Saturday 20 November 2021

Double Jointed

Not only is the world-famous Ffestiniog the home of the articulated steam locomotive it also has a rather special double-articulated infrastructure wagon, which I am busy scratch building for a second time for a customer.


Yesterday's task was the tricky business of making it bend - in two places - which is why I waited until I was in the mood to tackle it.

The challenging bit of the process is to hold a 10BA nut captive in styrene.

This is quite simple when you're working in brass because you just solder it in place, but soft styrene is a different matter.

What I did - and I'm trusting this will be a long-term solution here - was make T-shaped sections to fit in the bottom of the boxes which make up the main body of the wagon and ream a hole that was tight enough that the nut could be pressed into it, but not so tight as to distort or crack the plastic.


The hole was also lined with a smear of super glue and then another piece of styrene - with a smaller hole - was fixed on one side to prevent the nut being pushed out and disappearing inside the body of the wagon.

With these fitted in the place in the boxes what I did next was make up the bar which connects the two vans and forms the spine which the central platform is fixed onto.


When you turn it the right way up the result is what you see in the picture at the top of the article.

The next stage will be to fix the Hudson skip wagon chassis underneath the two boxes so it can sit on rails for the first time.


No comments:

Post a Comment