Gauge 1 Diesel Multiple Unit

This page last updated: 20 January 2018.

Having begun the construction of my front garden railway on a postage stamp (intended to reflect the Rhymney Valley line in south Wales from around 1964) at the start of 2018 I needed to resolve how it carries passengers.  The Rhymney Valley line was converted to diesel multiple units in around 1958 and, with the help of Noel on the WRRC forums, the immensely detailed www.railcar.co.uk, and my memories, I determined that I needed a class 116 DMU, gangwayed (i.e. converted to have a corridor running all the way through) in all blue livery except for yellow-painted ends.  However, no-one makes such a beast so I had to construct one myself.  I began work from these drawings:
Stuart Mackay of www.railcar.co.uk helped me with additional pictures and Chris Moxon of preserved.railcar.co.uk helped me get in contact with the owners of preserved class 116 DMUs where I could make proper measurements and take detailed pictures.

For the modelling part, I joined the Gauge 1 forums to ask for advice.  David Halfpenny pointed me towards David Leech, a Canadian modeller who has a retirement business scratch-building coaches and has attempted to build a Class 121 DMU using 3D printing.  David Leech has given me lots of great advice on the use of 3D printing, the more traditional bent aluminium sheet method and many, many other aspects of Gauge 1 coach building.  I also purchased a copy of "Carriage Modelling Made Easy" by David Jenkinson which describes another method for making coaches.  I decided to 3D print the ends and make the body of folded aluminium sheet.  Drive will be provided by a couple of fosmotors on one bogie, the power and control for which David Leech believes can be hidden underneath the DMU.  Here's what I think I have to do:
Having never done this before lord knows how it is going go turn out.  But I have to start somewhere.


Drawing

I have begun collating the dimensions of the vehicle.  Not having arranged a visit to measure/photograph a real class 116 DMU yet, there remain many gaps in my knowledge.

Motor
                Open Second Body
Cabin dimensions
Motor Open Second Brake body
Motor chassis
Trailer
                Composite body

Trailer chassis


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