Questions tagged [trains]
A popular choice among AFOLs for building their own creations, Trains are now a sub-theme of LEGO City.
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LEGO Express 60197 displays low battery
Using new batteries to power the controller - however on connecting the app using Bluetooth the status immediately shows low battery.
Uninstalled the app and reinstalled it with new set of batteries, ...
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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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How to convert Passenger Train 7745 from 12V to Powered-Up?
I would like to convert the High-Speed City Express Passenger Train Set 7745 from the 12V track system to the Powered-Up system.
It seems to be trivial to exchange the old wheels with the new wheels, ...
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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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Why does my 60198 train get lots of wheel spin?
I was running my 60198 train with the 60197 carriages attached (carriages from 60198 also on the train). My train has started to get lots of wheel spin even while on flat ground. What can I do?
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How to power on and adjust speed for a PU Train 88011
I'm doing a project for my kiddos.
I'm trying to find the schematics of a lego train motor 88011, I want to control them using an ESP32 through a telegram bot.
I have the ESP32 and the telegram bot ...
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Can 9V train motors be linked and work together via the top power stud connection?
I'm building a MOC based on the 10219 Maersk Train, but going for the classic track power 9V system given the removal of need for batteries and slowly increasing availability of new 9V parts from ...
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Why was the monorail system discontinued?
I'm a casual Lego enjoyer and decided to research some old sets and found out about the old monorail system.
My question is why was it discontinued? It was a pretty neat system and I could see ...
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Kazi train - struggles to run, maybe due to weight
I've ordered 2 Kazi trains on aliexpress. Seemed like a nice set with some tracks for my kids. As seen below it's a set where the power box is a separate part and it runs a motor that connects to the ...
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Convert 9V train to Powered Up
This is a follow-up from question "Can I convert my train 9V 4563 to the Power Functions motor?", now that Power Functions motors have been phased out in favour of Powered Up motors.
How can ...
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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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Identify this part, looks like a black handheld controller
Does anyone have information about this LEGO item?
It appears to be an infrared controller. Maybe for an old LEGO train.
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LEGO Duplo cargo train - traction problem on bridge
I bought my son a 10875 cargo train. The train is great for playing, but I have a problem with crossing the bridge. I saw that this is common problem with 10875 and 10874 LEGO Duplo trains, so I would ...
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Do Duplo train cars with two female ends exist?
Most Duplo train cars have a male and a female connector, such as Duplo Car Base 2 x 6 with Red Wheels with Fake Bolts and Open Hitch End.
Since most tractors, in the widest meaning of cars meant to ...
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Is there any difference in the power, wheel, and track technology between 2018 trains and 2022 trains?
LEGO came out with 60197 City Passenger Train and 60198 City Cargo Train in 2018. Much more recently they released very similar sets 60337 City Express Passenger Train and 60336 City Freight Train. ...
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Railway track layout - is there a method to say if track layout meets up
I'd 2 circles of original blue railway track, lost 1 inner, bought mixed batch of track off eBay, as more inner than outer bought more track & to get discount 12 outer & 4 inner to bring N° of ...
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IR remote 8879 - cannot control speed of the motor
I got the 7938 train set for my kid.
I hook up the battery to the receiver and try the IR remote 8879 with it.
The motor starts running/spinning, but I can not control the speed with the orange "...
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Where can I get replacement battery connectors for old Lego Duplo Train?
I have the same Duplo Train that Pieterjan posted a picture and video of in September ('Old Lego duplo train not working on batteries'). In my case, it is clear that the battery connectors are ...
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What piece is this? It's a hard one, and a very small one. It's 2x1 I believe, and it could possibly be an accessory
This is the piece I'm looking for, because I'd like to build this microscale train myself. It may very well be the handles of two levers glued to the rest of the train, but I really don't want to ...
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Do Duplo trains fit Megablock train tracks?
Do Duplo trains fit Megablock train tracks (given in the picture)?
Note that all the Megablock 2x2, 2x4, etc blocks fit Duplo. I just have never heard about Megablock train tracks' compatibility.
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Motor problems in 60051
The motor in my High Speed Passenger Train set (60051) has stopped working properly. I just put brand new batteries in and it acts just like if they were worn. Moreover, the little brown capacitor ...
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Old Lego duplo train not working on batteries
I've recovered my old lego duplo set from the attic, and tried to get the electric train working again. After inserting fully charged batteries, the train does start, but it's unable to pull even a ...
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Minimal mine track
I want to create a mine scene on a 32x32 baseplate. I want to run a train track across the front, and then about 12 studs into the mine. Then, I want to build a couple simple mining carts on the ...
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Motorizing Crocodile Locomotive set 10277 - are there any sets that include hub & motor I need?
Crocodile Locomotive can be powered up by using 1 x 88009 and 1 x 88013. Reviews on hubs and motors strongly suggest it is better, financially, to buy them as part of the sets, not separately.
Is ...
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What are black sausage pieces used for in Crocodile Locomotive set 10277?
After assembly I have these 5 pieces left. Should I have put them somewhere? I can't find any missed step that would use them. So why are these there at all?
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Train with two Powered Up hubs
I'm building a motorized train. The locomotive has two Powered Up train motors, one at each end. However, no matter where I place the hub inside the locomotive, the wires on the train motors are too ...
user18358
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How tall is a Lego train on a track?
