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10 views

42131 Bulldozer

Got to the testing page and everything is working correctly except the left wheel is going in the opposite direction to the app animation. I don’t know if I should start again?
14 votes
1 answer
1k views

Is this a LEGO part? rectangular base with sides, and a bar extending from the middle

I distinctly remember separating this part from some Bionicle parts. But is it a original LEGO part? There are no part numbers or other marks on this piece - except for a "2" (seems to be ...
0 votes
0 answers
19 views

Any tips for putting figure's hands into the arms?

I've recently bought some Chinese LEGO-like sets and, even though the quality might not be the same as the original, I sometimes think it's a reasonable tradeoff for the 50-75% price discount. ...
3 votes
1 answer
87 views

Plate perpendicular to bottom of square brick/plate: is this connection legal?

This is closely related to the question about jamming plates underneath 2x2 round bricks, (and indeed prompted by a comment there), with differences explained later. It is possible to attach a plate (...
9 votes
3 answers
6k views

How to run "Power Functions" devices from an electric wall plug?

In this video showing an example of Great Ball Contraption (GBC), we can see (at 1:35) that some trains powers are used to run Power Functions motors: That must be more convenient than having to ...
11 votes
1 answer
1k views

What's inside the SPIKE Essential small angular motor?

I'm curious about this motor (68488): This motor looks very small. What is inside this motor? How does it compare to the other Powered Up motors?
7 votes
3 answers
141 views

How to open first version of the pneumatic cylinder? (Part no 4688c01)

I have a Lego Technic set 8040 from 1984 with the first version of the pneumatic cylinder. Unfortunately, the shaft on the cylinder broke. Apparently the top of the cylinder (lid) is glued. Is there a ...
7 votes
5 answers
5k 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, ...
6 votes
0 answers
105 views

Plate perpendicular to bottom of 2x2 round: is this connection legal?

I've played enough with 2x2 round plates and 1-stud-wide plates to know that it's possible to attach a plate underneath a 2x2 plate and perpendicular to it, like so: The same connection is possible ...
8 votes
1 answer
1k views

I want to recreate a few things I saw but I don't know what pieces I need. Can you identify these bricks?

I want to recreate a few things I saw but I don't know what pieces I need. Can you identify these bricks so I can buy them on Bricklink?
5 votes
1 answer
483 views

How to visually search for specific parts in a 3D model?

For a missed/loose piece that needs to be reattached, I plan to check all the steps where the piece was used. If I can also get an overview of the possible piece locations from the existing 3D models, ...
3 votes
0 answers
45 views

How to find out where a previously lost brick fits? [duplicate]

Rebrickable manages a list of lost parts. If I later find one of these, I have to go through the PDF of instructions to put it back where it belongs, which can be tedious. Does someone know if there ...
3 votes
1 answer
118 views

Not sure what this is - bag 2, whites, purples, light blues

I got this at the thrift store and have no instructions. Does anyone know what it is?
2 votes
1 answer
70 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 ...
0 votes
0 answers
49 views

How do I disassemble Powered Up Motor XL? [duplicate]

My question is, how do you take the XL motor apart? I tried with my knife and hands, but unfortunately, it is still whole in one piece (tabs). I got the XL motor from the set 42099 and I would to make ...
4 votes
1 answer
324 views

Does anyone know what set this is from? Possibly Star Wars, lots of greys

From a friend, we have what looks like a Star Wars set of 9 bags. Bag one is missing, but I think it was just built as this. The bags say 2011 and 135149. Thanks!
3 votes
1 answer
120 views

Can you help identify these bionicles?

My elderly father lied to me. He told me I was his favorite child. Later in life he is now asking me to identify his metric ton of Bionicles pieces. He isn’t in the best health so he can’t do it ...
1 vote
1 answer
101 views

Pybricks on Android Tablet

I have a ZTE Grand View 4 Tablet (K87CA), 8 inch screen, Android 10, with 2GB RAM, and the screen is blank when I go to https://code.pybricks.com/. Nothing happens.
3 votes
1 answer
320 views

What are the structural difference between a minifig and a minifig on a keychain?

