Questions asking for information about a known LEGO element/brick. Include the [Identification] tag for questions about unknown elements.

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6
votes
1answer
146 views

How can I stop the LEGO Cargo train 60052 wheels from skidding on track?

I have the Cargo train 60052, it's only around a year old and lately I've found on starting it (on both straight and curved track pieces) it isn't moving, the wheels seem to skid on the tracks and I ...
2
votes
1answer
87 views
5
votes
2answers
430 views

What is the special Lego Movie 1x1 element shown in the Channel 4 documentary 'Inside Lego at Christmas'?

I recently watched the UK Channel 4 documentary 'Inside Lego At Christmas' and in it, one of the employees of Bright Bricks showed a tall 1x1 element that he described as a brick that Lego came up ...
25
votes
3answers
3k views

What is inside the “weight element” brick?

I own a few bricks that contain a weight inside of them. 52g according to Lego. What exactly is inside of these bricks that makes them heavy?
1
vote
1answer
113 views

Which lego set is the cheapest one containing a motor

Which legoset is the cheapest I can buy in a store with a electric motor in it?
2
votes
1answer
95 views

How much tension can I expect to get out of a lego chain before it starts to give away?

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 16t gear to directly drive a 24t ...
3
votes
1answer
72 views

Identification for harness/hose/pipe + wings

I'm still trying to follow the instructions mentioned in my last question, and I came upon this image: . Does anybody know what piece/pieces that/those are on the right? (I know the # for the ...
3
votes
1answer
93 views

Identification for Hinge-like Piece

I'm trying to follow building instructions on Brickshelf, but I'm having some trouble finding the piece on the right in this photo: . Anyone know what it is?
5
votes
3answers
175 views

What are the differences between the two available pizza elements?

In the "Buy pieces" section of the Lego website, I looked up the pizza element. It turns out there are actually two of them! Element 6102555 costs $0.41/piece and 81867 costs $0.37/piece, but they ...
18
votes
14answers
4k views

What pieces are prone to breaking?

I've had a few pieces break over the years, which was a real bummer as I was not expecting them to. What are some commonly used pieces that are prone to breaking? Pieces that should be handled ...
1
vote
1answer
356 views

Dimensions for EV3pieces

I need to know the dimensions of the EV3 pieces for a school project (in mm). Does anyone know?
7
votes
3answers
303 views

Is there a functional difference between bricks w/ and w/o bottom tubes?

For instance: 3040a - Slope 45° 2 x 1 - without Bottom Tube and 3040b - Slope 45° 2 x 1 Are both of these always interchangeable? If not, what are the cases where you would absolutely need no ...
6
votes
3answers
418 views

Help identify mystery piece and set it could go to

More mystery parts from the bags of LEGO pieces we bought. I can't find a LEGO symbol on it. Is it a LEGO part or some other brand?
7
votes
3answers
413 views

What is the purpose of this plate with door rail?

I'm looking at the this piece: Is this piece some kind of a track on which you can build stuff that slides? I see it in sets as a decorative piece from time to time. What does "door rail" even ...
9
votes
2answers
2k views

How does LEGO handle the breakage of Hero Factory sockets?

My son has a slowly growing collection of Hero Factory figures, and they have accumulated a consistent problem: socket connector cracking. The tips of the angular part of the limb which connects to a ...
7
votes
2answers
1k views

Is this Lego original?

I found this lego piece in a second-hand Lego stock. I have never seen a brick like this, and I can't even find the LEGO write on it. Is this Lego brick original, maybe vintage or some kind of ...
2
votes
2answers
166 views

Identify age of parts from yard sale

I purchased a box of LEGO bricks from a yard sale. Some of the 1x6 bricks are hollow with 2 small slants in them. Other 4x6 plates are very thin with square holes in the bottom. It also came with ...
3
votes
2answers
141 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 ...
5
votes
1answer
82 views

What parts are include with this light blue bike?

I need to find the part numbers of parts on this bike.
3
votes
1answer
122 views

Vintage heads still in production?

Are vintage Lego heads with the classic grin still in production? I am having trouble deciding whether the head-with-grin piece (element ID 9336, called "MINI HEAD NO.1") which is produced today (and ...
2
votes
1answer
81 views

Use for “Technic Coupling, Tight” and “Technic Coupling 3,5-6 Ncm”

Power Functions set 8293 contains these pieces http://brickset.com/sets/containing-part-6025005 http://brickset.com/sets/containing-part-6036892 and they make the set much more expensive than just ...
12
votes
5answers
16k views

How much does a LEGO brick weigh?

I am trying to do a science project and I need the exact weight of one of the LEGO pieces. I am using it as a counter balance on my scale. What is the weight of a 1x4 LEGO brick?
2
votes
3answers
223 views

Do you use the plastic buckets for purposes other than organizing your bricks?

We have several bucket sets like #5560. Now that our collection is growing, it's becoming harder to find what we need in the buckets even though we have them sorted by color. Plus they are in a ...
3
votes
1answer
166 views

How exactly does the pull-back motor (12787) work?

I've got the 42034 Quad for my birthday and it's been really fun to play with technic after so many years. I am very curious about one thing, though - how does the pull-back motor (12787) work and ...
1
vote
1answer
93 views

Which set includes a large white mask

I bought a sealed bag at Goodwill but It did not include any information on what set it is from. Pieces look like large white body plates, skeletal/Stormtrooper mask and tusks.
21
votes
5answers
4k 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). ...
26
votes
4answers
39k 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?
3
votes
2answers
302 views

What is this cylinder like part?

