The design is inspired by the well-known subway cube from the Vienna public transport system — a perfect add-on for young train fans who want to recreate their city railway experience at home.
No supports required
2–3 perimeters
15–20% infill is sufficient
For a better fit of the U-shaped parts, I used a Horizontal Expansion value of -0.25 mm
Use a small amount of glue to attach the pole and the U-parts securely to the cube
As you can see, I remixed the traffic light — so if you already have one of these in your collection, you can simply swap the traffic light with the cube.
If you’d like to purchase the official version, it is available in the Wiener Linien online shop:
👉 https://shop.wienerlinien.at/U-Bahn-Wuerfel-fuer-Holzeisenbahn/HUWSCH
The author remixed this model.
I took the U-Bahn würfel and modified it, so it fit on the traffic light bar.