Scratch-Building Irish Railway Models — A Practical Guide

Why Scratch-Building Matters for Irish Modellers

British modellers can walk into a shop and buy a ready-to-run replica of almost any locomotive class that ran from 1930 to the present day. Irish modellers cannot. The commercial RTR catalogue for Irish outline — while growing thanks to Irish Railway Models and Accurascale — still covers only a fraction of what actually ran on the Irish network, and essentially nothing from before the 1970s in OO, or from any period in OO9 narrow gauge.

This means that if you want to model the steam era, the transition era, the GNR(I), or any Irish narrow gauge line, you will be building vehicles yourself. This is not a disadvantage — it's what makes Irish layout modelling distinctive and what guarantees that your finished layout is unique. No two scratch-built layouts are the same.

Essential Materials

Plasticard (Styrene Sheet)

Plasticard is the primary material for Irish scratch-building — it's cheap, easy to cut and bond, takes paint well, and can represent almost any surface. Stock a range of thicknesses: 0.25mm for fine details and window glazing, 0.5mm for coach body panels and light structural work, 1mm for floors and structural members, 2mm for heavy structural elements and wagon bodies.

Textured plasticard — brick, stone, planking, corrugated iron — is particularly useful for Irish station buildings. Slater's Plastikard produces an excellent range of embossed sheets including random stone (ideal for Irish limestone station buildings) and slate (for roofs).

Brass Strip and Rod

For handrails, lamp irons, buffer heads, coupling hooks, and structural details that need strength and solderability. 0.5mm brass rod for handrails; 0.8mm for lamp brackets; 1.5–2mm for buffer shanks. Brass strip in 2×0.5mm and 3×0.5mm for running plates and framing.

White Metal Castings

Chimney tops, dome covers, buffers, lamp brackets, and cab fittings are available from specialist casting suppliers (Mainly Trains, Markits, and others). White metal castings give detail that plasticard alone cannot match — the slightly soft, warm surface of white metal takes paint and weathering extremely well.

3D Printing

Consumer FDM printers (Bambu Lab, Prusa) have made custom Irish model parts accessible for the first time. An FDM printer at 0.1mm layer height can produce acceptable coach bodies, wagon sides, and loco body shells at OO9 scale — the layer lines need sanding and filling but the basic form is achievable. Resin printers (Elegoo Saturn, Anycubic Photon) produce finer detail suitable for OO-scale locomotive bodies and coach roofs.

STL files for Irish prototype models are still scarce but growing — check the 009 Society community and Thingiverse for narrow gauge subjects. For standard gauge, some MRSI members share files informally.

Building a Coaching Vehicle — Step by Step

A four-wheeled or bogie coach is the best first scratch-build project: no moving mechanical parts, relatively simple geometry, and immediately adds a uniquely Irish character to any layout.

Step 1 — Scale drawings: Find a scale drawing of your chosen vehicle. The National Railway Museum (York) holds drawings of some Irish stock; the MRSI and Irish Railway Modeller community are the best sources for prototype drawings. If no drawing exists, work from photographs using known dimensions (typical Irish coach width, door heights, window spacings).

Step 2 — Cut the body shell: From 0.5mm plasticard, cut the four body panels (two sides, two ends). Mark and cut window apertures with a sharp No.11 scalpel blade. Cut multiple passes rather than one heavy cut — Irish coaches typically have square-cornered windows, which is forgiving for a beginner.

Step 3 — Assemble the box: Bond the four panels with liquid polystyrene cement (MEK, or Humbrol Liquid Poly). Use right-angle jigs or rubber bands to hold square while the bond cures. Allow 30 minutes before handling. Add a 1mm plasticard floor.

Step 4 — Add the roof: A simple arc roof can be formed by soaking thin plasticard in hot water and bending it over a suitable former (a tin of appropriate diameter). Once dry it holds the curve. Bond to the body with more liquid cement.

Step 5 — Detail: Add window beading (thin strips of 0.25mm plasticard), door hinges (punched from thin brass sheet), ventilators (white metal castings or drilled plasticard), and buffer stocks (white metal castings). Drill holes for grab handles (bent 0.5mm brass rod).

Step 6 — Underframe: Mount the body on a commercial bogie (Farish N-gauge bogies work well for OO9 narrow gauge; Hornby OO bogies for standard gauge). Build up the brake rigging from brass strip if you want detail under the floor.

Step 7 — Prime and paint: Spray an automotive grey primer (Halfords or Tamiya rattle can). Identify any defects — fill with Squadron Green Putty or similar, re-prime. Apply main colour by brush or airbrush. Add lining with a ruling pen or fine brush. Finish with a clear varnish (matt or satin as appropriate), apply waterslide lettering transfers, and seal again.

Building Irish Station Architecture

Irish railway station buildings are distinctive and underrepresented in commercial kits. The typical rural Irish station was built in local stone — limestone in the midlands and west, granite in Wicklow and parts of Ulster — with slate roofs, small-paned sash windows, and modest canopies over the platform face.

Slater's random stone plasticard (ref. 0415) is an excellent match for Irish limestone construction. Cut to the required wall panels, add window and door apertures, then clad with roof slating sheet (Slater's 0418). The key Irish detail is the chimney stack — rural Irish station buildings almost universally had prominent stone chimney stacks for the waiting room and stationmaster's office fires.

Platform surface: Irish platforms were typically concrete in later years, or tarmac, or compacted gravel on smaller stations. A wash of grey acrylic over plain plasticard, followed by a warm brown drybrush, captures the worn concrete look well. Scatter very fine grey ballast along the platform edge.

Modelling Irish Locomotives — OO9 Narrow Gauge

A scratch-built narrow gauge locomotive is the most ambitious Irish modelling project, but the small size of 3ft gauge engines makes it more achievable than it sounds. Most Irish narrow gauge locos are small tank engines — 0-4-0T, 0-6-0T, 2-6-2T — with relatively simple bodywork.

The approach is to start with a commercial OO9 mechanism and build a body shell around it:

Mechanism choice: Minitrains 0-4-0 and 0-6-0 chassis (chassis only available from some suppliers) are the most used OO9 bases for Irish prototypes. The Minitrains mechanism is compact, reliable, and fits inside most Irish narrow gauge loco bodies. For tender locos, a Kato chassis can be used.

Body construction: Build the boiler from a plastic or brass tube of appropriate diameter. The smokebox wrapper, footplate, cab, and tanks are all plasticard. The chimney, dome, safety valve cover, and whistle are white metal castings or 3D-printed. Work from prototype photographs, measuring proportions relative to known dimensions (typical cab width, footplate height above rail).

Final finish: Plain black with red buffer beams covers almost all Irish narrow gauge prototypes. The plainness means that weathering does all the work — add rust runs from the firebox, oil stains on the footplate, and smoke discolouration on the boiler top. A well-weathered plain black loco is far more convincing than a poorly-weathered lined one.

Where to Get Help

Scratch-building is best learned in company. Irish clubs — the MRSI, SDMRC, and others — have experienced scratch-builders among their members who will share techniques, lend tools, and critique your work constructively. An evening at a club workbench learning plasticard technique from someone who has been doing it for thirty years is worth more than any number of YouTube videos.

The 009 Society has a postal kit library and a network of advisers specifically for narrow gauge subjects. Membership is very affordable and the community is active and welcoming.