00 Scale Rail Tractor

A humorous little engine, this model is of a freelance rail-mounted tractor.  Often home-made, these unusual little units were common world-wide, particularly in industry for shunting and other light duties.  Due to its size it is unpowered, but can be ‘motorised’ by coupling to a power source such as: https://www.shapeways.com/product/F9H5PPBEC/00-scale-open-truck-motorised

IMPORTANT: while most models available here have been pre-tested and known to work, this scratch-aid has not been printed/tested by myself, so while the measurements appear correct it is considered strictly experimental.  

(Note: various materials are provided, however, WSF and BSF will require more preparation for smooth painting that FUD and FED.) 

The following additional parts need to be sourced separately to complete: 
Wheels (15mm diameter with flange; c.12.5mm without) for example Hornby wagon wheels R8098 http://www.hattons.co.uk/7287/Hornby_R8098_Metal_spoked_wheels_on_axles_10_axles_/StockDetail.aspx
Coupling (at the builder’s discretion)