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Diagram3D Products: Instructions for our products can be found within the product description.  Read the instructions (and watch our video) before ordering and there will be no hidden surprises.

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4mm scale

4mm scale is the most popular modelling scale in the UK and is traditionally associated with "OO" gauge as well as "EM" and "P4".

GWR Siphon O4 body kit
This kit is based on the most numerous type of six wheeled GWR siphon, designated O4. There were a number of types and variants of the GWR milk van. The vehicles were modified over their lifetimes. In general it is advisable to have access to a good reference work with photographs.Apart from articles in the model railway press (Eg: Model Railway Journal Christmas. 1985 and January/February 1986) an entire book has been written on the development of these vehicles. (“Great Western Siphons” by Jac..
£20.00
GWR Siphon O4-1777 body kit
GW Milk Van Number 1777 is an interesting and unique vehicle.  This vehicle was adapted from a standard milk van (type O4).  The vehicle has louvered sides and is a presursor of later vehicles designed with louvered sides. In other respects it is similar to the standard O4 type vehicle. This vehicle is described, with a drawing, in the book “Great Western Siphons” by Jack N. Slinn, Pendragon books 1986 (in association with the Historical Model Railway Society). A photograph of this veh..
£20.00
NBR Perishable Goods (Fish and Milk) Van.
This kit is modelled on a perishable goods van which was used for the conveyance of fish and milk by the North British Railway (NBR). It was a six wheeled vehicle and is described in detail within the book “LNER Wagons Volume 3”  by P. Tatlow ISBN 978 1 905 184 56 9. (Pages. 58-59). A difficult and tedious task encountered when modelling rolling stock is the preparation and cutting out of the windows, droplights and panels. This kit reduces the tedium, complication and labour associated..
£16.00
NBR Perishable Goods (Yeast and Fruit) Van.
This kit is modelled on a perishable goods van which was used for the conveyance of Yeast and Fruit by the North British Railway (NBR). It was a six wheeled vehicle and is described in detail within the book “LNER Wagons Volume 3”  by P. Tatlow ISBN 978 1 905 184 56 9. (Pages. 58-59). A difficult and tedious task encountered when modelling rolling stock is the preparation and cutting out of the windows, droplights and panels. This kit reduces the tedium, complication and labour ass..
£16.00
NER First Class carriage (Diagram 68)
This carriage was one of a series of 32ft six wheeled carriages which were designed and built by the North Eastern Railway in the latter part of the 19th Century. They used a standard underframe and replaced earlier vehicles. This model represents a first class carriage (diagram 68). The NER inventory contained over fifty similar vehicles in the 1890's. The design of this model features a detachable roof. A difficult and tedious task encountered when modelling rolling stock is the preparation and ..
£18.00
NER Five compartment third class carriage (Diagram 15)
This type of carriage was the most numerous vehicle produced by the North Eastern Railway (NER). Approximately 1000 examples of this type of carriage were produced from the mid 1880’s until 1895. A drawing of this vehicle exists at the National Railway Museum (LNER drawing 1829D, formerly NER drawing 68a). This drawing was referred to during the design of this model. Originally, the livery would have been NER maroon with yellow lining. Roofs were white when new. The design of this model features a ..
£18.00
NER Guards Van (Diagram 21)
This carriage was one of a series of 32ft six wheeled carriages which were designed and built by the North Eastern Railway (NER) in the latter part of the 19th Century. They used a standard underframe and replaced earlier vehicles. This model represents a Guards van, diagram 21. The NER inventory contained about two hundred similar vehicles in the 1890's. They were originally designed for passenger traffic, some were used for milk traffic and others passed into goods service.  Originally, the liver..
£18.00
NER Luggage composite carriage (Diagram 9)
This carriage was one of a series of 32ft six wheeled carriages which were designed and built by the North Eastern Railway in the latter part of the 19th Century. They used a standard underframe and replaced earlier vehicles. This model represents a composite carriage with a central luggage compartment, diagram 9. The NER inventory contained over 200 similar vehicles in the 1890's. The design of this model features a detachable roof. A difficult and tedious task encountered when modelling rolling ..
£18.00
NER Third class luggage carriage (Diagram 13)
These carriages were very similar to Diagram 15 thirds, see our produuct NE04-D015. One passenger compartment was replaced by a luggage compartment. A drawing of this vehicle exists at the National Railway Museum (LNER drawing 1830D, formerly NER drawing 71a). This drawing was referred to during the design of this model. Originally, the livery would have been standard NER maroon with yellow lining. Roofs were white when new. The design of this model features a detachable roof. A difficult and tedious ..
£18.00
NER Van Third (Diagram 20)
This carriage was one of a series of 32ft six wheeled carriages which were designed and built by the North Eastern Railway in the latter part of the 19th Century. They used a standard underframe and replaced earlier vehicles. This model represents a Guards can with two third class compartments (diagram 20). The NER inventory contained about a hundred similar vehicles in the 1890's. The design of this model features a detachable roof. A difficult and tedious task encountered when modelling rolling ..
£18.00
LNWR 3 compartment tricomposite coach
This model of an early LNWR tri-composite carriage is based on a vehicle which was acquired by the Mawddwy Railway from the LNWR. The vehuicle was photographed around 1900 when passenger services were withdrawn. The photographic evidence gives an excellent idea of the construction of this vehicle. This is a lasercut kit of a historical railway carriage of the mid 1800's, designed and produced in-house by Design3D. The kit is manufactured in MDF and card with clear acrylic glazing.  It is supp..
£17.50
LNWR 4 compartment third class coach
This is a lasercut kit of a historical railway carriage of the mid 1800's, designed and produced in-house by Diagram3D. The kit is based on information gathered about a grounded coach body by the LNWR society. This kit is also available in 7mm scale. The kit is manufactured in MDF and card with clear acrylic glazing.  The kit is supplied with printed instructions. The construction takes advantage of the strength of MDF combined with the detail of the card components to give a sturdy result. T..
£17.50