I'm building a new layout approximately 38x85 inches. The talbe top will be covered by 1" foam. The layout was designed in WinRail. I have printed it out full scale on 45 sheets of paper which I have accurately taped together. I have the full size printout lying on top of the foam and now my question is "How do I transfer the tracklines from the paper to the foam"? Any bright ideas out there?