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Best way to design a stacked PCBs circuits

autodeskguest

Hello,

I'm going to develop a circuit that will be composed of two stacked PCB.

Several connectors will provide connections between the two layers.

 

I wonder which is the best approach in EAGLE to do this.

The simplest way is of course to make different projects, one for each PCB.

 

The mains drawbacks are:

 

  • lot of signals are the same (those that go with the connectors) so any

changes to their names or net classes must be repeated in the second

project as well

 

  • the same applies for the layout: the positions of mounting holes or

any milling layer must be kept in sync with the PCBs

 

  • last but not least, in the lower PCB I have several tall components.

In the higher PCB I need to provide slots for them. Doing that in

different project is a pain because I need to write down the position of

each one and move the related slots every time I change their placement

 

I hope there is a better way to design stacked PCB circuits!

Thanks

Marco

 

Parents

  • Il 27/02/2017 14:42, Marco Trapanese ha scritto:

     

    The mains drawbacks are:

     

    • lot of signals are the same (those that go with the connectors) so any

    changes to their names or net classes must be repeated in the second

    project as well

     

    • the same applies for the layout: the positions of mounting holes or

    any milling layer must be kept in sync with the PCBs

     

    • last but not least, in the lower PCB I have several tall components.

    In the higher PCB I need to provide slots for them. Doing that in

    different project is a pain because I need to write down the position of

    each one and move the related slots every time I change their placement

     

     

    I add that having a single schematic is better because from a functional

    point of view no matter where a component is placed.

     

    I'm going to try to add a couple of routing layers to "simulate" the

    other PCB, then I will play with the CAM processor to make the two

    different set of gerber files.

     

    What do you think about this solution?

     

     

     

Reply

  • Il 27/02/2017 14:42, Marco Trapanese ha scritto:

     

    The mains drawbacks are:

     

    • lot of signals are the same (those that go with the connectors) so any

    changes to their names or net classes must be repeated in the second

    project as well

     

    • the same applies for the layout: the positions of mounting holes or

    any milling layer must be kept in sync with the PCBs

     

    • last but not least, in the lower PCB I have several tall components.

    In the higher PCB I need to provide slots for them. Doing that in

    different project is a pain because I need to write down the position of

    each one and move the related slots every time I change their placement

     

     

    I add that having a single schematic is better because from a functional

    point of view no matter where a component is placed.

     

    I'm going to try to add a couple of routing layers to "simulate" the

    other PCB, then I will play with the CAM processor to make the two

    different set of gerber files.

     

    What do you think about this solution?

     

     

     

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