Homebrew PCBs

On Thu, 05 Jan 2006 22:18:29 +0100, leon_heller  
<leon.heller@...> wrote:

>
>
> I've uploaded images of the most complex Pulsonix demo before routing
>
> and after to Files > LCDpub
>
>
> They are routing1.gif and routing2.gif. Eight layers, 1287 pins.
>
>
> The routing (100%) took 2 minutes 17 secs. I have a got a very fast
>
> machine (64-bit twin core Athlon with 1 Gbyte RAM). The router does
>
> cost $2,500, though.
>
>
> Leon


Well, give me four layers and i route you that mess too ;-)
I mean that's not really good routing, is it? it's just running traces  
until you hit another one and setting a via.

Also, the parts placement is not good either. It looks like the parts are  
just put there more random than anything. Some busses seem to run right  
across the board, much longer than they'd need to.

Now if we ignore these large scale issues (i'm not gonna make 4 layer  
boards with 1287 pins tomorrow), and look at the detail work, it's still  
crap. i mean, look at the very top very left pad, what is that?  
practically whereever i look i see something i don't like.

This tells me i'm not just too stupid to get my autorouter working  
properly, yours is just as crappy.

Could you try a smaller, single sided board?

thanks

ST