27 votes
Accepted

Has any non-Duplo LEGO set included Duplo components?

One instance I can think of is the 52 mm ball, usually used in the DUPLO Ball and Tube system, being present in a couple of "classic" sets. Most notably the Indiana Jones Temple Escape, 7623 ...
Michael Verschaeve's user avatar
22 votes
Accepted

How to disassemble LEGO train engine base part# 28743?

Here are some disassembly pictures and tips. Tools needed: Either a precision flat-head or Philips screwdriver: There are two flat-head/Phillips hybrid screws that hold the the battery cover down. ...
Rin Rio-Oki's user avatar
  • 8,893
19 votes

Is there an API for the Duplo 10874 train set?

There is now official documentation for the Bluetooth protocol used by the Powered Up product line: https://github.com/LEGO/lego-ble-wireless-protocol-docs The community has created some tools to ...
jncraton's user avatar
  • 40.5k
16 votes
Accepted

Will Duplo trains fit onto a regular 6 stud LEGO track?

For this experiment we're using the wheeled Duplo push and go motor block and red cabin from Set #10874. The wheel width of the motor is the same width as a non motor base. So, for this train ...
Rin Rio-Oki's user avatar
  • 8,893
14 votes
Accepted

Why are there always holes in Duplo bricks?

Plastic molds are designed to have an even thickness wherever possible (I think it helps with cooling), so a having a hole in the stud made sense to keep the brick's walls consistently thin. The hole ...
Pubby's user avatar
  • 5,206
12 votes
Accepted

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

As a conservative approach I would suggest the LEGO Juniors series which has cars and other sets and that are easy to build. However, from first hand experience I can tell that kids learn quickly. ...
Metalbeard's user avatar
  • 2,585
11 votes

Are DUPLO blocks compatible with LEGO blocks in any way?

Duplo bricks manufactured post 2002 are also compatible with a larger brick, produced for a limited time, called Quatro- it is 4 times the size of standard system bricks in every dimension. Older 2x4 ...
Rambling Brick's user avatar
11 votes

Are DUPLO blocks compatible with LEGO blocks in any way?

Some elements are compatible, others are not. IIRC You can stack regular 2x2, 2x4 etc lego bricks on top of normal duplo studs and they fit and hold fine. You can't cover only part of a stud, so ...
Peter Green's user avatar
11 votes

Has any non-Duplo LEGO set included Duplo components?

There was almost (probably) a Technic BIONICLE set with a Duplo tread piece. That set would have been the Sand Tarakava (low-res, high-res, other), a smaller set that was meant to compliment the 8549 ...
Alexander O'Mara's user avatar
10 votes

Website with layout plans for LEGO Duplo trains?

I'm not aware of any sites that are dedicated to DUPLO train layouts, but there are certainly interesting layout ideas out there. For example, this was included in set 2932: There are also loads of ...
jncraton's user avatar
  • 40.5k
10 votes

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

It's an interactive piece that makes the train perform a cool(ish) function when it rolls over it. The train has a sensor on the bottom that reads the piece and does the deed. When the train reads ...
Rin Rio-Oki's user avatar
  • 8,893
9 votes
Accepted

What is the length of a DUPLO train bridge?

Based on the layouts from this answer, a half-bridge seems to be 2 straight tracks + 1 quarter-circle (split mid-track at the end, because the middle of the bridge is centered with the crossing track ...
André Fernandes's user avatar
8 votes
Accepted

Is the Lego Duplo Track System being discontinued?

It hasn't been officially announced yet, but there are at least four large LEGO DUPLO train sets coming this summer. This includes two extension train track packs with straight tracks, curved tracks, ...
TheBrickBlogger's user avatar
8 votes

Is there an API for the Duplo 10874 train set?

Official docs: https://lego.github.io/lego-ble-wireless-protocol-docs/ https://github.com/LEGO/lego-ble-wireless-protocol-docs Discussion: https://www.eurobricks.com/forum/index.php?/forums/topic/...
handle's user avatar
  • 181
8 votes
Accepted

How to disassemble the propulsion wheels of the LEGO/DUPLO train engine base part# 28743 drivetrain?

