Re: gEDA-user: pcb, optimize rats nest with polygon

[David Logan <djlogan2@xxxxxxxxxxx>]

I'd like to lodge a bit of a complaint before I ask my question. That 
way I also will not be berated as much for my question. The complaint is:

I really wish you guys would make sure to name your software things that 
are searchable. Searching for "two sided pcb" or "two sided pcb editor" 
turns up half a million hits that have nothing at all to do with the 
software named "pcb". (I have a similar problem/complaint with the CAS 
software "maxima".)

> Don't rely on polygons for an electrical connection. Use tracks instead.
> That said, it is your responsibility to make sure, that all parts of the
> polygon are actually connected. On two sided layouts I'd place vias to a
> ground plane on the other side.  On a one-sided layout jumper wires may
> be an option.

Now to my question: How do you get pcb to create a two sided circuit 
board? If I auto-route, it routes on all kinds of layers. I haven't yet 
found in the manual or searching what exactly to configure to create a 
circuit board where the components are on the top and the connections 
are on the bottom.

Thanks!
David Logan