I found a pair of these among some parts I bought. It looks like some sort of cylinder, which could hold an axle for a piston. Is that correct, and how would I use it then?
2
votes
1answer
113 views

Groove dimension of 4216 or 88393?

What is the dimension of the groove of LEGO part #4216 or #88393?
3
votes
2answers
168 views

What is the difference between these two Technic half bushings?

While randomly browsing some LEGO sites, I came across a weird (to me anyway) looking bushing. Its part 4265c. Below is one of the images describing it and the left one I recognize, but the right one ...
6
votes
1answer
218 views

Is there a modern equivalent for windscreen piece 6152?

For a creation I'm building, I am using a white windscreen piece (part ID 6152). Looks like this piece was last produced in the late 1990's. Is there a modern equivalent that preserves this general ...
3
votes
2answers
160 views
4
votes
2answers
707 views

Brick labels to be printed

I am new to the LEGO "business". But I am building up my inventory, getting close to 100.000 pieces now, and before shooting off, I want to have my "system" organized. That also includes print off ...
14
votes
2answers
4k views

What is this Lego piece - Yellow with handles and an octagonal section?

It clearly says Lego on it, but I have no idea what it is. The only number inside is 4-01.
1
vote
2answers
240 views

How to find out which set contains a higher plate percentage?

I want to gather various types/colors of plates to do some mini model MOCs. How can I find out which set has the best plate percentage or price per plate pieces? I know there are a lot of ways to ...
5
votes
1answer
895 views

Dimensions of Mindstorms NXT pieces

I don't have access to my NXT boxes at the moment (they're stuck behind a wardrobe that won't get moved for a week or so) and I'm working on this project where I need to know the dimensions of the ...
4
votes
1answer
107 views

How large is the face of a 2x2 45º brick?

I am attempting to make a decal for a roof tile, sort of like the computer face on certain bricks of the type. However, as there appears to be no template, how large is the face of a 2x2 45º brick?
7
votes
1answer
625 views

What is the true angle of a cheese slope?

What is the true angle of a cheese slope? Bricklink lists it as "Slope 30 1 x 1 x 2/3" while LDraw and Peeron list it as "Slope Brick 31 1 x 1 x 2/3". Why do these sources disagree, and what is the ...
4
votes
3answers
426 views

Why doesn't lego make many 2x2x4 Pieces?

I'm just wondering if anybody here knows where I can get some 2x2x4 pieces ... It seems that Lego doesn't make many just standard bricks that are 4 high ... I've found a few singles here and there on ...
3
votes
1answer
135 views

What does “No Friction” mean in Parts “Gear with 8 Teeth Wide, Notched and No Friction”

http://www.brickowl.com/catalog/lego-gear-with-8-teeth-wide-notched-and-no-friction-11955 As title, what does "No Friction" mean in the part "Gear with 8 Teeth Wide, Notched and No Friction" ?
7
votes
1answer
255 views

Quick way to inventory parts

I have a rather large collection of LEGO elements that are not sorted in any way, and I'd like to keep track of them. There are a few other posts about ways to keep track of elements, and I've looked ...
6
votes
1answer
257 views

Where are the electric pieces for 42029?

I was building LEGO 42029 Customized Pickup Truck, when I got to a page where I needed electrical parts, such as the battery box and the wires. I checked and these pieces were NOT included. Should ...
1
vote
2answers
66 views

Is there a guide that has the number and kinds of pieces per set? [duplicate]

Is there a guide that has the number and kinds of pieces per set - for example 8 pieces of this and 14 pieces of that? I am trying to sort out a large container of multiple sets. I have thousands of ...
9
votes
4answers
2k views

does Lego make bricks with a stone, brick or concrete block design?

Does Lego make the bricks with a stone, brick or concrete block finish on the sides? I would like to use these for walls and buildings on a train layout. Thanks!
8
votes
2answers
306 views

Does the jumper plate have a Danish nickname?

Does the "jumper plate" (1×2 plate with centered stud) have a Danish nickname like the "Erling"? Who is the designer of this part? And does there exist a catalog of designers of specific bricks?
11
votes
8answers
2k views

Are there any mirrored LEGO bricks?

I recently built LEGO Creator 5770: Lighthouse Island which features a clever trick to build the lighthouse's lantern, using stickers on on a Slope Brick 2x2 and Slope Top 1x2x2/3: Step 54 from ...
14
votes
7answers
5k views

What is the rarest LEGO production element (colour/shape combination)?

What is the rarest LEGO element according to the following criteria: Genuine LEGO elements, not those available through third party vendors or otherwise modified elements. (So nothing from ...
1
vote
0answers
30 views

Where can I find this lego piece? [duplicate]

I found this lego piece but I want some more of them for my huge lego project. But where can I find these? I really need exactly this lego piece can someone help me? The lego piece I have: If you ...
1
vote
1answer
126 views

How can a brick/color combination exist but not be part of a set?

In a recent question the 2x4 transparent brick in neon green came up as a rare part (see Does someone know where i can find this lego brick?). It doesn't seem to be listed as part of a set (at least ...
1
vote
1answer
120 views

Some LEGO elements not attaching as usual

I am building a tank made of purely normal LEGO elements, which means no gears or axles or that type of stuff. I am trying to attach a 6x6 LEGO plate onto the base for support, but it is not ...