... ? At present I'm labelling each end of the servo wires going back to the boards with the turnout number and the track feeds are colour coded red and black. The crossing feeds to the micro switches are white. In addition I've printed out Templot plans of each baseboard at 20% of full size on A3 paper and have plotted the exact positions of all feeds along with turnout numbering, but still feel that I'm not doing enough to make fault finding later, as easy as I can? Here's a photo of the underside 2787_191809_330000000.jpg Kind regards Andrew posted: 20 Oct 2017 06:27 from: Andrew Barrowman Hi Andrew, It all looks very nice! Regarding the wiring identification you might try attaching labels from a P-touch or similar. Just use a unique three or four digit identifier at each end. I prefer to keep the wiring a bit loose (and not very tidy) so that I can tug on a wire to find where it terminates. There's another reason for doing it that way. Bundling the wires into a nice neat ...