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Mini Train - Functional China Diorama 3D Printer File Image 1
Mini Train - Functional China Diorama 3D Printer File Image 2
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Mini Train - Functional China Diorama 3D Printer File Thumbnail 1
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Mini Train - Functional China Diorama

BamBam Design avatarBamBam Design

July 9, 2025

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Description

Mini Train - Functional China Diorama

And here’s another new mini train diorama — we’ve already reached diorama number 12!
This time, I chose China as the theme!
The train passes by the Great Wall of China and Tiananmen Square (天安門廣場 / 天安门广场) with the Great Hall of the People(人民大會堂 / 人民大会堂), and ends at Beijing Main Station. For the train, I took inspiration from the Qinghai–Tibet Railway.
I hope that’s the correct name.
I based everything solely on reference images — of course, the scales aren’t 100% accurate, but that’s intentional.

As with the previous dioramas, you can turn the hand-wheel on the outside to let the little train drive forward.

Watch in Action on YouTube 

 

The new Qinghai–Tibet Railway is compatible to the previous designs.

 

All printed parts are designed to get an good result with a 0,4 nozzle and with minimal color changes to reduce waste.

Boost Me

→ Have a look at the great Motorization solution!

More is coming…check the “Mini Train Collection” and leave a follow👍

 

Mini Train Collection

Printing:

Following PLA Basic Filaments are used 

Silver 

Brown

Black

Beige

Mistletoe Green 

Bambu Green

Yellow (Train)

 

Other colors are possible of course, look what you have in stock. 

 

I think it could be easy done with single color, if you want to color from hand. 

 

I printed with a 0,4mm nozzle! Iam very pleased with the result, but you can try a 0,2 nozzle as well.

Assembly:

You need 6pcs round 4x2 magnets for the functional assembly.

Insert 3pcs  Magnets in the train and wagons with same polarity
Insert 3pcs Magnets in the 3 pins all with same polarity but opposite direction than before! The Pins must attract the train!
Insert the 3 pins now and use the train to hold them in  place.
Arrange pins and magnet approximately like this
Press the wheel in position. Check if all 3 pins are catched from the hand-wheel.
  • Terrain on top of the base and press trees in the holes. You can add a bit of glue to combine.
  • Place the train to the magnetic position and have fun 😀👍

I hope you like this little project.

If you want to support me, you can simply follow, boost & like the model.

 

You want to sell printed parts from my designs? Commercial license you get at my Makerworld profile or on Patreon:

https://www.patreon.com/BamBamDesign/

License:

Standard Digital File License

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