The Forum for Gauge 3 Model Trains

Rolling Stock => Carriages & NPCS => Topic started by: John Candy on Nov 17 2025 14:27

Title: Feeling squeezed? .... The Concertinas are coming!
Post by: John Candy on Nov 17 2025 14:27
At the print-testing stage are the STL files for GWR "Concertina" 70ft corridor stock.
The first two types are C27 All Third and D43 Brake 3rd.

Screenshots of the files as rendered from OpenSCAD are attached and photos will appear as the printing progresses (the bolection mouldings are separate inserts and not shown in these shots) .

If these are carriages you would buy and would like to see offered as kits, post a reply here or email Anthony Terranova anthonyterra@hotmail.co.uk who is licensed to produce kits from my STL files.

If there is interest, I will expand the the available types (I am also considering "Dreadnought" stock).

Dean clerestory corridor stock (3 diagrams) and corridor "Toplights" (5 diagrams) are  already at an advanced stage.

John

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Title: Re: Feeling squeezed? .... The Concertinas are coming!
Post by: John Candy on Jan 23 2026 06:58
After a couple of months of delay, working on three additional LNER Gresley coaching stock (D4, D23 and D212) and several BR standard wagons (all intended for eventual release as kits by New Land 3D) I have now returned to printing the GWR Concertina stock.

The sides of the C27 All Third and D43 Brake 3rd are shown in primer. It is very difficult to photograph such long items indoors and under artificial light, so only close-up shots of sections of each type are shown, to highlight the detail. These are 70ft carriages (945 mm in G3) and each side consists of five modules, so as to fit, comfortably, onto a 250mm printer bed. The modules include the doors printed integrally, leaving just the bolections around the glazing to be printed separately and inserted into the openings.

Gauge 3 Society members wishing to print these on their own printer for personal use may request a download link from jc@gauge3.info

C27b.png
C27c.png
C27d.png
C27e.png
D43a.png
D43b.png
D43c.png
D43d.png
D43e.png
Title: Re: Feeling squeezed? .... The Concertinas are coming!
Post by: IanT on Jan 23 2026 08:52
Very nice John!

IanT