Questions tagged [duplo]

LEGO Duplo bricks are designed for young children aged 1½ to 5 years. Duplo bricks are twice the length, height and width of traditional Lego System bricks.

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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 ...
Adam Ralph's user avatar
3 votes
1 answer
283 views

Duplo train engine base part - replacement DC motor - which part to buy?

I have two Duplo train base parts, one that works, one that I want to repair, as it does not work (connects via Bluetooth, but in the end motor does not move). I disassembled that and figured out the ...
Kara Mustafa's user avatar
4 votes
2 answers
226 views

Steam train 10874 draining batteries in seconds

Santa brought my son a new Steam train 10874. We assembled it and put brand new 4xAAA (1.5V) batteries. The train works for 4-5 seconds and then stops. Connected it to the app and it shows batteries ...
jamall's user avatar
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3 votes
1 answer
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DUPLO train engine base part# 28743 engine is not working

I've went through all of the steps here: How to disassemble the propulsion wheels of the LEGO/DUPLO train engine base part# 28743 drivetrain? which was a great learning exercise but unfortunately it ...
user3779502's user avatar
9 votes
2 answers
974 views

Identify Duplos that were in the Red Bunny Purse

Can anyone tell me what Duplos were included in the Red Bunny Purse? I believe that was purchased in 1984.
GAILZ's user avatar
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2 votes
0 answers
118 views

How do you open this thing without damaging it?

It's a 9008 DUPLO Activity Set from 1986. Looks like this on all the boxes.
Beate 's user avatar
  • 21
5 votes
1 answer
625 views

Identification of rare LEGO DUPLO piece

Can you please help me identify what is this LEGO DUPLO cube? I received it inside package of old cubes I bought. It has shorter studs than normal ones, seems quite old. Material and its firmness ...
Dorregaray's user avatar
25 votes
2 answers
6k views

Has any non-Duplo LEGO set included Duplo components?

It’s not uncommon for LEGO Technic components to be included in LEGO builds - especially where motion or interaction is needed. Has the same ever happened with a Duplo component being included in a ‘...
Neil Tarrant's user avatar
6 votes
2 answers
1k views

Help identifying 4 weird Duplo pieces

I don't collect Duplo so I'm not familiar with a lot of the pieces they have. Here are the four that stump me: 4x10x3-ish freight hopper: I searched "duplo hopper" in BrickLink but only got ...
Toomany Bees's user avatar
4 votes
1 answer
1k views

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 ...
Oluka's user avatar
  • 41
5 votes
1 answer
222 views

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 ...
Maxime's user avatar
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8 votes
1 answer
885 views

Adapters for Lego Duplo and Mega Bloks

Similar to this question I am interested in combining Duplo Lego with Mega Bloks. I want to have full compatibility, i.e. being able to put Duplo on top of Mega Bloks, which requires some type of ...
Kjara's user avatar
  • 181
2 votes
1 answer
256 views

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 ...
Andrew Plasom-Scott's user avatar
4 votes
1 answer
316 views

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.
Thang Tran's user avatar
4 votes
1 answer
118 views

How can find which Duplo sets, featuring car base, are currently sold in France?

My son have been playing a lot with my old LEGO at his grandma's, and I would like to buy him some to play at home. I have tried to figure this out on my own, but I am stuck :( I have read inside the ...
Maxime's user avatar
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7 votes
1 answer
1k views

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 ...
Pieterjan's user avatar
  • 171
9 votes
3 answers
1k views

Duplo block with facecloth or towel on

I'm currently kitting out a new bathroom for my Lego son, and I would like to modify a set of drawers, including using Duplo pieces as labels for the drawer contents. I've found Duplo blocks for ...
SPPearce's user avatar
  • 191
4 votes
1 answer
250 views

How to generate Duplo instructions?

