(Not) A Signal Box

Not so long ago I got into a minor dispute on a social media site with a correspondent who expressed the opinion that Minffordd looked like it was going to be quite a nice layout when it was finished.

"But it is finished!", I replied.

"How can it be?", they retorted. "There aren't any signals!"

I suppose the confusion is understandable because it looks like it's got a signal box, only it isn't.

Minffordd was in the middle of the block section between Porthmadog and Penrhyndeudraeth.

This small building is just a luxury ground frame to house the levers which control the points giving access to the exchange yard, which were unlocked by putting the section token into an intermediate instrument.

In common with the station building, which I described in this previous post, the ground frame cabin was scratch built.

I was given a big helping hand when a contact sent me a copy of the basic elevations of the various kinds of boxes found on the Cambrian.

This one at Minffordd was effectively a Dutton Type 4, which were typically found at crossings or some of the smaller passing stations, however I had to assume its dimensions were slightly larger because each of its sliding window units had 10 panes of glass, instead of just 8 featured in the drawing I had.

These window units were where I began the project.

I decided to make one set of window frames, fabricated from very thin styrene strip, and use them as a master from which I could cast copies in resin.

To give you an indication of how small they were this is a set positioned next to a UK 1 pence piece.

The smaller frame is around 10mm x 10mm.

Once enough of these had been cast they were placed within bigger frames, with them offset to allow for one to slide along behind the other.

Now I had all the window frames made I literally built the rest of the cabin around them.

This was also quite an involved process because the main part of the cabin was wooden, but it sat on a substantial brick base.

What I had to do was make it as a composite, using plain styrene sheet to get the shape of the sides and ends, and then fix the outer detail on top, using Slaters embossed brickwork sheet and moulded 'clapboard' from the Evergreen sheet range.

I also had to allow for vertical and horizonal strips to represent the outer framework.

Another challenge was how best to get the effect of the corrugated iron roof.

There are various products on the market, but some of them come as a very thick sheet, whereas the real material is so obviously thin.

So what I chose to use was the transparent glazing sheet from the Wills range, which I fixed onto plain pieces of sheet to act as the main roof structure.

There was one final challenge which was to find a way to replicate the ornate scallop design on the bargeboards.

This was as simple - and time-consuming - as shaping tiny pieces of styrene into semi-circles and gluing them on.

A lot of the detail, and the technique of the construction, isn't obvious when look at the completed cabin but I think it's a very pleasing little model, and one of my favourite things on the layout.