I have heard/read somewhere that one bigger PCB is cheaper than multiple smaller PCBs, is this correct?
If so, then rather than order seperate PCBs for different parts of a project e.g main board with "daughter boards", is it possible that the PCB file of different PCBs be combined together such as to create one single PCB which can then be cut into its individual pieces once manufactured.
I am not talking about combining the schematics. I am talking about the actual files that give the details of how to manufacture the PCB and combine them such that it becomes one board.
If this is good idea and possible, how can this be done in Eagle PCB?