I am quite new in the Eagle world and I need help. I have made a bunch of simple prototyping PCBs of different sizes as part of a custom library and now I want to add a GND bus and a VCC bus (like in the photo below).
enter image description here

I have done some research and I have found this project:

enter link description here

in which this guy is just using the routing command for connecting the holes in the GND bus. But I still have a couple of questions: 1) Is this the best way for solving my issue? 2) It is possibile to do the routing directly in the library editor or I must do this in a new project? 3) Is there any difference between a route on the bottom layer or in the top layer for a 2 layers PCB?

Thank you for your time!


1 Answer 1


I think that you are trying to make a ground and power planes. Just enclose the pins you want to connect in a polygon.

Have a look here how to use polygons:

Sparkfun tutorial

Dangerous Prototypes tutorial

  • \$\begingroup\$ thank you for your answer. I was thinking to add a GND plane and a VCC plane, but in this case I should make a 4 layers PCB instead of a 2 layers PCB, isn't true?. \$\endgroup\$
    – Ardenne
    Commented Mar 31, 2017 at 0:47

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