All Questions
4,136
questions
3
votes
1
answer
15
views
What sets are these pieces from?
I got these pieces recently and would appreciate any help finding out which LEGO sets they are from.
- 31
1
vote
0
answers
44
views
Different shades of Transparent colors for Lego part 30602
I have two 30602 lego parts that look slightly different. The top one is "transparent black" but the bottom is a bit darker. Does anybody know what's going on here? I'm trying to identify ...
- 11
0
votes
0
answers
41
views
Need help identifying what set Lego pieces are from, but have no photos
I have several bags of Lego but cannot find what sets they belong to. I would really appreciate your help. I am having trouble posting any pics.
- 1
1
vote
1
answer
38
views
Is there a guide on how to code custom blocks for NXT?
The answer to a previous question pointed to "custom blocks for NXT". I am not talking about creating "My Blocks" in the "Custom Palette", but code blocks that can be ...
- 153
-3
votes
0
answers
61
views
Lego XOR gate WITHOUT else gates [closed]
Is it possible to try to make an XOR gate with LEGO without using other logic gates?
And if it is possible can you tell me how to build it?
- 1
4
votes
0
answers
122
views
Weird "reflection" when rendering on BrickLink Studio
When I was rendering my train MOC build, I noticed a weird "reflection" on every black piece. What is this? Are the resolution or quality too low?
- 111
5
votes
0
answers
116
views
Looking for a PC controlled motor that allows for very small and precise movements
The image below is a LEGO specimen stage designed for a stereo microscope. I am looking for a recommendation for a PC controlled motors that allows for very small and precise movements.
I want use ...
- 159
5
votes
1
answer
48
views
4.5v/12v connector contact problems
I have pulled out several 1970s and 1980s 4.5v and 12v motors/trains from my childhood for my children to play with. Everything is working pretty well, except that we have recurring contact problems ...
5
votes
1
answer
116
views
Which brand made clone bricks with "HL" on the studs?
This brand also copied some of the original lego sets such as 8418, 8150, and 8151(weirdly its colored in red rather than blue)
I don't need you to identify what's this part is, i just wanna know the ...
- 111
4
votes
1
answer
54
views
NXT - Mirror motor rotation
I'm trying to make a program in NXT 2.0 that mirrors the (manual) movements of one motor to another.
I managed to start motor B running in the right direction but I am having trouble controlling the ...
- 153
15
votes
1
answer
4k
views
Which bricks are still protected by copyright / trademark / patent law?
In 2010, The European court of justice (ECJ) in Luxembourg validated a lower-court ruling, in favor of Canada's Mega Brands, that Lego's bricks can't be legally protected by trademark law because ...
- 1,055
2
votes
1
answer
136
views
Identify brand of this non-LEGO 2x4 plate
I found this on my old desk and then I remembered that I used to buy fake LEGO sets with parts like this. Maybe someone knows what the name of the brand that produces parts like this (I don't know if ...
- 111
3
votes
1
answer
442
views
What is the procedure for connecting PoweredUp remote to Boost motor brick?
I have a PoweredUp remote from Passenger Train 60197 and the motor-brick from Boost Creative Toolbox 17101.
Sometimes I can connect the remote to the motor, sometimes I can't. When I do manage to ...
- 247
0
votes
1
answer
126
views
If we threw every single LEGO piece ever manufactured into a pile, how big would the pile be?
My cursory research of LEGO tells me that the manufacturing of plastic LEGO bricks began in Denmark in 1947. If we were somehow able to obtain every single LEGO piece ever created since 1947 and make ...
- 119
10
votes
1
answer
2k
views
What LEGO piece is above the blaster with clip?
I can’t seem to find this exact piece. I was wondering if you could help me find it?
