Boxfile diorama extended .

Discussion in 'GB2. The Display Track Build' started by unklian, 7 December 2018.

  1. unklian

    unklian Western Thunderer

    I had hinted that I might participate in this build by rebuilding an existing project. So I hope this is enough of a change to qualify. After a period with too much 'life' in the way I am back on track and way too late . But like the wagon build I am going to at least try and pick up where I left off . See
    Unklian's G3 workbench . for the beginnings of this project ..
    So the set up has been extended by one board/boxfile ..

    RIMG0765.JPG

    But more importantly I have made up and installed a lot more tramway style rail to give a multigauge grid in the way that the old time loco factories had in their yards for testing their products before export.

    RIMG0769.JPG

    I now have rails for 4' 0", Standard, 5' 3", 5' 6", 7' 1/4" ( tah dah ) and what ever I think 45mm and 32mm would represent . There is also a pairing at 6' 3" but I know of no prototype for this ( yet ? ) .

    RIMG0770.JPG

    Finally with the walls in place it is looking very tight for Broad Gauge stock through that arch ! Never mind, I have some air drying DAS clay equivalent and I am going to set to soon on some 'proper' cobbles .
     
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  2. Neil

    Neil Western Thunderer

    You might want to source genuine DAS clay; I've found that it's the only brand (so far) that doesn't crack on drying.
     
  3. Mike W

    Mike W Western Thunderer

    Ian, since you started this I've thought it an absolutely bonkers idea. With the extension and extra track it is now even more so ... and I love it!
     
  4. unklian

    unklian Western Thunderer

    Thanks for the tip Neil , I have some terracotta DAS but I wanted to try a grey colour, which as far as I can see DAS don't do . I have some grey Newclay to try. Can you remember any of the brands that cracked ? How thick is the DAS on Vischkaai roughly BTW ?

    Thank you Mike !
     
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  5. 76043

    76043 Western Thunderer

    I bought two packs of Newclay, I'm hoping it doesn't shrink too...

    I am wondering if the thickness and ambient temperature of the room might have something to do with cracking???

    Would love to know.
    Tony
     
  6. Neil

    Neil Western Thunderer

    I'm afraid I've been away in York for a few days so I'm a bit late replying. The clay that cracked was own brand stuff from The Works, however I remember Chris Nevard commenting that only Das was immune from cracking. I have no experience beyond these two brands. The Das on Vischkaai is the full depth of Peco code 100, approximately 4.5mm deep, done in two layers. The first being to the top of the sleepers, the second to the top of the rails. I did this more to make sure that I'd filled all the gaps round the sleepers level to their tops rather than for crack mitigation. I'm guessing that this seems slightly irrelevant for the beefier dimensions of G3 permanent way.

    I used the off white Das and tinted it but would be most interested to hear how the grey Newclay brand works as a grey base colour has significant advantages over the off white.

    I've used both the own brand and Das clay in my previous home, a damp and cold stone built chapel, the Das worked fine but the own brand cracked. Recently in the luxurious warmth of my downsized bungalow the Das has behaved itself in pretty much the same way as in the harsher climes of the chapel.
     
  7. geoff_nicholls

    geoff_nicholls Western Thunderer

    Are you thinking of laying sheets of DAS down and imprinting cobbles, or making a mould and casting large numbers of individual cobbles, to be laid in some sort of glue? I guess the latter would be less prone to cracking.
    Also, (playing the pendant card) is this still France?
     
  8. Alan

    Alan Western Thunderer

    I don't know if they still do but DAS did do A grey/white version. I think I still have a pack. I used another on covering a stone bridge for a model for a museum I worked at. The building of it is somewhere in my Wencombe thread.
     
  9. unklian

    unklian Western Thunderer

    Thank you Neil, Geoff and Alan for the knowledge. I do seem to remember when DAS first came out ( 1970's ? ) it was grey in colour . I was hoping to impress the cobbles whilst the DAS was still soft, but if that did not work scribe the hardened DAS as per Mr Harrap's method . As it is the DAS will be 5 to 6mm thick to match the height of the rails. Some areas will be quite small and if cracking proves to be a problem on the larger areas, I could probably subdivide them into smaller areas . Still got a bit more work prepping the base board before I wield clay ......

    And Geoff it can be anywhere, it just had to be French for the original competition .