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daz9284

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  1. daz9284
    After a couple of years I finally got round to model a rake of nine National Power JMA's from Bachmann Freightliner HHA's. I used the information on Lyneux's blog of his go at the JMA: http://www.rmweb.co.uk/community/index.php?/blog/864/entry-11917-national-power-jma-part-2-bashing-the-Bachmann-hha/
     
    The first job - bodies
     
    I removed all the screws and separated the HHA's into their main parts.

     
    I then removed the side detail on the hopper sides and at one end on one side I cut a hole in the side for the access to the brake distributer and isolation cock. I then and glued 0.3mm brass wire around the edge for the lip.


     
    I then soaked the sides in surgical spirit for 30 minutes to remove the Bachmann paint. After 30 minutes I used a tooth brush to remove the paint, washed the bodies with warm soapy water and left them to dry. After they had dried, I glued a thin piece of 3mm x 1mm plastic to the side of one end of the body and filed it down so that it was level.

     
    As the HHA end is incorrect for the JMA, I purchased Evergreen Scale Models sheet styrene 2mm spacing metal siding. I traced around an end of the HHA and then cut out a new end from the styrene sheet, then cut off the last 'rib'.



     
    Bogies
     
    The wheels were purchased from Colin Craig and the 3D printed bogies purchased from Lyneux's Shapeways shop: https://www.shapeways.com/product/68BXCJK2W/ltf25-np-v0-6-2-pairs-4-bogies-oo-scale
     
    First I cleaned the bogies in warm soapy water and left them to dry. I then cut off the spares and made the suspension from sequins and 8mm rubber O rings. I glued the made up suspension onto the bogies and sprayed them with white primer.



     
    Underframe
    The rake will consist of seven inners and two outers. For the inners I cut off the draw hooks and buffers and for the two outers I left the drawhook and buffers in place. On the ends, at each end, I drilled five small holes to replicate the buffer mount holes on the wagons, and cut out part of the end beam for the kadee coupling

     
    The final step before spraying was to put the model back together (without screws) to make sure the new ends fit in place and that it all looks good :-)



     
    Next is:
    take apart again
    white primer
    rub down and spray blue
    put wagon back together, mask off blue and spray grey
    buckeye pull wire and mount end detail
    small paint details such as hopper door open levers etc.
    transfers
    varnish
     
    Regards
    Darryl
  2. daz9284
    The next stage was to put the sections back together.
     
    Firstly I glued the chassis back together and I used the parts of the cut off ends of the hopper doors to aid with strength. At the same time I cut some spare plastic that I had (used an old store card) to fit the width between the two hopper dividers and the width of the vertical hopper bay seperator (you will see what I mean in th pictures below).
     
    While the glue was setting I glued the hopper sides together, after making sure they fit the chassis.



     
    After the glue on the chassis had set I then worked on finishing the new vertical hopper bay seperator. I cut off 8mm from the bottom of the seperator and used part of it to fill in the gap on top of the flat piece of plastic that I had glued onto the chassis. IIRC I think the strips were about 30mm x 8mm but they depend on how well the cutting and glueing has gone. I then glued the vertical hopper bay seperator into place.
     
    Once the glue had set I painted the parts black to see how they looked.
     
     
     


     
    The last part for this stage is to put the parts back together to see how they look. I'm pleased to say that I'm happy with the results!
     
     


     
     
    Next is painting and transfers.
     
    I have been told that the grey WH Davis use is RAL 7042 but on a model, this looks too dark so I'm going to gamble with a lighter shade of grey.
     
    Regarding transfers I'm going to see if Railtec will make them, otherwise it will be a case of buying various packs and finishing off with making my own. I haven't found any side on pictures yet of the wagons so I'm unsure what all the labels are.
     
    Enjoy.
  3. daz9284
    Since I heard that VTG had purchased some ex FLHH HHA coal wagons for conversion to aggregate wagons, I have been waiting to see the released wagons so I could have a go. Thankfully, via a friend, I was able to get the drwings showing the dimensions of the cut 'n' shut wagons.
     
    Firsly I took the HHA apart and stripped the paint off the body sides
     
     


     
     
    The next stage was to print out the working drawing to scale to work out what I needed to do next. From the drawing I calculated that the wagon is 91mm from the end to the new centre. With this figure in hand i marked both sides of the wagon and the chassis with marks 91mm from each end and cut the middle section out.
     
    From the removed section I cut off the top of the hopper/section divider to make the new centre divider. I also cut away the ends of the central hoppers  from the sections that I want to keep.



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