As regards the problem with wagons involuntarily uncoupling over the magnets (see beginning of video in post 92 above), I am currently making slight alterations to each item of rolling stock to rectify the issue before the Tonbridge show on 21st February. My co-operator, Matthew, discovered this wheeze when in conversation with another exhibitor at a recent show. Sadly, I don't know the gentleman's name, but my thanks to him all the same.
The problem appears to be that when being pulled, free-rolling stock has the ability to catch up with the wagon in front, thereby disengaging the coupling hooks from the bars (Bachmann NEM hook and bar couplings). When going over the permanent magnets buried beneath the track, this allows the hooks to lift and the wagons uncouple. The solution appears to be to introduce some drag to slow down each wagon so it is not running away, and the couplings remain taut. To this end, a small rectangle of foam is fixed in place between one axle and the floor of the wagon. In the case of Bachmann wagons, this actually means attaching the foam to the coupling housing beneath the axle. The distance involved only amounts to about 2.5mm. The search was on for foam of suitable thickness and after a perusal of the local Poundland, I came across a packet of four shoe insoles for £1. Bargain! Not only are they of the correct thickness, but they are also the right colour - black. I trimmed a pair to the wife's petite shoesize and gifted those to her, keeping the remaining offcuts, there being enough left for dozens of wagons. If your missus has large 'plates of meat' (sorry, I'm a Cockney!) then you are in trouble! I attached each small foam rectangle with an acrylic adhesive called 'Cosmic Shimmer'. I use this adhesive for all manner of jobs around the railway, finding it particularly useful for making card buildings.
I initially converted four wagons and tested them on the layout. Not one wagon uncoupled unexpectedly. I am now converting the rest of the rolling stock for London Road Sidings. It is a matter of a few minutes to cut the foam to size and glue it in place. I attach a couple of photos to clarify the foregoing.
See you at Tonbridge.
Terry
