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How do you add additional signal layers to an existing library?

Former Member

I created several packages in a custom library to evaluate the Eagle Freeware version (limited to two signal layers). I have since upgraded to allow up to 6 signal layers.

 

I understand how to change the number of signal layers for the actual PCB editor through the Design Rules, but this does nothing for any existing library packages created in the Freeware Version.

 

How do you add additional signal layers to an existing library?

 

My current workaround is to simply copy all layers to a completely new package in a completely new library (that now shows 6 available signal layers), but this seems unreasonable. What now happens if I upgrade to allow up to 16 signal layers?

 

Sorry if I have missed something trivial.

  • 0

    On 25/08/14 06:18, Chris Engberg wrote:

    I understand how to change the number of signal layers for the actual

    PCB editor through the Design Rules, but this does nothing for any

    existing library packages created in the Freeware Version.

     

    How do you add additional signal layers to an existing library?

     

    Why are you putting signal layers in a library?

     

    In normal use, a library contains components with footprints that

    include the pads to solder to. It's rather hard to imagine how one would

    solder to a pad on an inner layer!

     

  • 0 in reply to autodeskguest

    Why are you putting signal layers in a library?

     

    In normal use, a library contains components with footprints that

    include the pads to solder to. It's rather hard to imagine how one would

    solder to a pad on an inner layer!

     

     

     

    Eagle is built on precise user control of layers from the package design to the ultimate CAM output. For example, there are scenarios where you might want to alter the ring size on each layer in a throughhole. Or perhaps you have specific thermal requirements that demand extra copper planes. In both cases you might want to view each layer independently.

     

    This is beside the point:

    In a library package created in Eagle Freeware, a package has 2 copper layers. In the Hobby version a package has 6 layers. I assume the full version has 16.

     

    But if I view a Freeware-created library in the Hobbyist version, it still has 2 copper layers. For the life of me I can't figure out how to show the other 4...

     

    Thanks for your quick response.

  • 0 in reply to Former Member

    On 25/08/14 09:34, Chris Engberg wrote:

    In a library package created in Eagle Freeware, a package has 2 copper

    layers. In the Hobby version a package has 6 layers. I assume the full

    version has 16.

     

    In the libraries supplied by CadSoft for the professional version, there

    are only two copper layers, because this is the normal usage of libraries.

     

    But if I view a Freeware-created library in the Hobbyist version, it

    still has 2 copper layers. For the life of me I can't figure out how to

    show the other 4...

     

    Have you tried "set used_layers"?

     

    Cheers,

    Rob

     

  • 0 in reply to autodeskguest

    ...this is the normal usage of libraries.

    I know that I am stretching the purpose of packages and libraries...

    Have you tried "set used_layers"?

    This is what I needed. Thank you. Still getting used to this half GUI-based, half command-based program. Powerful, not always intuitive.