2
votes
1answer
108 views

Does the value of Lego increase over a period of time?

I have a couple of exclusive Lego sets such as the 50th Anniversary set, 10184 Town Plan, as well as the Lego Harry Potter 10217 Diagon Alley set. I was wondering if these will increase in value into ...
0
votes
1answer
46 views

How can I remove fast glue (Cyanoacrylate) from LEGO bricks? [duplicate]

I recently bought some second-hand LEGO bricks. Some of these bricks have quick glue on them. How can I get rid of the glue?
2
votes
1answer
184 views

Strongest LEGO structure - (2) Floor

What is the strongest LEGO box structure? I am going to build a LEGO computer case. Different from Mike Schropp and greenyouse, I am planing to build an upright case. (This is a general "strongest ...
2
votes
1answer
391 views

Mindstorms EV3 PC application won't load

Installed Mindstorms EV3 application on MS Windows 7 Home Premium v6.1 (Build 7601: Service Pack 1) and I keep getting the same error message when launching. A white window pops up with the ...
2
votes
1answer
194 views

How can I rotate an EV3 motor an exact number of degrees using RobotC?

I'm trying to rotate the motor of an EV3 by an angle of 50°. I can't. How I can rotate a NXT/EV3 motor by a given angle using RobotC?
0
votes
1answer
31 views

LEGO Mindstorms NXT - NXC compiler for OS X

I need an IDE for LEGO Mindstorms on my Mac, but I only found a few for Linux and Windows but not for Mac. I found NeXT Tools, but the newest version isn't compatible with Yosemite. If I execute it, ...
3
votes
1answer
64 views

Best way to match minifigs and tell what set they are from?

What is the best way to match minifig torsos, legs, heads? Is there a listing of all LEGO minifigures? I have a lot of minifigs with torsos and legs but have no idea which head goes with it. ...
2
votes
2answers
156 views

Strongest LEGO structuce - (1) Pillars

What is the strongest LEGO structure? I am going to build a LEGO computer case. Different from Mike Schropp and greenyouse, I am planing to build an upright case. (This is a general "strongest LEGO ...
3
votes
1answer
40 views

Basic bricks in Ninjago Spinners sets

Every Ninjago spinner set contains basic bricks of the same color: two 1X2 bricks and a 2x2 flat. See: http://brickset.com/sets?query=spinners What is the purpose for these bricks?
5
votes
2answers
471 views

Has Lego discontinued presenting alternate configurations on the backs of modern boxes?

When I was younger, the backs of my Castle/Space Lego set boxes showed alternate model builds for the supplied pieces, configurations not detailed in the instruction manual. I appreciated these ...
7
votes
2answers
22k views

How do i organize all my LEGO bricks and parts?

I just have a massive amount of lego laying around in a container. Kind of hard to sort through whenever i need parts. I was wondering if anyone has experience with many different sizes of lego ...
1
vote
1answer
192 views

What is this minifig?

Saw this on Facebook, what is this minifig? Some people say it is from Atlantis but I'm not so sure.
0
votes
2answers
90 views

Advanced set to 5.5 years old

My son have great successful with build a lot of Lego models, include complex, such as Family house set. And I want to meet him with advanced model, that include some gears and more functional. I ...
0
votes
1answer
46 views

Connect 39k3 powerpack to 417j3 motor

I'm new to lego. Trying to connect the powerpack 39k3 from 42009 Crane to a 417j3 motor. Is a 8528 Converter Cables for Mindstorms NXT the right cable? Is there a way to hack a phone connector ...
2
votes
1answer
495 views

How to build a limited slip differential?

Lego provides a couple of ways for building a differential, such as this: and also provides a limited-slip gear like this: ...
7
votes
2answers
2k views

How can I build a Lego rubik's cube?

How can I build a LEGO Rubik's cube, I have 2 of them, and I've built them several times, but how can I build a LEGO Rubik's cube.
20
votes
3answers
671 views

How do you plan large structures for easy and safe transport to shows?

Imagine I am building a large display that will cover many square feet and have both tall buildings and lots of small details. What are some techniques for making these things modular? Is it safer to ...
5
votes
2answers
81 views

How do I move assembled LEGO sets?

How do I move large sets put together? We do not have the instructions or original box. We are moving from one home to another.
6
votes
1answer
215 views

Which train motor is more powerful, 9V or 12V?

I recently picked up LEGO bricks again and due to lack of space I'm planning to build a multilevel train layout. I do have a descent amount of 12V track along with trains and switch points, but I was ...
2
votes
3answers
900 views

EV3 Brick Error Symbols?

