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Swanley Junction - Large four track 4mm Southern electric DCC (30' x 12')


Greengiant
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Ok here is an update!

 

The last photo is of board 16. This with boards 14 and 15 are the 'Country' section. 15 and 16 now have the cutting side and fields scenery. The bridge has been completed.

 

We have various teams working together on the layout. Each one lead by an 'expert'.

 

The S&T team are wiring the MERG system through out the layout.Currently on board 10 wiring in the servo control boards for the major junction.

 

In front of them are the permanent way team laying the hand built track using C&L components.This is a hard task as the points are made to plans from templot and need to be accurate.

 

Sometimes the S&T lads get carried away and wire up a board, only to discover that there is no track on the other side!

Edited by muddy water
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  • 1 year later...
  • RMweb Gold

I couldn't possibly say, Ian, but - yes! I've been laying some of the conductor rail - and a fiddly job that is too.

I suppose that proves you haven’t changed a lot since we last saw each other - which must have been 1984! Others have been less lucky, I suspect. Great layout and great prototype, of course.

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  • 1 month later...
  • 1 month later...

Now the main structure of the platforms are built, attention has turned to the detailing of the platforms, so a small test section was made using the Peco concrete sides and some plasticard top surface with some bracing.

 

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The platforms have a multi row paving stone edge, this was simulated using 20 thou plasticard scribed with an Olfa cutter.

 

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This was then laminated to the platform top on both edges.

 

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Because of the size of the area to cover, MEK was drying too quickly, so we got some D‑Limonene (Orange Terpene), a citrus based product which sticks plasticard but does not dry as quickly as MEK, giving a longer working time.

 

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Down the centre of the platform is a drainage gulley, this was made from 20 thou plasticard which was scraped out with a curved blade, probably a waste of time because it will be very hard to see at normal viewing distance, but at least we know it is there.

 

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This was trimmed to size and stuck onto the platform.

 

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Next a coat of primer, an area was masked off to show what has been done at each stage for reference. The primer also shows were I over scribed in places. This may be filled or developed as a crack!

 

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This left the space between the paving stones and gulley, which on the real thing is tarmac. So I tried out a new product to me, that of AK Interactive and their Terrains Asphalt acrylic. This is a fine textured product in an acrylic medium. I masked up the edges and spread it on thinly (20 thou) with a spatula, on the actual platforms for the layout I will paint the stones first before this stage.

 

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Does not take long to apply and a little goes a long way at 20 thou. You can smooth it some more if the spatula is moistened with water.

 

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With the masking removed it leaves a reasonable finish, although this does look like newly laid tarmac, that will change once I have coloured it properly.

 

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With a bit of playing around it is easy to represent broken of rippled tarmac, actually I made a mistake with this bit!

 

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Martin

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  • 3 weeks later...

Thank you for the kind comments and likes.
 
The platforms have taken on a small change, I pinched the idea from the St Michael's Hill thread using Slater's embossed rivet Plasticard. So a trial piece was started using this technique. Rather pleased with the effect it gives for the bobbled slabs.
 
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Progress has been made with a start on the town end road bridge, here the basic ply shell is being checked for fit.

 

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Martin

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Thank you for the kind comments and likes.

 

The platforms have taken on a small change, I pinched the idea from the St Michael's Hill thread using Slater's embossed rivet Plasticard. So a trial piece was started using this technique. Rather pleased with the effect it gives for the bobbled slabs.

 

43561157402_022412eff5_c.jpg

 

30015829618_3a876cb78c_c.jpg

 

Progress has been made with a start on the town end road bridge, here the basic ply shell is being checked for fit.

 

30015830688_e4cd93900a_c.jpg

 

30015832458_3e62abf202_c.jpg

 

Martin

And work has started on the 13 signals needed for the layout. They are built from slightly modified Train-tech kits, with truer colour LEDs sourced by one of out electrical wizards. There are 2 3-aspect, 7 4-aspect, 2 4-aspect with route indicators (feathers) and 2 4-aspect which will be gantry mounted. Both of the 3-aspect and 1 4-aspect have got to the stage where they can be test mounted on the baseboard.

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This is an original head, a scale 2' 6" wide, which looked too wide for the layout, where most of the signals are "old" style. So 1mm was shaved from each side

 

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This is a "spare" head. The two 3-aspect signals are shown here, with the 4-aspect one behind.

 

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and one of the 3-aspect signals was tested. The other one is not drunk, just leaning gracefully.

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Unfortunately the photo does not show the true colour of the red aspect...

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These are some photographs of the basic main bridge structure, mostly made from 3mm ply. This will be clad in various materials to represent those of the real thing that the model is based around.

 

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Martin

Edited by Greengiant
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  • 2 weeks later...

Soil has started to appear on some of the boards.

 

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This is the last board at the London end where the track goes under the motorway just prior to entering the fiddle yard.

 

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These are the approach tracks to the station at the London end.

 

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We had a delivery of Polak static grass fibres, guess what we will be doing next week?

 

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Martin

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Meanwhile, work continues on the signals, more specifically, the gantry, which is proving frustrating as it is extremely fiddly!

 

Work starts on the framework on one side

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The bottom crossbeam is added

 

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and the uprights are trimmed to size

 

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The second one is started

 

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Both crosspieces ready for the next stage

 

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Which is adding the diagonals

 

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And finally for now, the fiddly bit prior to assembly - adding the top horizontal supports.

 

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Meanwhile, the side supports were done earlier (and not subject to stage-by-stage photos)

 

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  • 3 weeks later...
  • 2 weeks later...

We were able to hire our village hall so we could assemble the whole layout and give it a shake down run.

 

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There are a few electrical tweaks to do then we can full on concentrate on the scenery. We have some thoughts on automating the control of two of the four circuits, this will only be used in times of operator shortage, lunch breaks etc.

 

Martin

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  • RMweb Gold

Your trackwork looks better than the real thing! My recollection of fast Chatham line trains on the Down Slow is they got a hell of a bang and lurch as they crossed those country end points. And of course the Fast/Slow nomenclature was always wrong. When we were doing Victoria Resignalling, there was an opportunity to reverse the terms, to make the roads leading to/from the Chathams the Fast Lines. But how to do it safely? When the nomenclature had been that way round for more than 20 years, changing it overnight was fraught with risk that the ganger might forget, and the current might be discharged on the wrong line, and that was a risk far too far. Perhaps our successors have managed it.

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  • 2 months later...

We are making progress with the main road bridge, once complete we can adjust and blend in the surrounding landscape.

 

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The capping stones are quite complex for this bridge, so we have gone the 3D printing route for these, this is the first try, just need to make them a little wider then we are good to go with these.

 

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We have also been experimenting with ways to produce the curb stones, tarmac path and block paving of the road bridge, so a laser cut sample has been produced and will be the method we will use.

 

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Next up is to design and cut the station canopy supports.

 

Martin

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