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Bristol Barrow Road - Templot & Trackwork 2


barrowroad

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I have now completed most of the trackwork on the existing boards with only the South Exit turnout to finish the second phase of templot. The latest build consists of 8 turnouts, a Double Slip, 3 Way turnout and a catch point. Phase 3 will be the 2 new boards - to be constructed - one at each end of the layout which will form the scenic breaks. One will be Lawrence Hill Junction itself, with the road overbridge and the other Days Road Bridge at the rear of the shed.

 

Lawrence Hill Junction signal box is now positioned on the layout - it is still removable - and I have constructed a model of the timber framed earth bank which protects the rear of the signal box - the surface has yet to be detailed.

 

Here are a few photos:-

 

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Impressive trackwork Robin. Do you build in situ or on Templot print outs and then transfer over to the boards?

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Robin,

 

Are you confident that those oblique lines crossing the board joint will work? The boards will have to close absolutely perfectly every time as even a fraction of a mm will result in a big difference?

 

At the very least, have you thought about the old trick of sliding fishplates? I know they look a bit iffy, but I do fear for this area!

 

 

Mark

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Hi Mark,

 

The boards have pairs of C&L alignment dowels and have caused no problems with the track alignment over the past three years including visits to Scalefour shows at Wells and Wakefield. Of more concern is the protection of the track ends when moving the boards - this is why I have board end protectors which I fix on each and every time the boards are dismantled and moved. 

 

Ullypug - I build on Templot print outs and then transfer to the boards. In previous photos you will see the Templot plans attached to the boards - this is because I have two copies of each print out - one for the main track plan on the boards and one to cut up for the templates. When a piece of track is assembled I remove the section from the board and replace it with the built track - it is easier to align all the track this way.

 

Robin

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Mark,

 

One further thought - the track along the front edge of the layout 'represents' that leading to the carriage sidings which were alongside the shed and will not join to any other board - even though certain people have mischievously suggested I model the carriage sidings they will not be modeled.

I use 12BA 16mm long cheesehead brass screws as track rivets to fix the rail at all baseboard joints. On the normal joints these are used on at least two sleepers but on the oblique ones usually five.

 

Robin

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Hi Robin,

 

It was the tracks visible most clearly in the second from bottom photo that concerned me (as I am assuming the small fillet board that is most clearly visible in the third from bottom is a permanent addition to the remainder of the board above it that came about when you increased the scope of the scheme). If these are not to connect to anything, then there will obviously be no problem.

 

I find the C&L pattern maker's dowels give good control of location in the vertical and sideways planes but they rely on partly how tight the boards are closed together and also the initial quality of the board construction and their durability to deal with the horizontal plane.

 

 

 

Mark

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Hi Mark,

 

The triangular board next to the one with the signal box is now permanently fixed due to the decision to increase the trackwork. The tracks shown in photo 9 are those mentioned above leading to the carriage sidings.

 

All the baseboard ends and sides are been made from 2 layers of laminated 6.5mm top quality birch ply.The boards were constructed by my good friend Chris Yates who now takes commissions for building baseboards - interested? For those who attended S4 South West at the weekend and saw Gerry Beale's embryonic  Maiden Newton the boards were constructed by Chris. 

 

Robin

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