Are there any differences in the components or construction of keychain minifigs compared with regular minifigs from sets?
3 votes
1 answer
102 views

Help identify this wing-like piece

So I bought a pile of LEGO bricks and I'd like to know what set this piece is from so I can build it. The only clue I have is the set I'm guessing if from around 2015 as I've identified other sets in ...
0 votes
1 answer
76 views

42114 (6x6 Volvo Articulated Hauler) doesn’t operate bucket and also doesn’t drive

My 42114: 6x6 Volvo Articulated Hauler drives in first gear for a moment, then stops completely; same thing with 2nd and 3rd gear. It doesn’t operate the bucket either. I suspect I forgot to add a pin ...
3 votes
1 answer
1k views

Where is the LEGO logo on the Tartan Batman minifigure’s cowl piece?

I was examining the cowl piece to my latest Batman mini-figure (the Tartan Batman from that came with the Batman movie magazine by Egmont) and I noticed that I don’t seem to be able to find the spot ...
13 votes
1 answer
262 views

When did LEGO start adding a progress-bar to build instructions?

Set #40549 has a stud moving along a progress bar at the bottom of each pair of pages, as you move through the instructions. The stud moves left to right. I've never seen this in any other ...
4 votes
1 answer
184 views

I am building the LEGO 42131 D11 dozer and some of the parts are moving in reverse when testing

I am building the D11 dozer and some of the tests like 2 and 4 are moving the parts in the opposite direction that they are supposed to be going. I took apart the entire build and rebuilt it and the ...
3 votes
0 answers
62 views

How do I copy blocks in LEGO 51515 block IDE?

I have been trying to copy and paste blocks in the new IDE that I downloaded from the Microsoft store (v 10.3.1). I do not seem to be able to copy block code from one project to another. How can I ...
3 votes
1 answer
152 views

Help identify this unknown piece - black police torso, but it has the LEGO logo printed on the middle of the front

I've been looking on Bricklink for a while now, but I haven't found this piece yet, so I'm wondering if anyone knows what it is based on its description: it's a black police torso, but it has the LEGO ...
0 votes
1 answer
151 views

Where do I get PDF instructions for LEGO builds that were only in software, like NXT as of 2019?

LEGO Mindstorms NXT 2.0 (8547) stored almost all of its build instructions in the associated software. LEGO no longer supports the software for modern macOS versions. I can not find build instructions ...
7 votes
1 answer
236 views

Identify this set: bags with grey, blue and red

I am in need of identifying instructions for numbered Lego bags that were handed down from a friend, so my son can start building. They are identified as 4, 5 and 6. I’ve read that the numbers on the ...
3 votes
1 answer
448 views

Gearbox doesn’t move when it’s in neutral - Is that normal?

I’m not sure if the gearbox is supposed to move when it’s in neutral but the gearbox only moves when it’s in drive or rear. If I made an error can someone please tell me if there is a way to fix it?
7 votes
2 answers
2k views

Bionicle Tooth: Legal Connection?

I’m finishing a MOC on stud.IO and have found that it doesn’t recognize a couple connections as legal. This happens on occasion with connections I know are legal, but I’m not sure about these two. ...
3 votes
0 answers
59 views

Are there any resources with 3D models of every Chima piece w/prints?

I'm looking for Chima pieces for a 3D animation project. Preferably compatible with Mecabricks. The characters in question do not matter though I would like if the resource had parts from an Ice Bear ...
2 votes
1 answer
139 views

software to record my own bank of LEGO pieces?

Is there any PC software that can keep track of my own pieces? I know sites like Rebrickable and BrickLink are probably good enough, but they require VPN to access in China. Studio can build LEGO ...
5 votes
1 answer
358 views

How many Harry Potter 20th Anniversary sets are there?

I have 3 of the Harry Potter 20th Anniversary sets (76386, 76388 & 76389) which include gold minifigs (I have Harry, Ron & Voldemort), and a number of (depends on which set) purple 2x2 tiles ...
22 votes
1 answer
4k views

Can all LEGO Loco characters be recreated in real life?

