All Questions

I'm trying to find plates to build a baseball mascot with my kids. I can't find the actual set anywhere (it's actually a FOCO BRXLZ brand set), so I am trying to piecemeal the set. I'm not concerned ...

How long would it take a Power Functions M-motor to turn 1 googol times? I have tried figuring it out with a calculator but I was confused.

I've searched and can't find any info on it on how to open this LEGO part 53500 Won't open the same way as other light bricks, and don't see any clips or a continuous line where it should open. Need ...

We bought a set of returns of which one should have been the 6020 piece Hogwarts castle. We received 37 bags that are represented in the pics below packaged neatly in the Hogwarts box. We have bags ...

I bought my grandson a box of LEGO and this was in it. I have tried searching for 3 days with brick numbers to find the set but can’t get any joy. If anyone can point me in the right direction I would ...

The set 8365 Tuneable Racer has tunability as its main feature, meaning the motor's parameters can be changed by adding, removing or swapping certain additional elements. However, these parts seem to ...

I'd like to use an EV3 brick to power an old 9V motor (74569). To do so I'm going to get one of these conversion cables (x1676) but I'm not 100% sure if it's possible to control the speed of the motor ...

I've paired my phone to the brick, however I was wondering if there were any resources out there regarding a simple android app to type something out on my phone and output it on the robots LCD screen....

I’ve been sorting through my 19 year old sons Lego and found a few Mega Bloks pieces I can’t identify. Any idea what set these blue and white pieces could be a part of?

This week I found a partially assembled Lego satellite and I wanted to build it but I can't find the instructions to finish it. The satellite I'm 90% sure is a scale model from a satellite launched by ...

I'm looking to identify a Female minifig she has an open slope decorated skirt (no legs), long brown hair, big eyes! I think the body is wrong as it's plain black with standard yellow hands.

I'm interested in making something like the Western General Store. Can anyone explain how they got the slanted windows boards like that? Also, the roof seems to use some sort of cylindrical T-brick ...

I purchased a mixed bag of parts from a local seller and the pictured item was in the bag. I do not recognize it and would like some help with kit number, description, etc.

When I built the COR3 robot I started to have some fun programming it. But then I wanted to add a ultrasonic sensor on my robot but I can't seem to find a way to place it on my robot. If you can ...

While using makecode I wanted to import my file to my EV3 robot but it says that I have to connect my EV3 robot to my computer then move the file to the robot. But since I'm on chromebook I don't see ...

I've got 3 bags. On the bag 1 it says 529r9 Bags 2 and 3 says 629r9 Is there any way to figure out what set are these bags from?

Is there some kind of official source regarding the safety of bricks made by brands other than LEGO®? I'm not talking about choking hazard or similar (these are obvious) but heavy metal (lead, ..) or ...

Is it possible to rename a submodel in BrickLink's Studio 2.0? I couldn't find any appropriate function within the program. Last time I've done it the "hard" way by modifying the .ldr files ...

How do I sync audio and movement with my NXT 2.0? I'm building an animatronic head and I can't find a good way to sync it with external audio because the internal speaker is too quiet.

I'm trying to follow a video MOC tutorial but I can't figure out what this brick is. Part number would help.

Please help me identify this part - the white piece / pieces at the back? The instructions are no longer available and all i can find is this fuzzy picture. I can work out the rest, but this has ...

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. ...

I have modeled a custom part in Blender and I would like to get it into LDraw format for use in LDCad and LPub3D. I don't know much about 3D formats, but Blender can export collada, alembic, fbx, gltf ...

So, I need to send an rbf file from my computer to e-mail for a tournament. I'm currently using python with the ev3 microPython setup and vscode. The question is, where or how can I get the rbf file ...

Recently I visited a LEGO shop on an e-commerce platform, mainly for local market in Vietnam, what caught my eyes was the shop name: "LEGO Official Store". Although there was no information ...

I bought this Lego set off the internet and I can’t figure out the set number. Can someone tell me the set number?

I'm using Studio 2.0 to design my MOC. Is there a way to replace a brick in my design by another other than removing it an setting a new brick on the old place? Best would be when the replaced brick ...

I cannot get the rams to lift or lower the tipper body I suspect its something to do with the clutch mechanism since all the shafts and gears rotate freely until the clutch is connected. The white ...

Can't answer this officially because I haven't enough points but the photos on the only other answer are of the front end, the problem I had on the rear was that the bottom shock absorber brown ...

My son is having a lot of fun with the Lego Gadget set (book and bricks), but he can only build one thing at a time, and would love to have a lot more of the types of Lego bricks that came with the ...

I'm trying to make a program in the NXT software that turns on the motors unlimited, then waits until something is less than 30 cm, stops the motors, turns to the left 30 degrees and saves the value ...

I have bag #3 with 539R7 underneath it. The plastic bag has 135149 which indicates it’s from 2011. The bag has red, black, and dark grey pieces along with 6 wheels. Any help would be appreciated.

We currently teach Lego robots as part of our Technology curriculum, but we are 1-to-1 in a BYOD environment. So we have all different types of devices the students use including Chromebooks, Windows ...

Is this brick from an old Space Explorer set? I cannot seem to find a number on it. Any help to link this brick to a particular LEGO set would be much appreciated.

I'm trying to figure out how to continuously lift a stream of incoming pieces up vertically, at least 10cm. This is my first real custom build attempt, so I'm very much at a loss on how to go about it....

I am trying to create a modular building with roofs. I saw this Youtube video and I would like to know what is the round 2x2 piece mentioned by the author. https://youtu.be/3oq3XPN8brQ?t=165 What is ...

I was wondering how Lego went from a 4 digit code to a complete family and set of products to identify them like the Creator set, the System set... Of course part of it is their growth but does anyone ...

At the current moment due to my camera being busted on my phone and the protective glass on it being shattered my camera can't take anything more than a legit blur. However I've come here to say the ...

English names can be found easily for nearly all LEGO sets on BrickLink and other sites. However, the sets have names in other languages as well. Is there an overview of set names in languages other ...

I was looking through my collection and found a minifigure torso with the arms and hands molded together. Does anyone know what set a minifigure like this came from?

I'm currently working on a roller coaster MOC with a looping. I started physically building the MOC but quickly recognised that it is quite a mess to build something, tear it down rebuild it, etc. ...

I recently made a MOC using LEGO bricks that I would like to sell. I know that, since this is my own construction I have the rights to do that, but my question is about the LEGO trademark. I want to ...

So, basically, my problem is that my Ev3 Gyro Sensor clamps outputs beneath 0 to 0. If I were to rotate my robot clockwise, the gyro rotation would go up, but when I rotate my robot counter-clockwise, ...

I'm trying to build a custom build from YouTube and it contains a piece that I've never seen before. I'm completely stumped. Can anyone identify the brick and part number? I've attached the image. It'...

I'm creating a roller coaster MOC with a looping based on the Creater Expert set #10261. All track pieces have a length of 8 or 16. However due to my looping I have an offset of 6. To reconnect my ...

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?

I feel like I have seen this piece before, yet I also feel like it may not be a Lego piece. I am not sure! I have searched for Bricklink to no avail and it has no number or Lego number on.

Please help to identify this plastic bag of LEGO parts.

I have a friend who is ready to buy my LEGO, but I still need to set a price. I have about 4kg (8.8lbs) of complete sets (2011 - 2014). Almost all of the 10 are complete. The other half with 4kg are ...

So I've seen a question that solves my problem in an older version, which I don't think is possible in the Education EV3 Classroom - 1.2.2, which is the one I'm using. I want to simultaneously run 2 ...