I am aware of how to create a Lego model and generate instructions using LDD and Stud.io However, I am having trouble figuring out how to do this for Duplo. How does one do this? EDIT: @alex yes I ...
csbuilder's user avatar
3 votes
1 answer
3k views

Lego Duplo 10508 train does not pull up the bridge

I tried new batteries, disassembled it, and greased it. The engine wheels seemed a bit sticky due to something sticky inside that got there at some point. I put some WD40 to make it work better and ...
TMC's user avatar
  • 31
2 votes
2 answers
2k views

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 ...
Lindsey Philpot's user avatar
8 votes
2 answers
652 views

Why are there always holes in Duplo bricks?

For some reason, all the Duplo bricks that exist out there have holes in their studs. I haven't seen a Duplo brick that doesn't have holes in the studs, and I doubt such thing even exists. System ...
mindstormsboi's user avatar
5 votes
0 answers
121 views

How do I fix a loose joint between the top and bottom of the digger base?

How do I repair a loose-fitting joint between the top and bottom of the Duplo digger base? It has been used for only about a year. Is the wear more likely on the top or the bottom piece?
Duncan DJ's user avatar
9 votes
0 answers
324 views

Are LEGO Quatro compatible with larger bricks? Soft Bricks or other?

There is a nice discussion here on LEGO+Duplo+Quatro compatibility. I posted what I found here where a LEGO storage block is the right dimension to be double a Quatro (4x Duplo, 8x normal). However, ...
Special Ed's user avatar
6 votes
1 answer
253 views

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 ...
Vincent Guttmann's user avatar
2 votes
1 answer
197 views

Please help me identity this part (Duplo size)

I got a lot of pre-owned blocks and there's a part I couldn't figure what it is for. There is no part number printed on it; I guess it is not produced by LEGO, probably just some clone brands instead. ...
Since1996's user avatar
  • 141
9 votes
4 answers
773 views

Combine Duplo feet with regular LEGO

I would like to place this Duplo pig directly on Lego bricks/pieces. I tried an intermediate Duplo 2x4 plate with Lego bricks underneath, but it doesn't look good. The problem is that Duplo feet ...
Metalbeard's user avatar
  • 2,585
5 votes
1 answer
162 views

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 ...
Robert Columbia's user avatar
11 votes
6 answers
8k views

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 ...
HpTerm's user avatar
  • 243
3 votes
1 answer
261 views

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 ...
F Gruhl's user avatar
  • 31
14 votes
1 answer
3k views

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 ...
Robert Columbia's user avatar
4 votes
1 answer
478 views

Help identify Duplo Toolo brick

I found a thick brick in my set, but couldn't find it on Bricklink by part number. It's look like an Intelligent Brick, but there are no extended pins. Thanks! UPDATE [11.01.2020]: Currently I ...
k1psead's user avatar
  • 43
7 votes
1 answer
1k views

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 ...
Robert Columbia's user avatar
8 votes
2 answers
2k views

DUPLO Train Action Bricks

I have the weirdest thing with my son's set. Currently one of the yellow action tiles honks the horn but the other yellow brick does not. No matter the lighting conditions, the position, orientation,...
trainengineer's user avatar
9 votes
0 answers
277 views

Where can I buy DUPLO bulk bricks? [duplicate]

The request seems weird, I'm looking to buy for my 1-year-old some Duplo, but they all come in "dog shapes/windows/humans" etc, with a very small amount of rectangular/square blocks, which is all I ...
Francesco Belladonna's user avatar
16 votes
3 answers
9k views

How to disassemble LEGO train engine base part# 28743?

I have one of the new Bluetooth engines (part 28743, but in the bottom it says Hub No 5 model) that has started to under-perform and make some noises, I think that it need some maintenance (maybe due ...
Jade's user avatar
  • 375
7 votes
2 answers
649 views

Why don't DUPLO figures have yellow skin?

Normal LEGO minifigures have yellow skin in an attempt at being racially neutral. Why do (modern?) DUPLO figures use normal flesh tones instead of yellow skin? (Set 10895 aside, which has DUPLO ...
jamesdlin's user avatar
  • 763
11 votes
1 answer
573 views

What is the purpose of the discontinuity in the DUPLO train bridge rack?