The 1998 game LEGO Loco features a plethora of Minifigs that roam around the city: Can all these characters be recreated with real minifig parts?
47 votes
2 answers
36k views

How do I identify a LEGO part?

Over the vast years of collecting bricks of various sizes and sets, I find that during my free builds I run low on a specific type of brick. How can I go about identifying what the brick is named and ...
5 votes
1 answer
389 views

Adding custom / recorded sounds for power-up

The Powered Up application offers many more sounds than the BOOST app, but the later allows for recording of extra sounds... How could someone add / record custom sounds for powered-up App?
2 votes
0 answers
66 views

Why is Studio not importing some parts of LEGO Mindstorms EV3?

I was trying to import the LEGO Mindstorms EV3 31313 set into Studio when I got this error : It says that some parts, including the most important ones like the EV3 Brick, the motors and sensors, ...
3 votes
1 answer
475 views

Can you help me identify this LEGO, knex type set? bag with black, grey, red, yellow and light brown

I got this in a pile of stuff I won at an auction. It says LEGO 2017 and says it’s bag 1, 649R1 and the QR code gives the number 6172089. They seem to be mostly knex pieces. There is an interesting ...
6 votes
2 answers
1k views

Parts with no part number how is it identified? (need help, but for future too)

So, the white piece has identification, but the front cover does not. How are these identified? It's from an old space set from the 90's. I have tons of non typical parts that seem to have no ...
12 votes
2 answers
706 views

Can LDD or Studio calculate the weight of your model?

I have made a model of mine in LDD, and I want to know its weight. Is there any feature in LDD that can calculate the estimated weight of your model? If not, is it available in other software like ...
26 votes
5 answers
48k views

How can I identify LEGO sets from a box or bag of parts?

I am a lifelong LEGO Maniac, and my kits from when I was a kid were passed down to my nephew, who has just passed them down to my son (40 years of history...). The trouble is that none of my old plans/...
2 votes
1 answer
73 views

Brick ID on the Mega Bloks - round building in 2 parts with door and window

please help with ID on the following parts. Would like to know set and eventually instructions. The Door has AM17450 on it and looks like Pego or something similar Copyright inside on yellow. Would ...
2 votes
2 answers
245 views

"Heads up! Could not open project" error message when opening project

When I try to open my project it gives me error saying "Heads up! Could not open project". Could you please help me? Let me know if you want me to share the file. We were working on that ...
4 votes
1 answer
95 views

Which original LEGO videogames had sets based on them?

Which original LEGO videogames have related sets that were either included with the game or were introduced alongside it?
23 votes
4 answers
8k views

Are all the Magnet minifigs now glued on and how should I remove them?

A couple of years ago (around 2010 I think), I bought a number of the Star Wars magnet sets, as they looked like a (slightly) economical way of buying a number of specialist characters (including the ...
3 votes
1 answer
44 views

Accessing an EV3 brick on computer without MINDSTORMS Home

I am trying to hack my EV3, and I know I can make it execute commands I send via USB thanks to the communication developer kit. When I connect it via USB, it is only visible by the MINSTORMS Home app ...
2 votes
0 answers
71 views

I just finished the typewriter set and everything works fine but the type-bar is a little higher than it should be. Is there any way of fixing it [closed]

The typewriter works perfectly fine. The only problem is the typebar being a little higher than it should be.
7 votes
1 answer
373 views

Can custom content be imported into LEGO Creator?

I was reading this Wikipedia article that states: Some people have uploaded custom (Lego) model creations for others to download into their version of Lego Creator. Tools used include LDraw, ...
2 votes
1 answer
151 views

LEGO sealed Bag 3 number 404R8 - lots of light greys

I have a sealed LEGO bag number 3. It has a lot of common gray pieces and tan pieces. Any help with where the pieces go to.
16 votes
4 answers
1k views

Why don't LEGO Minifigures have ears?

My five year old, Oakley, would like to ask Why don't LEGO men have ears?

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