1) This is the biggie.  Make your own parts library.  Then put any part
> that you have to create in that library.  As well, put a copy of any
> standard library part in your library AFTER you've verified that the
> part, especially the footprint is valid.  Then put that library under
> SubVersion or whatever version control system you use.
> I call my library 00johh.lbr.  The "00" makes it appear first in the
> library list.
> 2) another biggie.  Validate any part that you take from an Eagle
> library.  They are recklessly careless with those parts.  I've found
> silk screens on the solder side and even individual pins on the wrong
> side.  I lost a board run only once because of this but it was enough to
> make me extremely paranoid.
> 3) LOOK AT YOUR GERBERS!  It takes a pretty long while and it's tedious
> work (I print mine out on an 11X17 printer and check off every feature
> with a highlighter as I go) but it's vital.  Eagle doesn't always
> produce Gerbers like the board appears on the screen.  Especially if you
> get caught by #2 above.
> I use gerbv which is a Linux tool but I think there's a version for the
> mac's almost-unix OS.
> John
> On 02/26/2012 02:12 PM, Jim Hickstein wrote:
>> In case anyone is following my progress, I started with EAGLE.  It works
>> fine on the Mac.  I can tell it's not quite native (it even has a man(1)
>> page!), but it's no problem.  One afternoon with the tutorial, and I
>> have a schematic.
> -- 
> John DeArmond
> Tellico Plains, Occupied TN
> http://www.neon-john.com    <-- email from here
> http://www.johndearmond.com <-- Best damned Blog on the net
> PGP key: wwwkeys.pgp.net: BCB68D77
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