Saturday, 21 December 2013

Shoe shuffle continues.

The roundhouse has been an almost constant stream of shoe shuffles some forward moves with a fair few back ones, thankfully though I think I have now reached the point where its more forward, less back but hopefully only forward movements from here.

Each phase of the construction has its moments, especially when one has never done a project as big as this before, so many new areas to learn, but I think the experience has overall been enjoyable.  The primary part of the roof along with all main trusses, & the inner or turntable end are now complete, awaiting the outer trusses with smoke schutes to be built & then attached.

The smoke schutes have been a challenge especially with getting the two trusses set together & supporting the schutes. Careful study of drawings & photo's gave me the positioning & basic measurements, along with how they were attached in the roundhouses.

With the schutes finished & trusses ready, the assembly became trial & error, especially trying to get the schute, supports in place & to hold together, in this area I could find no definitive drawing to give precise measurements & timber sizes, which meant a fair bit of licencing was needed. The first one took me a full day to get together without the edge box type frame.

The simple solution was to build the whole lot in small assemblies for strength rather than true scale fidelity

The above photo shows the truss with scale 6"x6" cross bars glued in place to keep a constant spacing.  I could find no detail or measurements as to the spacings along the back wall for the two trusses, the space measurements were there for the inside or middle parallel supports so for simplicity I decided on the same spacing along the whole of the truss.  .
The middle 6x6 is to attach the chimney part of the schute, one side glued to truss, the other to the chimney.

The next step was to glue the schute assembly to the truss.
Having tried to do this without the 3 extra spacings was a real nightmare, this time & using this process I was able to assemble all remaining 7 trusses together in an afternoon, while finishing off the original assembly ready for painting.

A finished assembly awaiting painting & then attaching to the main roof, I realised that the timber sizes were a bit large, so I set about cutting all the remaining 7 cage assemblies with finer timber, only the 4 vertical sections will remain as 6"x3" with the remainder being 4x3 inch.

While I have been as careful as possible with the PVA there is still some areas where the acrylic tube paints have not taken as well as I hoped.  So after one test of a finished truss I decided to try another paint tool I use occasionally & that is blackboard paint. This proved to be better than the tubes, as it went over any area of the waxy PVA paint & covered it without issue.

What I like about the acrylics & blackboard paint is their total flat matte appearance, no sign of a sheen even of the smallest amount. To me the two mediums along with the chalk pastels provide the dusty look that is more realistic than is able to be achieved with ordinary paints including model paints,


  1. Colin

    Nice line poles, almost taut and obviously cold, perhaps I should shift my time to mid-winter 1965 and solve the wire sag dilemma.

    Ray P

  2. Ray.

    Certainly twood be easier, you could substitute sagging line for wrapped poles as per the first one on the right & when looking closely at the following ones, they also are not too straight either.


    1. Ray

      You might also be interested in how the cross arms are so well matched.


  3. Colin

    Yes, I had noticed how different they were, I wonder how that came about?

    Merry Christmas and a happy New Year to you and yours


    1. Ray.

      Thank you & for you & Chris the compliments of the season.

      I have had a quick squiz of several of my photo's on this computer & they separated types of arms are actually quite prevalent along many lines, including the Western Line, Southern & Northern lines.

      While I am uncertain of the reasons I would likely think it had something to do with separation of the lines into blocks for destinations or such. The header photo, shows the closest one with 6 arms, the same as the 2nd one, but the 3rd & 4th has 8.

      The more separated arms also are likely to be of older standards with the others having been renewed with the arms just brought together. The degree of which is also likely based on the dates.

      I have a photo I downloaded from somewhere showing a 44cl off the NCL, taken near East Maitland with a load of stock wagons, that included the 1972 types & the wires were on the split arms.

  4. Col,

    All the best for Christmas and the New Year. I trust that you health will continue to improve so that you can continue shuffling forward.

    Thanks for all of your comments and suggestions in 2013. they have been appreciated.

    cheers Phil

    1. Thanks Phil. I am glad that I have been able to help in some small ways, its what I believe makes this hobby so good.

      Health is always problematic but appreciate your thoughts, & also compliments of the season.