L&YR Class 28 in 4mm / 1/76 scale
This is a 4mm scale model of the Lancashire and Yorkshire Railway (L&YR) Class 28 Locomotive. Please note - the prototype photographs sometimes showed the Smoke-Box to have rivets around the rear, other times the rear and front and other times none at all. For this reason this model has been designed as the smooth type to print better and provide a better canvas. Rivets can be added by buying transfer decals that have physical relief. DCC Concepts is one manufacturer that supplies them.
The Smoke-Box Door is located in front of the engine on a sprue. under the body are the 2 different types of buffers that the Class 28's ran with, this gives you the choice of using either or substituting them with metal ones from other manufacturers without having to hack them off a buffer beam. The chimney is loose so just pop it in your chosen hole on the smokebox top to represent your chosen variation. Small dimples are designed in to the chimney centres to provide a drill grab should you wish to open it out. Best advice is to glue it home first and then drill/ream out the hole.
The Reverser Rod is located just below the boiler - this needs to be removed and joined to the left hand side of the locomotive starting at the hole in the cab sheet and finishing towards the lever in between the front Splashers (Wheel Arches).
You will need hand rail pillars or split pins and 0.45mm rod for the hand rails. To make the accurate positioning and fitting easier, holes have been slightly indented on the body; they just need drilling out.
Couplings are left for the user to decide based upon preference; just pop in your preferred coupling type. Alternatively ignore that and slot a scale coupling through the rectangular hole in the buffer beam on the body. A third option is to utilise the slightly indented holes on the bottom of the chassis at the front by drilling them out; this is to locate a home made 'goalpost' from Brass or Nickel Silver rod that is compatible with Tension Lock Auto-Couplers.
To fit the chassis to the body, the rear simply slots in the body at an angle. The front is fixed via a screw or bolt that taps easily and is all that is needed, a nut can be glued in place inside the Smoke-Box Saddle if desired. This body shell can be fixed to several Ready To Run (RTR) chassis with a little tweaking, alternatively a specially designed chassis is also available separately either in 00 or P4..
Please see the Chassis themselves for more information.
For wheels, axles, crankpins etc
Alan Gibson is a great resource
...as is Markits
For Motors and Gearboxes, High Level are recommended.
For the L&YR Class 28 and Mogul Experiment, to allow your model to be motorised without having to hack away at the underside of the firebox or boiler as is common with many of kits depending what parts you use, a 'Roadrunner Compact +' Gearbox and a 1220 Mashima Motor from High Level will fit nicely, although it is rather small and may lack power if the trains are too long. If using this combination the gearbox sides will need to be packed width ways with plasticard or similar, these components were used in the research and development trial builds.
EDIT: Future builds have shown that a London Road Models GB4 Single stage Motor Mount (Gearbox) fits better, is cheaper and quicker to build. As with all loco kits the choice is entirely yours though.
For crank pins, hand rail rod/wire and pillars, washers, bearings and other small sundry items Mainly Trains is a good website to visit.
But of course you can use whatever suits your needs and preference best,
the above has been typed out to hopefully aid you should you be new to kit building. The advantage of these 3D printed kits is 90% of the work is done for you, both on the body and the chassis.
Due to printing tolerance issues the whistles have had to be removed. Whistles with printable geometry are now available from SCC also - please look in the spares section.
For a video series on building SCC locomotive kits...
For those of you who like to anthropomorphize locomotives you can obtain quality facial expressions from South Tyneside Models https://www.shapeways.com/shops/seansstuff?section=Character+Type+5+Faces+-+Size+2&s=0