3.5 or 5 Inch Gauge Diesel Outline Loco Frame & Body Design
Introduction
A personal project inspired by the desire to have a sit-behind garden railway in a small garden space.
This package is ideal for hobbyists looking to build a diesel-outline locomotive for 3.5 or 5 inch gauge tracks, whether for backyard railways, club layouts, or simply for the love of engineering.
lenght 660mm
height 480mm roof to keeper plates
width 300mm
weight about 25kgs
Design Overview
The digital package includes PDF plans, DXF, and STL files to build a diesel-outline locomotive frame and body. The components are designed for laser-cutting and bending by a third-party metal fabricator.
The loco design can handle tight curves (as small as 5ft radius) at low speeds and was created with hobby-friendly engineering in mind.
What is Included with Digital Download
Frame layout in PDF, DXF, and STL formats:
3.5 inch gauge version (with a cutout for MY1016 motor)
5 inch gauge version (solid, no cutout)
(Both versions are compatible and interchangeable)
Basic body shell plans in PDF, DXF, and STL formats
Motor mounting holes compatible with
MY1016 (12V) motors
What You Will Need to Supply
Wheels, axles, and running gear
Electric or mechanical drivetrain and electronics
Take up bearings and springs (e.g. RS Online part 750 9062)
Welder for strong frame assembly
(Frames may be bolted if tapped, but welding is recommended for strength)
Angle grinder or similar tools for smoothing, trimming, or shaping parts
General workshop tools including clamps, files, measuring tools, and a solid workbench
License Summary
This design is licensed for personal, non-commercial use only.
? You may:
Build as many locomotives as you wish for your own use
? You may not:
Sell or share the plans, STL files, or completed models
Use the design for any commercial purpose without a specific license
If you're interested in commercial use, please contact Neil Hancox to discuss licensing.
Need Custom Features?
If you would like to modify the design or add special features for your own build, Neil is happy to help by prior arrangement.
Feel free to message with your requirements or ideas.
� Neil Hancox 2025. All rights reserved.
Introduction
A personal project inspired by the desire to have a sit-behind garden railway in a small garden space.
This package is ideal for hobbyists looking to build a diesel-outline locomotive for 3.5 or 5 inch gauge tracks, whether for backyard railways, club layouts, or simply for the love of engineering.
lenght 660mm
height 480mm roof to keeper plates
width 300mm
weight about 25kgs
Design Overview
The digital package includes PDF plans, DXF, and STL files to build a diesel-outline locomotive frame and body. The components are designed for laser-cutting and bending by a third-party metal fabricator.
The loco design can handle tight curves (as small as 5ft radius) at low speeds and was created with hobby-friendly engineering in mind.
What is Included with Digital Download
Frame layout in PDF, DXF, and STL formats:
3.5 inch gauge version (with a cutout for MY1016 motor)
5 inch gauge version (solid, no cutout)
(Both versions are compatible and interchangeable)
Basic body shell plans in PDF, DXF, and STL formats
Motor mounting holes compatible with
MY1016 (12V) motors
What You Will Need to Supply
Wheels, axles, and running gear
Electric or mechanical drivetrain and electronics
Take up bearings and springs (e.g. RS Online part 750 9062)
Welder for strong frame assembly
(Frames may be bolted if tapped, but welding is recommended for strength)
Angle grinder or similar tools for smoothing, trimming, or shaping parts
General workshop tools including clamps, files, measuring tools, and a solid workbench
License Summary
This design is licensed for personal, non-commercial use only.
? You may:
Build as many locomotives as you wish for your own use
? You may not:
Sell or share the plans, STL files, or completed models
Use the design for any commercial purpose without a specific license
If you're interested in commercial use, please contact Neil Hancox to discuss licensing.
Need Custom Features?
If you would like to modify the design or add special features for your own build, Neil is happy to help by prior arrangement.
Feel free to message with your requirements or ideas.
� Neil Hancox 2025. All rights reserved.