... topic: 3559 Wiring 90 Degree and other crossings posted: 20 Nov 2019 20:28 from: Andy Reichert I've just been through the hassle of figuring out the 2 rail wiring underneath the quad 90 degree rail crossing portion of my new Grand Union. 726_201428_570000000.jpg As you can see above, just for the central crossings alone, there are 16 separate switchable corners on each of four 90 degree crossings. 726_201440_400000000.jpg My wiring diagram above was simplified as I'm using DCC with the same power block for the whole crossing And assuming either all N-S travel or all E-W and switching the whole section accordingly. Nevertheless, trying use bare wire due the shallow depth of the street sections, still caused construction problems where two (or more) wires needed to cross over. In the end I realized that a simple 2-layer PCB, using heavy current tracks, was a much easier and simpler solution. 726_201406_300000000.jpg Here is the the test PCB that arrived earlier this week. The PCB track spacing is 2" for 00/HO. The ...