- 101
6
votes
1
answer
679
views
Very unusual-shaped piece - large octagon, recessed, with alternating panels and 4 stud sections
Does anyone know the name or number for this Lego part. I've searched and searched but can't find it:
- 61
7
votes
1
answer
339
views
7
votes
1
answer
850
views
Identify helmets from LEGO Bionicle
I found these LEGO Bionicle helmets when looking through a box in my attic. I want to identify the corresponding sets.
- 71
1
vote
1
answer
156
views
Identification tool for LEGO parts
I wounder if a lego part identification tool or POC already exist?
I would like to try to build a small POC software using a such recognition concept. Where should I look first?
- 111
5
votes
0
answers
123
views
How can I prevent rubber bands disintegrating?
These two answers partially answer this question., but I think it's worth its own question to find more options in a more comprehensive answer.
Old Lego rubber bands are known to become brittle over ...
- 1,050
2
votes
1
answer
105
views
Black Universal Joints
I'm seeking black universal joints for a project. Do these exist in genuine LEGO form? I'm guessing the answer is no, despite hints (here and here). Ideally, I'd like the 3L size.
Do you know of a ...
- 420
5
votes
1
answer
441
views
42082 crane boom doesn't engage
At the top of the sleeve part of the boom is a gear and that is supposed to turn against a rack of teeth all along the inner slide part of the boom extension, to make the boom longer or shorter.
...
- 231
3
votes
1
answer
47
views
When using Mindstorms Scratch-like development tool for EV3, is it possible to move a single or a few selected blocks somehow?
Say I have 10 random blocks in a line.
Is it possible to move number 4 to position 1 without also moving block 5-10?
As far as I have managed to move blocks all following blocks also gets moved even ...
- 31
6
votes
2
answers
2k
views
What is a rubber technic beam with two axle holes?
I'm starting an inventory on Rebrickable, and came across a part that I can't find listed. I can describe it clearly enough and I know how it might be used (but not why it's better than the "...
- 231
5
votes
1
answer
234
views
Identifying blue dragster?
I have bought this model as is without building instructions. So I don't know if this is an original model or a fantasy car.
I'm interested whether this is a original LEGO model, which one it is and ...
- 211
-1
votes
1
answer
170
views
Are either of these cars uncredited ripoffs from Rebrickable?
I'm no expert in searching Rebrickable, but turning up the minimum block count to over 3300 seriously cuts down on the number of matches. I've tried variations on the names and creative spelling, but ...
- 231
2
votes
2
answers
107
views
Multiple Programming Blocks Running at Same Time
My team created a simple program to drive robot out. It consists of a MyBlock to drive straight a specified distance and speed utilizing the Gyro sensor. The program then activates a third large ...
- 21
0
votes
0
answers
121
views
inventory of Nifeliz sets
Is there any pre-made inventory that I can use to add the Nifeliz sets I bought to Rebrickable, as I do with the Lego branded sets?
I'm very surprised that a search for Nifeliz finds no posts, as they ...
- 231
5
votes
1
answer
176
views
How does the button on the Poltergust work?
I've seen that the Luigi's Mansion Lab (71397) set features the Poltergust:
The basic idea of the in-game item is that it can reveal, suck, and blow enemies. It has a similar play feature shown on ...
- 34k
1
vote
1
answer
154
views
Different shades of the same color
I’ve bought a 10232 set recently online (not official store, some Amazon seller). The box and all packs were properly sealed, but I see some bricks have the same color (grey), but different shades. I ...
- 11
4
votes
1
answer
139
views
Lego rough terrain 42082, page 57 book 1 - how does it connect internally
Is the dole meant to connect to another cog inside so all the gears rotate the big round cog on top
(Image from brickinstructions.com)
- 41
12
votes
1
answer
600
views
Identify 4x4 and 4x8 plate with clip
Looking for part numbers of these plates with a belt(?) clip.
11
votes
1
answer
1k
views
Which set is this school themed sticker a part of?
Who can help find the set this belongs to?
11
votes
1
answer
3k
views
What is this LEGO minifigure with yellow face shield and lots of teeth?
