Homebrew PCBs

I am using autorouter for complex boards. It   would be nightmare to 
manually route something like high speed 32 bit databus and preserve 
signal integrity... I have another opinion: since 4 layer PCBs are 
almost as cheap as 2 layer few years ago, I am using 4 layers for higher 
densitiy PCBs. Just put power planes in the mid layers and let the 
autorouter do the boring job...

M.



David McNab pravi:
>
> Hi,
>
> I've been using Eagle for my PCBs, mainly on the strengths of its
> above-average user interface, the good component libraries (made better
> by user contributions) , but especially its autorouter.
>
> The autorouter is a pain, but gets the job done. Even if sometimes I
> need to tweak some of the parameters, and manually move traces around a
> bit after the job's done.
>
> For me, the autorouter is a $deity$-send. I just don't have the patience
> to lay out traces manually.
>
> Some questions here:
> - do people here consider it lame to use autorouting?
> - are there any other free PCB design progs that have autorouting?
> - can eagle (or any other free progs) do auto-placement?
> - is Eagle the best of the free PCB design progs?
>
> Cheers
> David
>
>