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Ratsnest help

av8or1

Hi-

 

When I do a general ratsnest for my current board, it tells me that there were 4 airwires.  I've looked everywhere but cannot find them.  Is there a way in Eagle to have it show me where these airwires are?

 

Thanks

  • Type "display none 19" to show airwires, then you can type "display last" to go back to your previous view...

     

    Layer 19 is the unrouted layer, in other words, the airwires.

     

    You can also accomplish the same thing by clicking on the layers icon and deselecting everything, but I find that a bit tedious.  The command line is your friend!

  • in reply to AnalogNotes

    Thanks!  Yes this would work, but not as convenient as say the DRC that clearly indicates overlaps, clearances, etc.  But you are correct.  I also figured out another way:

     

    zoom until your board is small. Then select the Route tool and start clicking on your board. This grabs the airwire and you can zoom back in and go from there.  Hardly elegant, but it worked for me.

     

    Anyway, thanks Doug!

  • in reply to av8or1

    Yes, it would be interesting to have an extra stage of the DRC to do this, but I wouldn 't want it to happen every time.  As I'm laying out a board, I tend to iterate through these three steps:

     

    1) ratsnest

    2) rip @

    3) drc

     

    (I have them assigned to F3, F4, and F5 respectively) to make sure things are good as I work through various areas of the board.  If every airwire was flagged every time, that would be a but much, at least in the beginning...

  • in reply to AnalogNotes

    Oh sure.  It wouldn't make sense to do it in the beginning, but towards the end of the design it makes absolute sense.  As a software guy, if I was supporting Eagle, I would make it a configurable option.