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Message

Re: Pins and Pads for external connections

2006-03-19 by kilocycles

Alan,
It's just plain weird the way Eagle leaves detritus behind when you
remove something, or fix a DRC error like not enough clearance between
pads and traces.  I'd like to discover a way to turn on the drill
holes for exporting the image as a .bmp file.  That must be possible,
because some time ago I made a part, and the drill holes always showed
in the pads on the board for that part.  It also had too large a drill
diameter for the pads, so maybe that was Eagle's way of reminding me
of that fact.

Here's some other silliness to avoid: some of the packages used for
HC-49 crystals and other components in some of the libraries have a
crosshatch area surrounding them.  I used to manually edit out those
areas in Photoshop until I discovered they can be turned off!  They
are on one of the layers; near the end of the list, I forget right
now, and I'm downstairs on the laptop, not at the big machine.

If you haven't discovered it yet, there is a "solpad" library.  You
can add connection points on the schematic for off-board components
like power feeds, front-panel pots, etc.  They will show up as pads on
the board, fly-wired to whatever component on the schematic you've
connected them to.  Very useful; I use them as jumper points on
single-sided boards as well.  They can be renamed and re-valued like
any other part on the schematic, such as "J1"  "Audio_Out".

Ted

--- In Homebrew_PCBs@yahoogroups.com, Alan Marconett <KM6VV@...> wrote:
>
> Hi Ted,
> 
> I looked at the provided examples, and got the diameter/drill of the 
> vias on it.  .048 /.032 drill.  seems to work.
> 
> Sounds like GND@1 is working for you.  A little confusing how they are 
> placed/removed.  Hard to get rid of them after you've placed them! 
> Finally did ripup followed by ratsnest and DRC commands.  I get a big X 
> where the via was, and it finally goes away.  But all are fine now
after 
> being replaced.  DRC is good.
> 
> What else should I play with after I pretty it up a bit?
> 
> Alan  KM6VV
---snip---

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