James,
There's lots of info on Eagles support list. You can find it on their
website.
I've only done a few double sided boards with Eagle, but if you're
going to attempt it, you'll probably want to use the tRestrict and
vRestrict layers. Basically, you draw polygons in those layers, and
the router will not try to route the traces in the areas you specify.
I usually use tRestrict over IC's because I don't want to deal with
trying to solder both sides of the board there, or deal with vias
underneath the IC's.
A lot of double sided boards can really be single sided boards with a
few jumpers, and the restrict layers help make that possible.
Kevin
--- In Homebrew_PCBs@yahoogroups.com, "crankorgan" <john@k...> wrote:
>
> Two side is done using two register pins. The problem is you will
> have to add jumpers to make connections from one side of the board
to
> the other. With a little thought you can make most boards single
> sided. If you let Eagle route your boards you will get double sided
> boards 9 out of 10 times.
>
> --- In Homebrew_PCBs@yahoogroups.com, James Washer <washer@t...>
wrote:
> >
> > Two questions
> >
> > 1) Is it "reasonable" to mill double sided boards?
> > 2) Will Eagle(and scripts) provide code to do the drilling (I'd
> assume so, but I don't like to make assumptions)
> >
> > - jim
> >
> > On Sun, 25 Dec 2005 12:43:28 -0000
> > "crankorgan" <john@k...> wrote:
> >
> > > http://mynock.dhs.org/pcbmilling/
> > >
> > >
> > >
> > >
> > > --- In Homebrew_PCBs@yahoogroups.com, James Washer <washer@t...>
> wrote:
> > > >
> > > > Nice job John.
> > > >
> > > > Can you answer a few questions for me? How does one get from
an
> > > Eagle "brd" to whatever CNC instructions (or whatever they are
called,
> > > I don't know anything about CNC, sorry).
> > > >
> > > > What kind of a mill are you using?
> > > >
> > > > On Sat, 24 Dec 2005 13:17:38 -0000
> > > > "crankorgan" <john@k...> wrote:
> > > >
> > > > > From Eagle to a finished board in less than 1 hour each.
> > > > >
> > > > >
> > > > > Drilled,Sanded and Cut
> > > > >
> > > > > http://crankorgan.com/perfchop7.JPG
> > > > >
> > > > > Parts added
> > > > >
> > > > > http://crankorgan.com/perfchop9.JPG
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > Be sure to visit the group home and check for new Links,
Files,
> > > and Photos:
> > > > > http://groups.yahoo.com/group/Homebrew_PCBs
> > > > >
> > > > > If Files or Photos are running short of space, post them
here:
> > > > > http://groups.yahoo.com/group/Homebrew_PCBs_Archives/
> > > > > Yahoo! Groups Links
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Be sure to visit the group home and check for new Links, Files,
> and Photos:
> > > http://groups.yahoo.com/group/Homebrew_PCBs
> > >
> > > If Files or Photos are running short of space, post them here:
> > > http://groups.yahoo.com/group/Homebrew_PCBs_Archives/
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> >
>