New 7mm Project

Easterner

Western Thunderer
Good Evening,

I just thought I'd start a new topic to show you what I have been working on recently, and for any feedback on what other people think of the plan and for some guidance on a few finishing touches for this design.

I have recently been working on a project with a friend of mine, who has recently started out in 7mm. As you will see from the attached photos. The project consists of two parts; a permanent fixed running loop with fiddle yard and a integrated layout that has been designed to exhibit.

The outside loop, which contains a double slip, two points and a passing loop on one side and a ladder fiddleyard on the other side. This has been designed based on 32mm Peco track work, this part of the layout has already been built and is just about up and running. The fixed part of the layout has been designed like this so we have somewhere to continuously run locos and to allow friends to run there 0 gauge locomotives which may not be suitable for the finer gauge on the main layout. The plan also allows something to be run on the outside loop, yet still allows the inner loop and fiddleyard to be ran independently.

The second part has been designed so it can be operated as part of the fixed outside layout but so it can also be operated at an exhibition. When at home in the garage, the layout can be operated via the branch line exit and the main line will effectively be used as a head shunt. When at an exhibition the main running track will be utilised with it's own traverser and a secondary traverser or fiddle yard will be bolted onto the branch line track.

Although the current photo shows the layout built with 7 baseboards in a row, the intention is to have 4, 4ft boards and 1 3ft board (which are shown as track centre line outlines) then a trapezium shaped board which will reverse the layout in a "U" style followed by another 4ft baseboard - This is to allow maximum access when at home and during construction. When exhibited this additional trapezium shaped board will not be used but and an additional 4ft scenic board will be bolted on instead. Hopefully this makes sense from the attached pictures. (I notice the plan has changed slightly across these two pictures but is mainly there to show the two baseboard arrangements)

The main design constraints of the layout is to utilise the space as much as possible, whilst still being able to operate the layout via the branch line road when at home. Additionally, we wanted to create something that was simple, flowing and not to over cramped. The other limiting factor is the single radius on the right hand of the garage.

The exhibition part of the layout will be built to 31.5mm, and will be loosely based on a fictional Southern Region station, somewhere down towards the coast with the possibility of utilising holiday traffic. The largest loco is likely to be a King Arthur, but mainly it will be nothing bigger than a T9/T3. To suit my interests, it is also intended to be built so that the buildings could be changed to reflect a Eastern region station giving the option to run two era's of stock if required.

As you will see there are a few complex pieces of point work, mainly the diamond crossover arrangement which will lead into a double slip, which I am currently struggling to design myself in Templot. Being fairly confident this is the final draft of the plan in terms of the layout plan, I am now currently trying to finalise it by building a proper slip in Templot and sort out the sleeper spacing and orientation. However, if someone would like the challenge who is more confident, and probably a lot quicker and familiar with Templot and would perhaps like to "have a go" at sorting this part out and perhaps some help with the sleeper spacing and orientation around this part of the layout, it would be most appreciated. Alternatively, any ideas, suggestions and pictures to help with this would also be greatly appreciated.

As said above, I've posted on here in the hope from feedback from others on the plan, and any potential bottle knecks/problems people can see before construction starts. We have taken delivery of 6, 4ft x 3ft 3 baseboards this week and one 3ft a 3ft 3 board, so we are hoping to finalise on a plan within the next couple of weeks.....!

This is the Boards set up as they would be at an Exhibition - Obviously it cannot be setup like this at home due to the rooms constraints and would require two fiddle yards as described above, and hence the image below for home operation
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Baseboards setup for Garage Operation
(The 3ft board that the bulk of the point work board has since been extended to a 4ft board)
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Alan

Western Thunderer
I saw it when I picked up some books from Dave a couple of weeks ago. Very impressive.
BTW how did it go at Great Eastern yesterday?
 

Wagonman

Western Thunderer
I would be wary of having a baseboard joint in the middle of a scissors crossover...
 

Easterner

Western Thunderer
Good Evening All,

Things have progressed quite well from my initial post and when I get my new phone sorted I will try and upload some pictures of the progress, but essentially most of the track work is now complete and all the point motors have been fitted, the next task is to wire the layout up and test it functionally. However, after this we'd like to turn out attention to signalling so we can get a rough idea of where they need to be mounted, where point rodding will be required and running cables to operate them before progressing with any scenic work. Unfortunately, signalling isn't really mine or my friends strong point so we could do with some advice, opinions and suggestions to progress things!

I have drawn up a plan of the layout in Templot Sketchboard, I have copied this into paint and added some lines to indicate the diamond crossing that is a double slip, the platform and a proposed location of the signal box. the Branch comes in from the top of the layout and the main line comes in from the right.





From what knowledge I have, I presume that there would be a bracket signal at the end of the platform. I presume this would have two main starter arms, one for each platform but would these give a route indication or would this be determined by the road that the signaler pulls off? In addition to this would each road require a subsidiary signal for shunting or would the main arm just be given? Moving down the line, on the main line there could be a section signal towards the end of the scenic section?

As for arriving at the terminus, I presume there would be a home bracket signal outside the main point. I am unsure what arms and indication this would require as you can effectively access the loop, platform 1, bay platform and yard from the main line. Again, I presume there would need to be a subsidiary arm or ground signal for shunting or when the platforms are occupied? I don't think the branch at the top requires any signalling as it is not on the scenic part of the layout for long enough to model any. However, I presume the yard and loop are going to need some ground signals, etc.

The layout is going to be set in Southern steam around the 1930s to 1940s.

We would be most appreciative if anyone could comment on the above or perhaps give some advice on the how the layout might of been signaled.

If anyone needs any further information to add comments for the signalling requirements, please fire away!

Thanks in Advance

Josh
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cbrailways

Western Thunderer
Hi Josh, for starters (no pun intended) you will need a set of trap points leading from your two sidings to the bay platform to protect the passenger running line from the sidings. I can work out a signalling scheme for you but it might take a few days.
 

Easterner

Western Thunderer
Thanks for your reply Chris and your initial pointer, we will bear this in mind and look into the best possible way and place to retro fit either one or two traps.

I look forward to your response in regards to a signalling scheme. If there's anything else you'd like to know, please fire away :)
 

Easterner

Western Thunderer
I have had a go at adding signalling to the original plan.

7mm Southern Terminus - Signalling Attempt.jpg

This is only a first, rough attempt, and appreciate it doesn't include an outer home or outer Starter/Section Signal on the main branch.

I have designed the Starting Signal on those based at Exmouth, but have also seen a different arrangement at Halwill Junction, where both platforms have there own bracket signal with two arms - Essentially the same as Exmouth but split into two.

My biggest concern is the Home signal and also the shunting signals or subsidiary signal arms required on this and the starter signal.

Thanks again in Advance
 
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