I am very much looking forward to finalising the track layout next time I can get up into the loft.
17 April 2009
No longer waiting for the points
The points I ordered have arrived. The Peco double-slip (of which I now own two) is truly a thing of beauty!

I am very much looking forward to finalising the track layout next time I can get up into the loft.
I am very much looking forward to finalising the track layout next time I can get up into the loft.
15 April 2009
Waiting for the points
I'm very excited about the fact that I've ordered my first batch of streamline points for the model. I just had confirmation from the vendor (Osborns models) that they are on their way. When I have the points I will be able to do the final station layout and so decide exactly where the baseboards are best joined at F1-B1 and F5-B5. Because of the clusters of points in the station approaches I need to join the baseboards where the track sections join, not in the middle of a section... hence needing to know how the track lays out before finalising the boards.
I decided not to buy points for the branch line at the moment. I still don't have a clear idea about where the branch line will go, so it seems premature to order in the track and points.
I decided not to buy points for the branch line at the moment. I still don't have a clear idea about where the branch line will go, so it seems premature to order in the track and points.
08 April 2009
Completing the first incline
The first of the two big inclines on this model is now complete...

The picture shows the finished double-track bed for the feeder tracks, with the final running height at top board level. Most of the bed on boards F3 and F4 will be "above ground" in the final model; the tunnel portal will be somewhere at the right-hand side of F4.
At both ends of the incline I have tried to ensure that there is a smooth transition from gradient to level; the upper transition happens in the middle of F3 (looking at the photo, it seems that it may still need a bit of adjustment). I certainly want to avoid changes of gradient at the edges of the boards at all costs, as here the track will be discontinuous as well.
The feeder track beds are made from 6mm MDF (the remnants of my old table-top layout) braced underneath with battens to increase rigidity. Because the top material is 6mm grade rather than 9mm, I have added an extra 3mm of height to the supports at top board level, to ensure that the surface levels align when the 6mm MDF meets the 9mm plywood further round the loop. As I've gone round I have also been adding extra front-to-back battens to F3 and F4, to provide extra strength and make it easier to attach the track bed supports.
I am pleased with recent progress and am looking forward to completing the loop round to the station approach on B1u. Next comes F2 and a bridge over a river!

The picture shows the finished double-track bed for the feeder tracks, with the final running height at top board level. Most of the bed on boards F3 and F4 will be "above ground" in the final model; the tunnel portal will be somewhere at the right-hand side of F4.
At both ends of the incline I have tried to ensure that there is a smooth transition from gradient to level; the upper transition happens in the middle of F3 (looking at the photo, it seems that it may still need a bit of adjustment). I certainly want to avoid changes of gradient at the edges of the boards at all costs, as here the track will be discontinuous as well.
The feeder track beds are made from 6mm MDF (the remnants of my old table-top layout) braced underneath with battens to increase rigidity. Because the top material is 6mm grade rather than 9mm, I have added an extra 3mm of height to the supports at top board level, to ensure that the surface levels align when the 6mm MDF meets the 9mm plywood further round the loop. As I've gone round I have also been adding extra front-to-back battens to F3 and F4, to provide extra strength and make it easier to attach the track bed supports.
I am pleased with recent progress and am looking forward to completing the loop round to the station approach on B1u. Next comes F2 and a bridge over a river!
30 March 2009
Board notation
The first feeder tracks
The first section of the feeder track is now in place.

This picture shows boards B5 and F5 with the double-track feeder from the storage sidings (B5l), eventually destined for the station (B1u). The track is not fixed; I only put it down to test the alignment through the curved sections. The final elevation of the feeders in this picture is about 5.5cm above base height, and the maximum gradient (~3%) is about half what you get using Hornby inclined piers at their standard spacing. I want to avoid going any steeper than that if at all possible.
Eventually, all of the track bed shown here will be covered by scenery, and the track will emerge from a tunnel portal into a cutting just to the left of this picture.
I have not paid any attention at all to the front boards since I first built them months ago, and I found that I had to put a lot more front-to-back bracing on board F5 before I could fix any track beds. I will of course have to do the same for the other front boards when I get to them.
The plan of attack is to complete the entire outer mainline loop, right round to the LH station approach, and then work on the inner mainline loop which connects the RH station approach to the LH storage sidings.