DUPLO bridge elements include racks to allow the powered trains to be able to make the climb. An example of this is element 35138: I noticed that the gear rack on this element is not continuous at ...
jncraton's user avatar
  • 40.5k
5 votes
1 answer
452 views

Is this an early Duplo mini figure?

Just wondering if you have ever seen this figure before? I've had it since I was a kid in the early 80's, and it's always lived with my lego (which was mostly hand-me-downs from my older brother - ie ...
Travis's user avatar
  • 51
1 vote
1 answer
190 views

My DUPLO railroad engine stops after 20cm

My DUPLO railroad engine stops after 20cm moving. I suppose the sensor in the front axle is damaged. So is it possible to repair it?
Matthias M's user avatar
11 votes
4 answers
9k views

How do the DUPLO Action Bricks work?

Does anybody know what is the technology the DUPLO Action Bricks are based on? It is not any RFID or NFC because I printed out the white one on normal white paper which turns lights on/off. The symbol ...
Josef B.'s user avatar
  • 213
4 votes
1 answer
408 views

Why does the Duplo bathtub piece have an odd height?

I have recently come in touch with the Duplo bathtub piece. While it is mainly a bathtub whose bottom is shaped in such a way that it can be placed on Duplo studs, one of the piece's sides also ...
O. R. Mapper's user avatar
  • 1,930
6 votes
1 answer
4k views

How to convert LEGO base plate to a DUPLO base plate? [duplicate]

How can I convert a regular LEGO base to a DUPLO base? I have a table that cannot be changed and it has built-in LEGO baseplates, but I need it to be 100% DUPLO compatible. Any LEGO to DUPLO baseplate ...
Andrea's user avatar
  • 61
9 votes
2 answers
686 views

Duplo Locomotive: What is this inner part used for?

Background I was forced to completely disassemble a duplo locomotive. My son played with it in a sand box and, guess what, it was not working anymore. I used a small brush to clean every single part (...
Benoit's user avatar
  • 193
17 votes
2 answers
6k views

Is there an API for the Duplo 10874 train set?

I intend to buy this train set for my daughter. Apparently, the locomotive can communicate with an app via a bluetooth connection. My question is: is there any documentation available so that I can ...
Talence's user avatar
  • 171
8 votes
1 answer
3k views

What is the function of Duplo part# 38507 RAIL ACCESSORY, NO. 4

Can someone explain to me what 38507: RAIL ACCESSORY, NO. 4 (#6225519) is for? I've got this in the new Duplo Train accessory #10882 and can't figure out what it does :S
Nghia Hang's user avatar
5 votes
1 answer
937 views

Duplo rail accessory compatibility with older trains

Are the new Duplo rail accessories, like #6225521 and #6225519 (appearing in, for example Duplo #10872: Train Bridge and Tracks; #10874: Steam Train; and #10875: Cargo Train) compatible with older ...
palacsint's user avatar
  • 648
5 votes
1 answer
3k views

Is the Lego Duplo Track System being discontinued?

Our child recently got the Duplo train starter set 10507 as a gift. The box indicates an extension pack with more tracks, so I was confident our child would be able to extend the (sorry) somewhat ...
O. R. Mapper's user avatar
  • 1,930
12 votes
1 answer
438 views

What is the length of a DUPLO train bridge?

I'm trying to plan a DUPLO train track layout to order but I currently don't own any pieces. I'd like to include a bridge like the one in set 3774, but I'm unsure if it will fit my layouts. Can ...
André Fernandes's user avatar
7 votes
1 answer
233 views

What is the tiny-hand most-friendly sets to migrate from duplo to lego?

How do I migrate a kid who's taken an interest in lego (with a preference to minifigures) from their current duplo collection? I'm tempted to buy just mini-figures, but have seen some "mini" sets ...
Nita's user avatar
  • 235
0 votes
1 answer
213 views

Are creative play sets compatible with Duplo?

Are are the blocks in the Creative Play sets compatible with LEGO Duplo blocks? Also, are they the same size as Duplo, or Juniors or in between?
Annie's user avatar
  • 1