Homebrew PCBs

On Fri, 25 Nov 2005 10:33:44 +0100, Mike Young <mikewhy@...>  
wrote:

> I think the problem is simply that the board is completely routed. By
>
> deleting the ground plane, the board is no longer complete. The point to  
> be
>
> made is that Eagle does indeed pour copper into its polygons. Just
>
> experimenting on a completed board, lacking the faith of having seen it  
> work
>
> even once, it looks as useless as day old toast. If you're adding a  
> ground
>
> plane, you need to rip out the ground traces anyway for it to make sense.
>
> And then it works nicely.


It does not seem to make sense. I have no eagle but i would expect it to  
work on the finished board.

One does not usually not route ground just because you make a ground  
plane, usually one will route it in the normal way, just to make 100% sure  
there's acceptable ground paths to everywhere, additionally to checking  
the ground plane and it's connections for sanity.

There must be a parameter to specify which signal does not get isolation  
 from the ground plane, i was thinking it is the signal you assign to the  
polygon outline in eagle.

Anyway, not having eagle at the moment, i can not believe they make a  
copper pour feature that is not useful, and that can not be used as last  
step in routing a layout.

ST