Questions tagged [piece-information]

For questions asking for information about a known LEGO element/brick. Please include the [part-identification] tag (or another appropriate tag) for questions about unknown elements.

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6 votes
1 answer
753 views

Pieces Differ in Color/Shape from Diagrams and are Missing Lego Writing

Ferrari 488 GTE (42125) is my first Lego technic set and I’ve noticed that some pieces differ in the shade of the red/maybe even the type of plastic and also don’t match the diagrams and pictures from ...
-1 votes
1 answer
225 views

Could someone tell me whether this is LEGO or not?

Here is a photo of the piece I have:
2 votes
1 answer
203 views

What is this 2x2 part with one corner curved up?

I recently came across this LEGO part: What part is this? What can it be used for?
0 votes
1 answer
252 views

Detect distances over 255cm with EV3 ultrasonic sensor?

In my use case, I have to detect things about 3-4 meters. I don't need to be accurate, +-2 or 3cm is enough. The EV3-G and most other places have a max distance of 255cm, which I understand that it is ...
4 votes
2 answers
417 views

Existence of a Technic 1M Half Beam

I am building a fidget spinner out of LEGO and need two parts to help it spin better while not being extremely loose. The only part I can think of that would work would be a Technic 1M Half Beam, but ...
5 votes
2 answers
125 views

Any other Technic parts with a pinhole slot like part 18940?

I haven't kept up with new parts or sets for at least a decade, but recently when browsing BrickLink I ran into part 18940: This caught my attention as I'm working on a MOC project right now where a ...
6 votes
2 answers
320 views

Lego Prototype or Megablok?

I came across this brick while sorting some Lego I purchased. It's similar to an Electric, Light Bulb Cover (colored globe), but with three major differences. It is a bit wider, the lower lip is a bit ...
5 votes
3 answers
280 views

Bricks with an axle hole

I'm looking for bricks/elements with an axle hole in it "sideways". I.e. so the axle hole direction is perpendicular to the stud direction. The 1x1 and 1x2 technic bricks are obvious, but ...
0 votes
0 answers
46 views

I have bags 2 and 3 labeled 719R6… Which set are they from? [duplicate]

They are likely from the Lego Friends series, since those sets are what my daughter likes. Lots of lavender, aqua, white and grey pieces. 719R6 on both bags. Googling it turns up a Star Wars set 7196, ...
19 votes
2 answers
12k views

Is it possible to change the battery in a 54604 light brick?

I got 4 of these in in a bulk lot of Lego, but the lamp is getting quite dim in a couple of them. Is it possible to change the battery in a 54604 light brick? It looks like the brick should open, ...
8 votes
1 answer
3k views

Should the LEGO Batcave step 264 use 1x1 Technic bricks?

I've been building the Batcave – Shadow Box (76252): I have gotten to step 264 and it seems odd to me that the single back bricks have a hole in them as they seem to go in sideways in the picture ...
10 votes
1 answer
2k views

What is this brick with a round back and a stud on the side used for?

I haven't seen this part before. What is it? What is it used for?
9 votes
1 answer
583 views

What was the slot for in the 1950's slotted bricks?

Bricklink has a list of ancient bricks from the 50s that have slots in them. What was the purpose of the slot? Its positioning on various pieces suggests that there was something specific you were ...
17 votes
2 answers
1k views

How much tension can I expect to get out of a LEGO chains before it starts to give way?

Assuming I am using the Technic Chain Links to make a chain, how much force can I expect to be able to get out of the chain before it breaks? Suppose I am using a 16-tooth gear to directly drive a 24-...
8 votes
1 answer
2k views

Can you identify these parts and assemblies?

I just spent a lovely afternoon going through a box of childhood (40+ years ago) identifying bricks, but ended with a half dozen I couldn't. Here is a picture: I know some are newer, but some are ...
5 votes
3 answers
370 views

Opaque bricks with no center post?

