Vince Valley - Wiring

I’ve been refraining from posting this article for about a month now. It was already written, ready to publish and then disaster struck in the for of MTB turnout motors, or should I say 2” thick foam roadbed. I’m not a fan of wiring because my brain isn’t wired for that kind of work. Yet, I wanted to try it out.  Give it a chance, at least do it once in my lifetime and call it done, case checked, been there done that. However, while everything went relatively smoothly, I didn’t expect foam to throw a wrench at my efforts.

Slicing the roadbed and cutting a mounting hole

Any switch motor will struggle to move points if mounted under more than a 1” thick sub roadbed. At 2”, forget it. You will need linkages in a way of another. Alright if you planned for that, but a really catastrophe if you didn’t like me. It wasn’t in my plan and dealing with rods and links wasn’t something I wanted for that layout supposed to be fun an easy. I try a tortoise, a MP4 and a bullfrog. They all relatively failed at the task and only one solution remained: cut a hole in the 1/4 “ plywood then carve out some foam to reduce thickness to 1”.

Wooden saddles

My idea was to build a wooden saddle that could be inserted under the roadbed. Under normal circumstances, just gluing a piece of plywood under the foam would have been enough to fix the motor, but since I was using foam splines, they were warping and flimsy when carved out. The saddle was required.

Wooden saddles secured in place

Fortunately, after making a jig and using my oscillating saw, I was able the cut the foam in a reliable and quite precise way. Everything was secured with a generous amount of caulk. Installing the turnout motors was fairly easy and everything is working fine at this point.

MP4 motor in place. I later enlarged the holes to make wiring easier.

However, it just confirms my hatred toward foam as a structural material. Let’s be honest for a minute. This building material is full of dimensional discrepancies caused by manufacturing. Add to that its natural tendency to warp, sag and contract with age due to degassing, it’s inherent inflammable nature as recently seen with Ken Patterson’s layout fire and the unnecessary complications it creates with turnout controls. I see little redeeming qualities remaining to outset these things. For good reasons, I’m phasing out that material from my modelling life, except for very niche uses where it performs as intended. The scenery and landforms will be crafted in cardboard, paper and other more traditional materials. That is deeply informing my choices for the future Monk Subdivision.

I want to credit Jonathan Jones for not having dropped the towel at wiring. He posted an interesting article about his wiring efforts a month ago and it convinced me to soldier on and move forward. I was quite near to trash the project altogether. But back with more positive things about wiring because not everything is dark and gloomy, on the contrary.

Up until now, I only wired layout by running bus wires and attaching feeders to each piece of rail. All that was connected to a DPDT switch which selected either DC or DCC power. Nothing more, nothing else and it worked. Turnouts were controlled manually with Bullfrog rods by Fast Tracks. Simple and elegant for modules. But this time, I wanted to experiment something I had never done with fancy panels, metal switches, display LEDs and electric turnouts. I even went as far as break the layout into 3 blocks for DC operation.

The lesson learned is that just adding a few gizmo makes the number of wires quadruple if not more. Not being the sharpest tool in the shed when it comes to wiring, I decided to do it by baby steps. I have drawn diagrams to understand what I needed and built the parts I was the most confident first, starting with feeding power to the track, preparing the LED, installing the switches. I could easily lose track of all that mess if I was trying to do everything at once. In that regard, the UK YouTube channel Horsehay Railway Modeller provided a lot of inspiration. The way he twist wires together to create manageable cables that you can run neatly and trouble shoot in case of defect really made my life much easier.

At this point, I'm about 1/3 done. Turnouts motors still need to be installed and wired, and I have to create the auxiliary power system that will feed the LEDs indicators. Also, having built two control panels, one for each side of the layout, I will need to add another NCE Power Cab Panel to the yard. I'm already regretting not having made my secondary panel larger with DC and DCC plugs. Live and learn I guess! I decided to print another version of that panel to take that into account and to revise the track layout of the yard since turnout location was modified from my original plan when I laid track.