I have been doing that with Eagle too....  I've found that the maximum
"free" size of Eagle is very usable for most of my projects.  I will be
purchasing the professional version, but more for the added layers than
the bigger size.

I've built a number of projects where I've stacked the boards.
Processor board (PIC of course ;-), I/O board, Amplifier board, LCD,
etc.  I've been using single and dual row headers to interconnect to a
female socket on the mating board.  Works well, and can be pulled apart
for rework/testing.

These boards also fit into the 4 1/2" X 3 1/2" Diecast Al. boxes nicely
if you don't have more than a 3 or 4-stack.  These boxes can be gotten
from Digikey, Newark, etc....

The more I try, the more I find I can fit within the limit...  I'm
beginning to think that I can fit anything on that size if I use all
surface mount and place the parts right!

DD

On Mon, 2004-04-12 at 16:21, PicDude wrote:
> It's an excellent idea!  Especially since that's exactly what I did for the
> last application circuit I built. :-)
>
> I built ~9 separate circuits and bolted them together onto an aluminium sheet,
> then connected with lots of wires.  But it was a major hassle, and the boards
> cost more since most PCB houses won't let you place multiple circuits on 1
> board.  So I felt that I wouldn't mind paying a couple hundred bux for some
> peace of mind, and perhaps recover some of that cost on PCB manufacturing.
>
> There must be some decent software out there at a decent-ish price.
>
> Cheers,
> -Neil.
>
>
>
> On Monday 12 April 2004 04:54 am, hamandi karim scribbled:
> > hey man
> > im now very experienced in eagle although i have it, I use orcad capture
> > and layout. its very expensive but very proffesional and effective. i
> > learned from my experience from orcad that when doing a schematic u might
> > want to devide it into heirarchical parts or pages,  which brings us to
> > your problem, if u dont find a software that good at that low price try
> > deviding your application into several smaller boards, and connect them
> > with flat date cables or as you find suitable, as many applications can be
> > devided into sub groups.
> > take the example of an amplifier
> >
> > : preamp, two or three stage voltage amplifirer, then push pull current
> >
> > amplifiere. u see i devided my application into three parts.
> > try doing the same and reply to this telling me what u think.
> > regards karim hamandi
>
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