What is the purpose of 1x2 red bricks without a post inside the brick? I know they often leave out the middle post on transparent bricks to make them look more window-like, but what about in opaque ...
5 votes
1 answer
742 views

Identify this T-shaped part

Seems to be used for making differential gearboxes, cars, and GBCs.
11 votes
2 answers
3k views

What bicycle is this? The handlebars and stand are at an unusual angle

I have this bike from the 80s/90s (4719, red). I wanted to buy another one, but I can’t find this specific version on BrickLink: The handle bar and stand are at an angle, so the bike can be leaned to ...
7 votes
1 answer
1k views

What electronics are inside the SPIKE Prime angular motors?

Is there any information available about the internals of the SPIKE Prime and Robot Inventor angular motors? What Hall-Sensor is used by the SPIKE motors? To be more precise: I'd like to get ...
3 votes
1 answer
771 views

Is the LEGO train motor 88011 waterproof?

My son has been building a LEGO RC boat and has added the motor (part 88011) from this LEGO City Train Set to drive the turbines. He's pretty keen to try it out on water but I imagine the motor is ...
7 votes
1 answer
5k views

Where can I get parts lists from sets by numbered bag?

I have a hodge podge of LEGO pieces that I am trying to organize into sets. I have most of the boxes so it hasn’t been too difficult, just time consuming. Anyway, I’m currently working on set 75093. ...
33 votes
8 answers
8k views

Why did Technic bricks have holes in the studs?

Lego Technic (/ Expert Builder) bricks have always had a very different design than the normal Lego brick, with peg holes lining the sides serving fairly obvious purposes, but they also have had (as ...
14 votes
2 answers
7k views

How heavy is the LEGO Gold Brick?

In this article, it says: [The Gold Brick is] literally made from 14-karat gold As anyone who has held gold before knows, it is heavy. Therefore, what is the weight of this brick?
2 votes
2 answers
338 views

What is this part? Grey, 3 studs long, with two pins and an axle hole [duplicate]

Grey Lego piece. Says LEGO inside piece, but no ID number. Thank you!
2 votes
1 answer
73 views

Can somebody help me find out what set this bag belongs to?

I found a Little bag from a larger set at a yard sale, and im trying to find out what set it belongs to. It comes with a bunch of lime green pieces, some are also gray and red.
3 votes
1 answer
242 views

What do the 'X' and 'K' codes mean for rubber bands?

I see that LEGO rubber bands/gaskets are often associated with a number preceded by an 'x,' such as 'x71' for the small/18 mm bands. A few bands also have a 'K' prefix, such as 'K4' for the large/30 ...
9 votes
2 answers
2k views

What are LEGO rubber bands made of?

I have noticed that LEGO rubber bands (along with just about everything else LEGO) are fantastically durable. They last ages without getting crusty and dying like most commonly available rubber bands....
6 votes
1 answer
627 views

Does the 10309 Succulents set contain only non-unique bricks?

First-time poster here: I write on innovation topics, have been Lego-infatuated for maybe 45 years now. My kid and I were assembling the 2022 succulents kit (#10309) and I noticed a piece that looked ...
6 votes
1 answer
284 views

What are these magnetic LEGO-like bricks?

Can anyone identify these? The tin they are in is dated around 1967 so bricks might be of a similar age. They are magnetic. Any help greatly appreciated.
7 votes
1 answer
860 views

Can you identify these 2 retro bricks? A red piece with notch and steps, and a green circle

No idea about these parts. The green part is roughly 5x5, 6-01 code and old school Lego brand written on it. The red part has a notch and what kind of looks like internal steps. Thanks!
-1 votes
4 answers
224 views

Are there any flat plates with beveled or sharp edges?

I'm currently making a functional minifigure-scaled escalator that ideally move like this. Progress has been made on both the stair slope and staircase design (both respectively pictured below), and ...
8 votes
1 answer
252 views

Extend/retract speed of linear actuators

I am trying to find out if the linear actuators (small, large and XL) have a fixed number of rotations on the bottom axle connector in order to extend them fully? I am guessing the small LA will take ...
20 votes
2 answers
6k views

Is this part real LEGO or a knockoff?

I bought a LEGO lot off craigslist a few days ago with some sets and some bulk parts. It included some parts that appeared to have been bought in bulk (maybe pick-a-brick?). It also had some random ...
89 votes
7 answers
259k views

What are the dimensions of a LEGO brick?

