All Questions

0
votes
1answer
1k views

EV3 brick cannot connect my to computer

I can't connect my brick to my computer. It keeps saying it can't communicate with the brick. My brick has no firmware. My friend said to change the USB cable but it still doesn't work. I can't ...
2
votes
0answers
32 views

piece information [duplicate]

I found a lego item that I can not fiugre out what it is or what set it goes with. I was hoping someone out there could give me some info on the item. I'm attaching a picture of the item in question. ...
1
vote
1answer
213 views

Buying Individual MiniFigures

I was big into LEGO bricks when I was a kid (now 33), and now my son is getting into them. I'm a huge collector of things (not a hoarder, a collector), and, like father, like son, he wants to collect ...
3
votes
2answers
1k views

Determining what set I have from a bag of lego pieces?

I have a bag of lego pieces that make a set of something but I don't have a box or instructions. Is there anyway to determine what set it is so I can download/buy an instruction sheet for it...or at ...
4
votes
1answer
521 views

Has Lego Box 5508 been discontinued?

The Lego Deluxe Box 5508 seems to be out of stock everywhere in the UK. I was hoping to get this set for my kids for Christmas, but it is nowhere to be found. Has it been discontinued? Or do they ...
6
votes
2answers
431 views

How can I tell if my gold C-3PO minifigure is legit?

I just bought a used gold C-3PO (not the 14k version, but the 10,000-made version). There are some places under the arms and on the right foot where there is no gold paint. I think that they are all ...
10
votes
1answer
289 views

What is the centre hole for in modern train tracks?

LEGO train tracks have 3 holes in each of the segments: I understand the two outer holes are used with a throw-away piece to keep them stacked while shipping, but what is the center hole for? Is ...
1
vote
0answers
29 views

Best place/way to buy masses of bricks [duplicate]

I am always having to take apart models I made to make new ones :'( and it really is bugging me. I don't want to buy specific sets, as they cost a lot because of the work that went into designing ...
1
vote
1answer
171 views

What are the codes for the LEGO advent game? [duplicate]

We don't have the calendar but my 6 year old really enjoy?s the game online. We have the first 2 codes.What are the next codes please
4
votes
2answers
173 views

How can I find the analog output of a color sensor?

Could anyone provide me with an image of the voltage output of an NXT or EV3 colorsensor. I would like to have the analog output if it's possible, and not the digital output.
7
votes
2answers
340 views

Where can I find a LEGO collection of minifigure photos? [duplicate]

I am looking for a collection of LEGO minifig photos - something like this, but with each minifig pictured separately in a full-length portrait. I have not been able to find such a collection on the ...
3
votes
2answers
323 views

How can I get replacement Mindstorms NXT components?

I recently have been trying to work with robotics, via the Mindstorms NXT kits. But as of lately it seems the physical components in the kit went missing (everything except the brick, cables, servos, ...
2
votes
2answers
134 views

identification of lego set by color and shape of inner box

I'm trying to identify a lego set only knowing the color, shape of in inner package. The inner box is blue, dimensions are 18 x 11 x 2 3/8" and 9T plastic compartments, There is a 1984 Lego Catalog ...
3
votes
2answers
232 views

Has TLG ever produced bricks without the LEGO branding?

Has LEGO ever produced bricks without the LEGO brand name on the parts, the packaging or both? I'm already aware of the following: Minitalia. Available in Italy in the 1970s. The bricks were ...
3
votes
2answers
335 views

Which was the first set / minifig with two faces to choose from?

Some of my minifigs (like Iron Man, and Bilbo Baggins, and Harry Potter) have two different faces to show different emotions (usually something happy and something unhappy or upset or angry). How long ...
4
votes
2answers
306 views

Battery for Trains

For those who have tried, which one is a better option: Rechargeable Battery Box and Transformer/Charger 10VDC ($50 + $25) or AAA Battery Box and a lot of AAA batteries ($13 + ?) Obviously $75 is ...
7
votes
1answer
559 views

Lego Trains 12v: Identify This?