My back wheels do the same thing. There is no metal axle that connects both back wheels like the axle design does for the front wheels, but I'm sure LEGO designed it that way. So, imagine the train'...
Rin Rio-Oki's user avatar
  • 8,893
8 votes

Duplo block with facecloth or towel on

I have gone through 32 pages of 1x2x2 bricks, and there do not appear to be any towel bricks. (There are, however alternate soaps) The only sets that I can find with towels all use cloth ones
Chronocidal's user avatar
  • 1,244
8 votes

Identify Duplos that were in the Red Bunny Purse

Plush Red Bunny / Rabbit Storage Bag (Bricklink) Bricklink only lists 1 gear item and no other elements, so I'm inclined to think Mr. Bunny came without any Duplo elements, you had to fill him with ...
Michael Verschaeve's user avatar
8 votes
Accepted

Steam train 10874 draining batteries in seconds

Since this is entirely new set, getting in touch with LEGO Customer Support will be your best way of addressing this issue. They will be more than happy to help you.
Alex's user avatar
  • 23.2k
7 votes
Accepted

Can the DUPLO My First Number Train fit on DUPLO tracks?

Not really - the wheels on "My First Number Train" are the DUPLO car wheels, so they will just about fit on straight and curved track, but they won't work on the points and bridge sections. There isn'...
Zhaph - Ben Duguid's user avatar
7 votes

Is there any way to buy specific duplo blocks from Lego (pick-a-brick style and/or in bulk)?

In addition to pick a brick, lego offers the service "bricks and pieces", which includes Duplo parts: https://www.lego.com/en-us/service/replacementparts This gives you new parts directly from lego. ...
TheEspinosa's user avatar
7 votes
Accepted

From what series is this brick? Duplo machine piece with yellow button, copyright 2007

This is a Duplo Sound Effects Brick 2 x 4 with Water and Pump Sounds (Set 5605) brick from 2008. It featured only in 1 set, 5605 Tanker Truck.
Phil B.'s user avatar
  • 16.9k
7 votes

Duplo Locomotive: What is this inner part used for?

They are protective locks. If something (let’s say kids hair, or part of their clothes) gets stuck and dragged inside the wheel, these tiny blocks will lock the wheels and make sure it doesn’t keep ...
Jeroen's user avatar
  • 243
7 votes

Is this an early Duplo mini figure?

At last, I have your answer. The figure is from a "Giant Pre-School Loc Bloc" set, likely the "Playground" one shown in the picture. Nearly a month later, while doing unrelated research, I found "...
JohnnyB's user avatar
  • 3,274
7 votes
Accepted

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

I could imagine that this design was chosen to take care of slight angular missalignment of the tracks at the peak of the bridge (the two parts are not exactly in a straight line but slightly bent at ...
Tobias Schulte's user avatar
7 votes
Accepted

Will the Duplo train track extension set 10872 work with Duplo train set 2700?

From a train point of view those wheels will fit happily within the guides of the bridge, and the connections on the tracks should just about fit as well. I'm fairly sure we bought our bridge when we ...
Zhaph - Ben Duguid's user avatar
7 votes
Accepted

Do Duplo train cars with two female ends exist?

I'm not familiar with any train cars like what you describe. It sounds like you could get this to work by building one of the locomotives backwards on its base. For example, here's the locomotive ...
jncraton's user avatar
  • 40.5k
7 votes
Accepted

Help identifying 4 weird Duplo pieces

The yellow piece looks like 40637 Duplo, Brick 2 x 2 with Digger Bucket Arm Holder.
RSchulz's user avatar
  • 7,512
6 votes

Software to do Duplo train track layout?

You can use RailModeller Express or RailModeller Pro on macOS. Both feature LEGO tracks (regular and Duplo): http://www.railmodeller.com/libraries.html
Jay's user avatar
  • 161
6 votes

Are there any reports of fatal or life-threatening incidents with LEGO?

The vast majority of lego related injuries included some variation of the following: Cutting fingers by trying to disassemble Lego Stepping on Lego (of course) Quick movement of the corner of a piece ...
SlicksterTheBrickster's user avatar

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