What are the real world dimensions of bricks? (starting with 1x1 brick) Plates? Studs? Does LEGO think of this in metric or imperial units or something else?
8 votes
1 answer
536 views

Compatibility of sports ramps

Are these relatively recent "sport ramps": https://www.bricklink.com/v2/catalog/catalogitem.page?P=75538 compatible with these older "sport ramps" https://www.bricklink.com/v2/...
2 votes
2 answers
222 views

Which basic LEGO blocks exist with studs on top with the same rectangular shapes top and bottom

With the number of top studs for length and width, and heights given as 1/3, 2/3, 1 etc, What varieties are available? 1x1x1/3, 1x8x2/3, 2x2x1, for example. What's the maximum size, length and width ...
20 votes
2 answers
33k views

What are the exact dimensions of a DUPLO brick?

The dimensions of LEGO brick are documented well, but what about DUPLO bricks? If have only found the general statements that DUPLO is twice as large as LEGO but no exact numbers. What about the ...
2 votes
1 answer
218 views

Anyone identify this gold piece mixed with some vintage Castle, Pirate, etc sets/minifigs? No LEGO imprint, but all other pieces are LEGO

Gold piece next to minifig for size comparison.Interior of part.[]
12 votes
1 answer
2k views

Can anyone identify the set these plastic flags belong to? They are mixed in with several old castle sets

Flexible plastic material Two blue plastic flags (?) with “U” and Two red ones with Bulls.
6 votes
1 answer
435 views

How many styles of element separators has LEGO produced?

I used to use other LEGO elements to separate tightly bound pieces in my collection. My thumb nail and I were quite pleased when I first discovered an actual brick separator LEGO introduced to ease ...
20 votes
2 answers
10k views

How to tell the different ages of pieces?

I know that LEGO bricks have changed over the years, with regards to moulding pip locations, element ID numbers printed inside, etc, but I was wondering if anyone knows when these changes happened? ...
8 votes
3 answers
2k views

Recommendation on how to build a "brick presence detector"?

I want to build a model of a complex machine with Lego and Arduino or a Raspberry. The machine model also features several accessories that can be added or removed during operation of the machine ...
4 votes
3 answers
2k views

At what voltage do the c1 and c2 lines run at when controlling a lego servo motor?

related: how to control a servo motor from a raspberry pi The raspberry Pi normally outputs 3.3 V signals from it's pins, however there are logic level converters for interfacing with higher-voltage ...
32 votes
9 answers
8k views

What is the smallest LEGO component?

When I purchase bulk LEGO bricks, one of the first things I do is to tip the whole lot into a mesh bag and give them a good soak in the bath (of course, I remove all the electrical bits etc. first). ...
8 votes
7 answers
8k views

What's the smallest LEGO component, based on its largest dimension?

There's already a question asking what the smallest component is. However, according to its answer, the smallest piece would be the screwdriver. It is pretty small, but its length is over 2 studs, ...
4 votes
1 answer
232 views

Need help to identify a 1x6 support or wall piece

I have looked through pick a brick to find it. I even went searched up the specific set for it but still can't find it.
34 votes
1 answer
42k views

What different types of LEGO train tracks exist?

I would like to purchase some used LEGO train tracks off of ebay. I am not, however, very familiar with the different choices of track systems are out there that I might come across. So I would like ...
7 votes
1 answer
472 views

What's inside a linear actuator?

The two linear actuators that I know, 61927c01 Linear Actuator and 92693c01 Linear Actuator Mini, have a built-in clutch (that makes a clicking sound when feeding the actuator torque when it's fully ...
4 votes
0 answers
93 views

When bricks with bottom holes were released? [duplicate]

I always try to build my sets with bricks from that era. The older ones and their release dates are pretty well known but what about that D variant in the picture with bottom pin holes ie. the modern ...
7 votes
2 answers
703 views

Searching for a part like 48989 but without the pins

I am searching for a part like LEGO 48989, but without the 4 pins. The manufacturer doesn't matter as long as the part is compatible with LEGO bricks. Also, a combination of parts is ok if it has the ...

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