Questions tagged [trains]
A popular choice among AFOLs for building their own creations, Trains are now a sub-theme of LEGO City.
186 questions
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How can you connect different types of LEGO train tracks?
this is my first post here.
I’m trying to connect RC train tracks with straight display-style rails, like in the photo. More precisely, I want to make them look seamlessly connected, even if they’re ...
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New train track elements
1st of June 2025 Lego is releasing the new train Explorers' Arctic Polar Express Train (60470). Included in this there are two new track elements. See images below.
What are the functionalities of ...
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Is the new Duplo bridge (10426) better than the old one (10872) in terms of how easily a train can pull itself up?
Is the new bridge higher / smaller than the old one? (The dimensions on the product page aren’t helpful as the new bridge has a high frame and the given height is the height of the frame not the ...
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Functionality of new purple, orange and green Duplo train action bricks
From what I can see Duplo train set 10427 will have new purple and light green action bricks. Set 10428 will have new orange, dark green and purple action action bricks.
With the current trains I have ...
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What are the technical differences between the 2018 and 2025 Duplo train bases?
I've aware that the newer Duplo train base interacts differently with the old function bricks. How does the actual train base differ from the original?
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Converting 4559 from 9V to Powered Up
Has anyone on here converted the 4559 cargo train (from 1996) to Powered Up?
I've seen similar questions, but not about the set in question. The locomotive is really small, and I would rather not have ...
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Can the Orient Express be motorized to run on standard track?
I've seen the new Orient Express (21344) set:
It does not include a battery box or motor, and it also doesn't include standard City tracks:
It instead includes custom brick-built rails for display ...
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Can LEGO City Powered Up trains be automated?
I have a LEGO City train set (60336):
The set includes a remote control as well as an app that can be used to control the train. Is it possible to automate the operation of LEGO City trains, ideally ...
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How can I build the same angles of the sleepers on Lego’s standard R40 curved track with only the hinge pieces? (Demonstration in post)
I want to achieve the same plate angles and positions on the right, without using the R40 curved track itself:
Is there any way of doing this, ideally with legal techniques and using only hinge ...
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DUPLO cargo train 10875 blue action brick has no effect
I bought my daughter Cargo Train 10875 and it all works OK with one exception—the blue action brick has no effect. The other action bricks all have some noticeable effect.
I asked LEGO to send me a ...
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Duplo 10874 & 10426 bridge compatibility
Can the Duplo Steam Train 10874
climb the new bridge in Duplo 10426 Train Bridge and Tracks?
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How can I motorize the Hogwarts Express (76423)
I'd like to motorize this train set:
What is the best way to accomplish this?
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Front (white) and rear (red) lights for train Lego 60336
Has anyone added more than one set of lights to the train (locomotive) from set 60336?
In the hub, there is just one port free, and I haven't found a set of 4 lights in one hub.
So I am curious if ...
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Duplo Steam Train sound problem
I just bought a secondhand Duplo Steam Train set but it won’t produce any sounds. I have put new batteries in it. Even when pressing the green button to switch it on it doesn’t make the startup sound. ...
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Replacement for the Rubber Rim of a 12V Train Motor
The 12V Train Motor Item No: 7865-1 needs a rubber train rim for traction. Unfortunately I could not find any new ones and the old rubber of used items dried out.
The rim must be soft and rough, but ...
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