Wooden Toy Train

A puzzle in 33 parts! No glue needed.

Original design by Nicolas Erre
https://3dwarehouse.sketchup.com/model/8f234b9aa29dd3ccf13253d0ba52c6/Wooden-toy-train

Converted from the DAE file to SVG using openSCAD and inkscape.

Adjusted sizes for 3mm plywood, all the slots are 3.1mm wide. Improved assembly of the wheels. Added a support for the loose end of the wheel cover.
The dimensions are 27 x 13 x 9 cm

A scale N version (1:160, 9mm gauge) is also included, to be made from 0.8mm Kraftplex. This comes as a puzzle card (108 x 65 mm) where all pieces are attached at one or two points.
Strong fingernails and a pair of pointy pliers are recommended tools for assembly.
Dimensions are 60 x 28 x 20 mm. Scale to 105% for an easier fit.

2019-03-31 update: fixed the pop-out connectors for the small one. Added a box for the small one.
2019-11-09 update: added FreeCAD drawing.

How I Designed This

The box was done with
https://festi.info/boxes.py/UniversalBox?FingerJoint\_angle=90&FingerJoint\_surroundingspaces=2.0&FingerJoint\_edge\_width=1.0&FingerJoint\_finger=0.3333&FingerJoint\_play=0.0&FingerJoint\_space=0.3333&FingerJoint\_width=0.3333&Stackable\_angle=60&Stackable\_height=2.0&Stackable\_holedistance=1.0&Stackable\_width=4.0&Hinge\_grip\_percentage=0&Hinge\_outset=0&Hinge\_pinwidth=0.5&Hinge\_style=outset&Hinge\_axle=2&Hinge\_grip\_length=0&Hinge\_hingestrength=1&CabinetHinge\_bore=3.2&CabinetHinge\_eyes\_per\_hinge=5&CabinetHinge\_hinges=2&CabinetHinge\_style=inside&CabinetHinge\_eye=1.5&CabinetHinge\_play=0.05&CabinetHinge\_spacing=2.0&Lid\_angle=90.0&Lid\_second\_pin=0&Lid\_second\_pin=1&Lid\_spring=both&Lid\_surroundingspaces=2.0&Lid\_edge\_width=1.0&Lid\_finger=0&Lid\_play=0.05&Lid\_space=2.0&Lid\_width=1.0&Click\_angle=5&Click\_bottom\_radius=0.1&Click\_depth=3.0&RoundedTriangleEdge\_height=150.0&RoundedTriangleEdge\_r\_hole=2.0&RoundedTriangleEdge\_radius=30.0&RoundedTriangleEdge\_outset=1&Flex\_stretch=1.05&Flex\_connection=1.0&Flex\_distance=0.5&Flex\_width=5.0&top\_edge=L&bottom\_edge=F&x=60&y=25&h=30&lid=flat&thickness=3.0&format=svg&tabs=0.0&debug=0&reference=100&burn=0.05

Added some radii and made the springs in the lid 1mm stronger.
The box came out as a tight pressfit despite the quite small burn value.
The slot for the lid was widened by 0.1mm as 3mm Kraftplex is actually 3.1mm thick.

Category: Vehicles