Layers in Eagle PCB design

Discussion in 'Electronics Resources' started by matrixofdynamism, Dec 12, 2010.

  1. matrixofdynamism

    Thread Starter Member

    Feb 8, 2009
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    Can you tell me as to why there are so many layers in Eagle PCB program??
    Also what type of wire thickness should we use and when?
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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  3. tyblu

    Member

    Nov 29, 2010
    199
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    You're likely using the free EAGLE version, which I believe has even less layers than what you would normally start with. Each layer contains a different type of information -- types you don't want to interfere with eachother. Also, the PCBs themselves can be multiple layers of conductors and insulators. You can also add custom layers for PCB fab notes, etc..
     
  4. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    5,699
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    As a simple example of how to use the layers, consider that you have a nice, fully routed board design. Go to views and select "unrouted" only. Then you can see if you missed anything. The erase command only works on the layer that is shown, so you can use that to your advantage. The origin layer is something you may want to leave "not shown," so you don't move something accidentally while routing. Etc.

    John
     
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