I found this LEGO Minifigure and I can't identify him or what set it came from.
- 111
2
votes
0
answers
91
views
Alternative Colour for Halberds in Lava RoboRider 8510
I recently bought a second-hand lot of RoboRiders, and noticed Lava included two halberds in dark gray instead of black, as listed in the BrickLink inventory.
Did this set ever include dark gray ...
- 1,050
5
votes
1
answer
751
views
Which Ninjago set is this from?
Hi, if you can help me identify which set this is from that would be amazing!
0
votes
0
answers
111
views
Identify Mega Bloks part - 2x4 with holes and long bars at the end
Can anyone identify this Mega Bloks piece?
- 1
7
votes
1
answer
2k
views
What's the easiest way to build a delta robot using LEGO Mindstorms 51515?
I'm fairly new to Lego Mindstorms and I'd like to assemble a pick and place mechanism.
I was looking for existing delta robot designs and found a lot of good looking designs:
https://www.youtube.com/...
- 225
8
votes
1
answer
170
views
How many minifigs have unique heads?
Most minifig heads seem to be shared by a few designs, but Alex's answer to a minifig identification question left me wondering: how many minifigs have heads that are unique to them? Presumably you'...
- 5,069
6
votes
0
answers
182
views
Was the color variation on 1970's transparent pieces really that bad or are mine unusual?
Having gone through a bunch of old 1970's Lego (I rebuild all my original sets during the Covid lockdown) I noticed that color-less transparent bricks and slopes have a lot of color variation to them.
...
- 966
6
votes
1
answer
640
views
6
votes
1
answer
510
views
Parts identification (some may not be Lego) bugle, cart, vehicle front, broken-glass texture
Some more odd parts from the large bag of unsorted Lego I recently acquired.
Hope that someone can identify them.
The 2 pieces on the right are probably NOT Lego. No logos on there.
The colors are ...
- 966
6
votes
2
answers
2k
views
What set is this? Minecraft and Star Wars?
We have these sets in the Lego box. No box or instructions. I tried looking up codes and can’t find them. The silver part is the most unique one I can find to help look for it. And I think we have a ...
- 61
6
votes
1
answer
230
views
To which set belongs this door with stickers on both sides?
I try to identify sets in a large bag of unsorted Lego (will probably have to ask some more of these in the coming days).
This piece is a real odd-ball: A black door with (mostly silver) stickers on ...
- 966
1
vote
1
answer
104
views
Are both a Mario and a Luigi required for 2-player mode?
The Luigi Starter Course advertises the ability to "team up for new adventures":
Does this 2-player mode strictly require a second Luigi, or would a second Mario also work? What about 2 ...
- 34k
2
votes
0
answers
67
views
NXT Sensors/Motors not working
I went back to using the NXT brick after two years and I'm having some problems:
Motors do not respond to degrees or rotations;
Ultrasonic Sensor and Color Sensor are not working;
Touch Sensor is ok;
...
5
votes
0
answers
273
views
How do I build my LEGO slope so it connects to the flat top without any notable ridges?
I'm currently building a functional LEGO escalator that is minifigure-scaled and with staircases transitioning from flat platform to stairwell to flat platform. Here's my progress so far:
Here's the ...
- 167
-1
votes
1
answer
127
views
Where can I find Orient Expedition 7419 gameboard tiles to print?
I lost the cardboard gameboard squares.
Does anybody have a high quality scan of the tiles so I can print them ?
- 13
2
votes
0
answers
102
views
Issue during VW T2 Volkswagen (10279) van assembly
My build does not match instructions on page 41:
When I place blue piece on top of the crossbar, there are spaces on either side not one space. I have been extremely careful in following directions. ...
- 21
16
votes
6
answers
3k
views
Estimate building time for a given LEGO set
I'd like to be able to estimate better how much time a LEGO set will take me to build.
Are there any resources online that indicate average or fastest building times for a given set?
I suppose it also ...
- 8,948