This picture shows boards B5 and F5 with the double-track feeder from the storage sidings (B5l), eventually destined for the station (B1u). The track is not fixed; I only put it down to test the alignment through the curved sections. The final elevation of the feeders in this picture is about 5.5cm above base height, and the maximum gradient (~3%) is about half what you get using Hornby inclined piers at their standard spacing. I want to avoid going any steeper than that if at all possible.
Eventually, all of the track bed shown here will be covered by scenery, and the track will emerge from a tunnel portal into a cutting just to the left of this picture.
I have not paid any attention at all to the front boards since I first built them months ago, and I found that I had to put a lot more front-to-back bracing on board F5 before I could fix any track beds. I will of course have to do the same for the other front boards when I get to them.
The plan of attack is to complete the entire outer mainline loop, right round to the LH station approach, and then work on the inner mainline loop which connects the RH station approach to the LH storage sidings.
19 March 2009
The secrets of board B5

The entire of the back section is now constructed. Board B5, the right-hand section, went in most recently. This means that all of the solid-top area of the layout (basically, the station and its approaches) is now ready for final alignment, fixing and track laying.
Here is board B5 with the lid off showing the supports and the storage siding approaches. The small spur in the foreground is the feeder for the branch line, the larger one behind it is for the main line.

Until recently I thought I would have a break from construction once I reached this stage, and lay track in the storage sidings. But I have decided that, instead, I will push to complete the constructional aspects at the front, put in the track beds and scenery supports, and get the frame completely ready, before I lay any track anywhere. This is partly because I don't have all the track I need yet, partly because of the danger of getting sawdust into the mechanisms, and partly because I don't want to run the risk of forgetting how I've built things if I have to come back to it later. Having got the hang of this cutting, glueing and screwing lark, I am in the mood to complete the woodwork and get it all out of the way so that I can turn my full attention to the fun bits. So now I have to start thinking about gradients again to build the storage approaches, and about track courses and the shape of the scenery along the front sections.
I'm enjoying the construction side of things more than I expected, but I still want to get it done so I can turn the frame into a railway.
03 March 2009
It's been a while...
Much time has passed with little progress; other commitments have intervened. But the past few days have at last allowed some progress again. The fourth baseboard is now in place (seen below with added train for scale!). When I eventually got time to work on it, it went together pretty well and retains the level of the others without any adjustment being required.

That leaves the right-hand-most of the back boards still to do. In some ways it will be the hardest because this section is a little bit wider than the others, i.e. a few cm wider than a standard 606mm plywood sheet. But now I know what I'm doing, I should be able to complete it smoothly enough, given the time.
Cue arty shot of the train in the above photo...

(It looks better if you don't blow it up to full size.)
Every time I complete a milestone (even a mini one like this), my desire to get trains running comes back. And it's good to know that the next major expense will be track and pointwork, rather than wood and screws.
In the last post I promised an update on the track plan. Well, here goes. Like all good track plans it is still evolving, and there are some problems I haven't found solutions for yet.
Comparing this with the previous track plan (see this previous post) reveals a number of important changes:

That leaves the right-hand-most of the back boards still to do. In some ways it will be the hardest because this section is a little bit wider than the others, i.e. a few cm wider than a standard 606mm plywood sheet. But now I know what I'm doing, I should be able to complete it smoothly enough, given the time.
Cue arty shot of the train in the above photo...

(It looks better if you don't blow it up to full size.)
Every time I complete a milestone (even a mini one like this), my desire to get trains running comes back. And it's good to know that the next major expense will be track and pointwork, rather than wood and screws.
In the last post I promised an update on the track plan. Well, here goes. Like all good track plans it is still evolving, and there are some problems I haven't found solutions for yet.
Comparing this with the previous track plan (see this previous post) reveals a number of important changes:
- The trackwork has been upgraded to Peco Streamline, so the pointwork is smoother and more convincing. The plan now calls for two double-slip points
- I have broken the link between the mainline tracks at the bottom right. Previously there was a way of getting from one to the other, to allow an artificial tail-chase. I liked that less the more I looked at it
- The branch line now follows a different course and now diverges at (1.8,0.3) just before it disappears off the plan. The RH branch goes into short storage sidings underneath the scenery. The LH branch is supposed to link up with the storage sidings under the main station, but there is a lot of height to lose and I'm not sure how to do it yet. One possibility is a helix - not a particularly realistic construct, and one for which space is not readily available, but a good way of packing lots of gradient into a small space.
- The plan has fewer sidings. This is not necessarily a good thing as most real railways have lots of sidings around stations, and operationally I will need some. But it's better for avoiding too much layout clutter. I am sure the final siding arrangement will change again before being committed to the model.
- There is also a bit of rudimentary scenery (i.e. a river and a bridge!). I am still learning how to make the most of the scenic features in XTrk.
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