Homebrew PCBs

Hans,
      I have the schematic, I have finished boards that I
have beem milling. I stopped selling controller boards do
to cost. I was hoping to get single sided boards made for
about $15. The boards are 4" X 6" and I used every trick
in the world to get all the parts on the board. The board
only has a few jumpers. When I tried routing programs two
years ago, they would create a two sided board.
      That's when I started milling my boards. In order
to get boards made cheap, I have to do a large run. Thanks
for your help, I will give it another try. I have learned so
many programs since my BBS days, I feel like my head is going
to pop!


                                        John



--- In Homebrew_PCBs@y..., Hans Wedemeyer <hans@c...> wrote:
> John,
> Yes you can. EAGLE will allow you to do layouts without a schematic.
> It is a little more involved when you don't have a schematic, but 
easy
> anyway. ( shame on you, you should have a schematic and EAGLE will 
check
> the board for you and dozens of ways... ! )
> ( I just did my first board without and schematic and it works 
fine )
> 
> Anyway, you must NAME each pad that needs to be connected to GND  
with
> the same name GND (for example)
> 
> As you name them you should notice a thin ratsnest wire appear 
between
> each pad that has the same name. These are called air-wires.  You 
can
> use them to manually route the connection or auto-route. Anyway, all
> these pads that have the same name will be connected to the 
polygon, and
> EAGLE make thermals for you. When you are finished with the layout,
> place a polygon (not rectangle) on over the entire board and the ( I
> forgot the most important things ! ) press the RATSNEST and it will 
fill
> the entire polygon. Then NAME the POLYGON with the NAME command and
> enter the NET name for Ground (normally GND) and it will ask if you 
want
> to connect it to GND click OK and it will connect all Grounds to the
> polygon ...
> 
> Hans W
> 
> 
> crankorgan wrote:
> 
> >  Hi Hans,
> >         Can I put the ground plan in after I do all the other
> > traces, or should I do a section at a time? I am drawing the
> > board direct. It is not coming from a diagram made with
> > Eagle.
> >
> >                                           John
> >
> >
> > --- In Homebrew_PCBs@y..., Hans Wedemeyer <hans@c...> wrote:
> > > John,
> > > With EAGLE I add a polygon and it fills all available space. The
> > next
> > > step is to give the polygon a NET name, and naming it GND will
> > connect
> > > it to Ground... ( I assume your are using GND as the ground net 
of
> > > course)
> > > This is what the end result looks like http://hans-
w.com/rpm_pcb.jpg
> >
> > > Hans W
> > >
> > > crankorgan wrote:
> > >
> > > >  Hi Gang,
> > > >         I was wondering if any of you have done a ground plane
> > > > on a board. When I mill boards I can use the surrounding 
copper
> > > > as a ground. With Eagle and other programs I can't find a way 
to
> > > > keep the extra copper around the traces. I know I can use the
> > other
> > > > side of the board for a ground. I really wanted to stick with 
a
> > > > single sided boards.
> > > >                                           Regards
> > > >
> > > >                                            John
> > > >
> > > >
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