Homebrew PCBs

On Fri, 10 Mar 2006 20:17:11 +0100, derekhawkins <eldata@...> wrote:

> **If** your CAD program has the tools to redo the pour then what you
>
> said below is meaningless which was the point of my reply to the same;


I could do the pour first thing, but what would be the reason for doing  
that?
I still would need to route all signals, and having a colored area there  
in your work field is sort of distracting, and switching it invisible  
makes creating it first thing a bit unreasonable.

> It's quite possible that all relevant CAD programs cause a pour redo
>
> when the board opens...Something like a reset. Perhaps the only
>
> difference with Eagle is that by default the redo doesn't take place
>
> automatically allowing you to edit in unfilled space first if you so
>
> wish. Otherwise, there would have to be a command to rollback the
>
> pour. Neither here nor there IMO.


I would say all CAD programs cause a pour redo each time the display is  
refreshed, no?
For example, if you move a trace the pour must change to, or there will be  
shorts.

ST