In the past scratch building wagons was commonplace but has diminished as so many wagon kits and ready to run wagons are now available. However, the advent of low cost 3D printing has opened up the possibility of creating complex models of items not yet available from the trade.

• Wagon building - notes on the design and construction of wagons, with a focus on the running gear (wheels, axles and suspension), buffing and coupling.
• Minimum weights - a guide to recommended minimum weights for rolling stock to ensure good running
• 3-link couplings
• Autocouplers

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