This is a very popular picture, which almost all Lego Trains' fans from 1980s would recognize. I have the train in the forground, 7740, but not the 4th car (red one). Can anyone please clarify that ...
3
votes
6answers
7k views

lego ideas (with traditional bricks)

I would like to find a large catalog of Lego designs/ideas that can be built with "traditional" lego bricks (both normal and duplo). I have found many nice designs in the web, but most of them ...
1
vote
1answer
89 views

Advanced coloured lines following robot

I am trying to build a coloured lines following robot, and I would like to know what kind of sensors do I use for my robot to differentiate and detect several different coloured lines?
3
votes
2answers
10k views

Star Wars 2013 Advent calendar codes

What are the four codes for the 2013 Star Wars Advent calendar online game?
4
votes
1answer
284 views

Is this skateboard piece LEGO?

I bought some second-hand Lego and it's a total mish-mash of parts. There was a small quantity of Mega-Bloks in it, but those parts always seem easy to identify. However, I'm stumped about this piece ...
8
votes
1answer
298 views

What is the maximum distance between fixed train wheels?

I'm working on a train, and I'm curious what the maximum distance is between fixed wheel sets in order to properly navigate all of the different types of track (straight, curved, switch, flex, etc). ...
2
votes
2answers
239 views

NXT Brick will not update firmware

I'm running 6 NXT robots in an introductory class. Occasionally we've had bricks that would not accept a program and I've reset the brick by pushing the reset button under the battery pack as well as ...
2
votes
0answers
128 views

Is the EV3 brick balanced? [closed]

I want to buy an ev3 but I want to know if the center of gravity is off in the brick (really does not look symmetric)
1
vote
1answer
235 views

We have a 2013 advent calendar and have entered the code from Sunday but there doesn't seem to be any codes for the 2nd or 3rd [duplicate]

We can't progress beyond the first bit either as Jango or as the R2 unit. Can anyone help please?.
4
votes
4answers
734 views

What other uses are there for pull-back motors?

Sets 42010 and 42011 feature a pull-back motor. They have a very high torque for a very small numbers of turns, they then free-wheel. I'm trying to find alternate usage for them. That is anything but ...
0
votes
0answers
30 views

Where are the LEGO toys made? [duplicate]

Are these LEGO parts/toys made in China? Are there labels which clearly identifies the country of origin? Are there lead issues for the children?
1
vote
0answers
153 views

Linear Actuator of the boom of 42006 jams

I just built a 42006 excavator, and the Linear Actuator jams, can not be rotated. I think the too sharp angle of the u-joint at the top of the boom is the reason. Is there a workaroud?
2
votes
0answers
147 views

LEGO turing machine using Rascal

I followed the instructions on LEGO Turing Machine and succeeded to build it. Next I've tried and failed to program it using NXT Mindstorm GUI. The site mentions a Rascal framework, but it doesn't ...
4
votes
1answer
277 views

How can I order an Ev3 gyro in Europe

I just bought the Ev3 kit, knowing that the gyro sensor is not included. I obviously want a gyro sensor, perhaps also the ultrasonic sensor. Is there any official channel to order them in Europe? All ...
2
votes
2answers
247 views

Where did “Cheese Slope” get its name?

Why is this piece called a "cheese slope"? "Slope" I get; but "cheese"?
0
votes
0answers
23 views

What number plastic are LEGO bricks? [duplicate]

I need to know becuse I want to recycle LEGO bricks.
0
votes
0answers
27 views

Star wars advent calendar 2013 [duplicate]

I can't enter the code from day 1 - the box flashes but it doesn't respond to the keyboard - any ideas?
2
votes
3answers
9k views

How do I unlock the sunday surprise on the 2013 Star Wars Advent Calendar?