I cannot currently access any Lego trains, and the product range offered in the trains category in these years is rather ... disheartening. Nonetheless, I do not rule out the possibility that things ...
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Train level crossing using 2021 road plates
I'm interested in integrating a train level crossing into a city layout using the new road plates, but I've been struggling to figure out the best way to do this. Here's an example level crossing for ...
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Remote control for a battery operated train
I have a battery-operated Christmas train and would like to make it remote-controlled but don't know what I need to buy for a transmitter and receiver. Could someone please tell me?
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12V LEGO train tracks splinter
I have an older 12V LEGO train (several actually) but of course the rubber tires wore out long ago.
The trains still run quite well (I even used them as a motor parts in some Technic designs), but the ...
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Options for powering Winter Holiday Train
Is there a way to make the Winter Holiday Train powered without the IR receiver or Remote Control?
I only set it up at Christmas time and just want it to go around the track at the one speed. I want ...
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Does remote control 8879 work for winter holiday train?
Can anyone tell me if the remote control 8879 will actually stop and start the 10254 Winter Holiday Train set?
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Lubricating train axles - which oil to use?
I have a lot of old (80s grey era and 90s 9v) trains. Some of the wheels squeak and many have quite a bit of friction. Sometimes this friction causes the locomotive to detach from the rollingstock ...
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Duplo 10874 engine lacks sound without app
I have inherited this set which works perfectly apart from the fact that there is no sound from the engine. It clearly reads all the colours on the action bricks because, when used with the app, the ...
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Looking for older conducting train tracks
I have an old 9V era (1991-2006) train set that has conducting tracks. Is there a place that I can buy conducting tracks? Obviously I have trolled eBay, Amazon and internet without success.
I can buy ...
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Repairing a 12V switch motor
My son caused me to dig up my old 12V lego trains. Surprisingly they mostly work, except for one part:
https://www.bricklink.com/v2/catalog/catalogitem.page?P=70026&idColor=9#T=C&C=9
This is ...
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Can the Hogwarts Express train be motorised? [closed]
Can a Power Functions motor be fitted into the LEGO "Hogwarts Express" train? I have a spare motor and battery box and would like to fit them into this train.
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Train track design [duplicate]
I have some old lego train tracks from 1984 set: 7715 and I would like to use them with
my latest Lego train set: 60197 to increase the size of my layout, are these tracks compatible?
or can they be ...
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60197 Passenger Train control problem
Weird problem here.
My son has had the 60197 train for about a year and I decided to try out the powered-up app for the first time today.
After what seemed to be some kind of software update, which ...
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Choosing scale for train models: what scale is "L-gauge"?
So, after being a LEGO fan for 40+ years, I'd like to try my luck at building some scale models of train sets (for example, an ICE 2). In planning my build, I ran into some difficulties or doubts ...
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PF: One battery block, one IR receiver, two motors on same port
I have a heavy train with Power Functions. Now I want to use two train motors on the single loco. But as I understand, this is not possible with original LEGO parts? Do I need something like a three-...
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Lego Duplo Train Track Switcher washable? / Best way to clean them?
I've found some pretty old Lego Duplo train track parts, that I'm looking to sell on Ebay.
As these are pretty old and caked with dust, I wanted to used my usual method I usually use to clean all ...
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LEGO train 60198 isn't working
Battery box on my LEGO train 60198 is flashing green and orange, then after few seconds it suddenly turns off itself.
I've tried resetting it by pushing the button on the train until it turns purple,...
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Do Thomas the Tank Engine Duplo trains seat figures?
Lego made Thomas the Tank Engine licensed Duplo sets in the 2000's decade at the same scale as current Duplo trains. Do the Thomas trains seat Duplo figures like current trains do? I've seen some ...
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How to disassemble the propulsion wheels of the LEGO/DUPLO train engine base part# 28743 drivetrain?
I have a push and go motor, also known as Hub No5 model also known as engine base part #28743
The issue I have is that the train can not climb the bridge anymore, unless using the locomotive alone ...
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Does Power Functions 88002 fit a gray-era train and run on gray-era tracks?
Is the Power Functions Train Motor (set 88002) the right height for a gray-era train (set 7745)? Does the Power Functions Train Motor run OK on gray-era tracks?
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Schematic and program listing of 28743?
Looking for more info on circuit board of 28743. E.g. what is the processor used? Would like to be able to reprogram the chip. E.g. program the train to stop on the third STOP directive strip, or ...
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Will Duplo trains fit onto a regular 6 stud LEGO track?
There's a thread here establishing that regular LEGO trains arguably fit onto Duplo track, but have trouble with underbelly clearance.
What about the opposite? Will a Duplo train fit onto six-stud ...
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Looking for a way to connect SG90 servo motor to Lego Technic hole in a brick, in order to control Lego train track switch
After looking at this question:
Can I remotely control the points on PF train tracks?
I got the idea of controlling the train track switch handle using a servo motor that will be able to move the ...
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Will the Duplo train track extension set 10872 work with Duplo train set 2700?
I am thinking about buying the Duplo train expansion set 10872 Train Bridge and Tracks for my niece, but her primary Duplo train set is actually a vintage 1983 2700 Freight Train set from her father's ...
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