Thoughts on Baseboard Construction

I have mumbled a little, on a couple of blogs, about my thoughts for baseboard construction. The baseboards for Boscarne Junction are going to be relatively large. If I used the plywood and softwood sandwich technique they’d require two people to move them. The basic idea is to build baseboards that I’ll be able to lift and move around when I’m in my 7^th decade.

When visiting York Model Railway show in 2019 I became intrigued with Gordon Gravett’s baseboards for Arran Quay and way he’d sandwiched insulation board between thin plywood. I was not sure about using the same insulation board for the baseboard tops but he had made it work. This method of construction must have created a very light baseboard easy to lift and move/transport.

Many years ago I purchased a number of 2ft x 4ft x 1 inch sheets of insulation board for creating hex terrain for wargaming. There are still eleven sheets left from that project which are taking up space in my shed. My intention is to rather than dispose of these sheets is to make good use of them for Boscarne Junction’s baseboards.

As my insulation board is only 1 inch thick I’ll not be follow Gordon’s methods fully but to borrow his general idea. Hopefully the drawings below will help to explain my intentions better than words.

Version 9

Just when I thought version 8 was the final track plan, I’ve now produced a version 9.

When starting to consider how the layout was going to be operated, my thoughts went to the enjoyment I gained when invited to operate other layouts. Especially those where a signalman controls a signal box and the train driver has to obey the signals. The use of bell codes, interlocking lever frames, and train driving to signals fascinated me. It all added to the operating experience and is something I'd like to pursue for Boscarne Junction.I questioned how I going to include this feature into my model?

If I'm going to create off scene signal boxes in the Fiddle Yards, which use bell codes to communicate with Boscarne Junction signal box, I have a problem with the Wenford branch. There was no signal box at Dunmere or on the Wenford branch. I believe the Guard of the Wenford train walked to Boscarne signal box to retrieve/return the key for the Dunmere Ground Frame. Then the train crew operated the two ground frames. I thought this is something I’d like to include in the model.

In an attempt to include this type of operation, I’ve decided to separate the layout into three operating areas

1. Boscarne Signal box & Wadebridge Fiddle Yard (There would be the possibility to split Wadebridge Fiddle Yard away from the Boscarne Box).
2. The Bodmin North, Bodmin General & Wenford Fiddle Yard.
3. Train Driver who’ll also control both Boscarne and Dunmere ground frames as the train crew would have done.

In doing the above, should give a reasonably authentic operating experience to this layout.

At this point I’d like to thank David Woodcock again. I’ve only been able to consider doing this due to his contribution with the signal diagrams and locking tables. Many thanks David.

I started mess around with the plan to see if I could squeeze in Dunmere Ground Frame and the junction turnout into the track plan. The only way I found was to move the whole of version 8 track plan back to the left. This dramatically reduced the scenic area before the level crossing which I’d created in version 8. I felt this compromise for home use was well worth taking as it will increase operational interest. There were always thoughts with version 8 I’d add a further scenic board at the Wadebridge end for exhibitions, version 9 will be no different. Still a bit left to do as there are still a few scenic items to identify and mark on the plan along with checking on edge profiles and land contours.

 

Above is how the layout will look when at home. I briefly mentioned that the track plan is now drawn to fit the baseboards. This is due to the comment about knowing angles for baseboard construction. I will construct the three baseboards making the curved scenic section with the same diverging angle (23 degrees). They will either be stackable on each other when boxed or I should be able to construct a rack into which they will all slide.

Below is my cursory thoughts for exhibitions.

Further thoughts on the track plan (v.8)

 I wasn’t going to revisit the track plan until the man cave was empty so its internal dimensions could be confirmed. That was until I was able to squeeze in a day’s visit to Boscarne Junction after being in Torquay for a wedding. The visit was to take photos of the wider surrounding area. The site is now dramatically over grown compared to the photographs I have which were taken in the early 1960s. That said the embankments, paths, field boundaries seem to not have altered. Plenty of photographs were taken which I hope will enable me to replicate the topography around the junction.

While at Boscarne then subsequently looking at my track plan I began to feel I’d drawn it a little out of proportion. Siding 2 (along the back towards Bodmin North) looked too long. In reducing its length  has made it feel more in proportion. In doing so I’ve been able to move the whole track plan to the right a little which has slightly increased the visible track left to the level crossing.  In my attempt to balance the space available between scenic and fiddle yards I’ve had to reduce the overall length of the junction and sidings. There is approximately 13.5ft between the two quarter mile posts as opposed to 17.3ft for a scale quarter mile. Even so, the hope is this will still create a recognisable layout with the ability to operate as near as possible realistic train movements to a replica BR timetable.

Boscarne Junction v.8

To give me the possibility to add a further board at the Wadebridge end I’ve also twisted the track plan slightly. In doing so means the track beyond the level crossing (towards Wadebridge) now runs parallel to the baseboards sides. This will allow the fiddle board that I’ll be using at home to be connected to the extra scenic baseboard if it ever is invited to a show.

Next thoughts:

1. How to build the baseboard supports and at what height should the layout be?
2. How to integrate lighting on the model as well as prevent other external lighting to affect the visual effect. 
3. Need to think about the overall operation of the layout (my initial thought may need to produce v.9 of the track plan)