I'm trying to enter the code on the back of door number 1 into the Lego Star Wars site but it doesn't work. Does anyone know how / where to input the code?
3
votes
1answer
398 views

Can I open my old NXT program files in the new EV3 software so I don't have to rewrite the entire program?

I would like to use or convert NXT-G 2.0 programs for use with the new EV3 software. Is there an easy way to convert them besides just building them from scratch in the EV3 environment?
0
votes
1answer
386 views

Do you know where I can get a Brick Vac?

I am in dire need of a Brick Vac. The 2 boys 5 and 7 are building daily, but still have plenty of strays on the floor and the end of the day. With the growing popularity of Lego City building sets, ...
8
votes
4answers
5k views

Are there any lego base plates that are compatible with duplo?

I'm thinking of making a lego table but my 2 children both use different lego. My oldest uses normal lego and my youngest uses duplo. Just wondering if there is a base plate that both types of lego ...
5
votes
2answers
336 views

Where I can find the pieces needed in a set?

I own this set, LEGO® Kingdoms King's Castle 7946. One day I let my wife's best friend's kids play with it. (Not the best idea in the world but they had a blast!) Needless to say, the castle ...
3
votes
1answer
143 views

What pieces do I need to make suit swappers from the Lego Batman video game?

My son has asked Santa to bring him Lego Batman suit swappers to use with his minifigures, both Batman and Robin versions. Can anyone advise as to what pieces are needed for these? All help is very ...
5
votes
2answers
502 views

What are LEGO baseplates made from?

I want to lasercut a green LEGO baseplate for a project, but cannot cut a plastic with the laser if it contains PVC or Vinyl. Does anyone know if the green baseplates are free from these materials.
4
votes
2answers
294 views

Where can I get RCX 1.0 software?

We've got a LEGO RCX 1.0 without any Software. I've installed the USB IR Tower, what should I do now? I've downloaded the EV3 Software from the LEGO homepage and thought I could use this, but I don't ...
3
votes
2answers
972 views

Invert motor block in EV3

New to EV3 so this should be simple. I would like my simple wheeled robot to go backwards. So I put two invert motor blocks, one for port B the other for port C followed by a move steering block. The ...
2
votes
1answer
306 views

Getting started with Mindstorms and/or Technic

I'm looking into getting started with LEGO. Can you briefly describe the difference between Technic and Mindstorms? I've read that the parts and compatible, so I suppose it's the functions that ...
3
votes
2answers
336 views

How do I quickly count pieces?

I have LEGO pieces divided into partitions in something like a tackle box, each of which indicates how many pieces are supposed to be in that partition. With few exceptions, each partition only holds ...
2
votes
2answers
627 views

How do I repair loose arm joints?

The arms on my LEGO minifigures are loose. How can I repair these to remain in place when I move the arm to the location I want it to stay in?
5
votes
2answers
954 views

How to program two NXT motors to run at the same time?

I'm working on a project with multiple axis of movement… trying to get two motors to run at the same time in order to achieve a mix of two!
7
votes
1answer
300 views

Is it safe to drink from Pick A Brick cups?

I have a habit of drinking from the Lego Pick A Brick cups. I sent an email to Lego to ask if they were rated safe for drinking from, and they refused to endorse any use of Lego products that wasn't ...
0
votes
0answers
39 views

Block with an anchor smiley face [duplicate]

I have some blocks with a smiley face and anchor as the nose and mouth as the logo. Does anyone know the brand of block that they are?
3
votes
2answers
153 views

Can I use the NXT 2.0 programming software with my educational set?

I have bought the 9797 NXT base educational set. It didn't include any software. I know that I can freely download the NXT 2.0 software (which was included in the 8784 retail set). Is it possible to ...
2
votes
1answer
210 views

What's the sight of the ultrasonic sensor according to the distance of the object?

Hey I'm programming a sumobot for a first-year university Civil Engineering project. We should need the sight of the ultrasonic sensor according tot the distance of an object. For example, the sensor ...

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