I am currently developing an EV3 robot that sorts colored technic beams. However, the brick will only run part of the program and then generate a strange error code on the brick's screen. The error ...
1
vote
0answers
48 views

Creating electronic product which is compatible with Lego brick [closed]

Currently, my company has an idea to create the product to integrate with your Lego brick. So far, we found that there is a product at kickstarter, mcookie (Link: ...
0
votes
2answers
185 views

I have an idea for a new kind of LEGO, using new types of elements

I have an idea for a new LEGO product (not a LEGO set or anything, I know that the Lego ideas site exists, but a new "kind" of LEGO) I've been trying to contact LEGO about it without any luck. So I ...
6
votes
1answer
194 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 ...
0
votes
0answers
39 views

Error “unable to open port” in LeJOS EV3 behavior programming

I'm writing a behavior based LeJOS EV3 program. I'm using two sensors: touch and ultrasonic. I'm using two large motors and one medium motor. I'm using a sample provider for the touch screen but not ...
30
votes
13answers
55k views

What glue should I use for permanent LEGO construction?

The incredible precision of LEGO parts makes them attractive for building precise jigs, but the fact that they can come apart fairly easily isn't so helpful for this application. Can anyone recommend ...
1
vote
2answers
89 views

Access WeDo on OS X from a real programming language

I'm trying to talk to the WeDo USB interface from Python or really any real programming language. I tried the clever WeDoMore library, but can't get it to bind the WeDo. I think this is because the ...
4
votes
1answer
451 views

Which is faster: M motor or XL motor?

I understand that the M motor has an adequate amount of speed, and the XL motor is best known for its torque. But is the XL motor really faster than the M motor? Or is it the other way around? I am ...
2
votes
2answers
96 views

How to run two LEGO electric trains at the same time?

I have a LEGO city built with a train encircling it. The track is the classic style with metal railings running through it. I have a switch track as well that is connected to an NXT robot to switch ...
1
vote
1answer
1k views

How can I use multiple switch options in Lego Mindstorms EV3 software?

What I see is just a simple if/then/else. What I am looking for is to be able to add multiple options, more than yes/no. I use a motor as a switcher, so I rotate it to some position and measure its ...
3
votes
2answers
2k views

How can I transmit horizontal torque to vertical?

I have a setup where I have a step motor which I am attaching a gear onto. The motor will make the gear stand horizontal in a small vehicle. Is there any good gear combinations of LEGO gears that can ...
3
votes
1answer
125 views

Can anyone help id this partial build/set?

I found this partial set bagged at Savers, looked interesting. But searching thru peeron, I cannot figure out what set this might belong to. Is anybody familiar with what set this might be associated ...
16
votes
4answers
10k views

Is Mindstorms EV3 backwards compatible?

LEGO Group announced the next Mindstorms version, the EV3 which will be available in the Fall, 2013. Does anyone know if the new version, specifically the controller, will be backwards compatible ...
0
votes
1answer
131 views

Are 10682 “Creative Suitcase” and 10695 “Creative Building Box” compatible?

I just wanted to be sure if these two sets 10682 and 10695 are compatible.
40
votes
12answers
57k views

What's the most cost effective and efficient way to buy bricks?

After a 20 year hiatus I picked up LEGO again as a hobby. I've been into the Trains lately and need bricks. I found a couple places to pick them up but they all suck for various reasons. The first was ...
2
votes
1answer
61 views

Is there a site where I can put in a set of individual lego bricks (by part ID) and get an optimized list of stores to buy (to minimize shipping)

I'm new to this site, so please forgive me if this is a duplicate. Background story I got my 6 years old the Lego City Arctic largest set, and then realized he had previously had 2 other arctic ...
15
votes
6answers
12k views

Is it safe to wash LEGO pieces in the dishwasher?

I've heard from a lot of people that LEGO can be washed in the dishwasher, but I'm concerned about warping, losing stickers, wearing off of painted pieces, etc. Is it safe to actually wash them in the ...
-3
votes
1answer
69 views

How many, and what the names are of all the countries that buy, sell, make, and assemble LEGO? [duplicate]

I'm doing a world geography project over the globalization of LEGO. Eventually I will put everything on a poster. I already know that Billund in Denmark is where they were first made, also Hungary, ...
10
votes
1answer
465 views

How can the 12v Train 7823 Container Depot be used to load container ships as per Lego Catalogue

As I kid I was always confused by the description of the 7823 Container Depot in the Lego Catalogues: ..."The crane can be raised so container ships can be loaded." An example can be seen in ...
2
votes
4answers
365 views

Lego remote controlled cargo train not working

I've helped my son put together the Cargo Train set (60052) but now we can't get the remote control to work. It all looks like it's been assembled correctly with new batteries put in, but it doesn't ...
1
vote
2answers
3k views

What is the easiest way to sell Lego sets for a good price?

I have a HUGE collection of LEGO sets that I want to sell. Ebay is too cheap and Craigslist takes too long. Is there an easier and faster way to get some good money?
5
votes
1answer
105 views

How did the LEGO 7862 Remote Controlled Decoupling and Signal work?

I've never seen this set in person, although it appears occasionally in 12V Lego train system images. I've never seen it used, or described. How did the LEGO 7862 Remote Controlled Decoupling and ...
1
vote
2answers
116 views

Inverting motor's rotation

I've designed a robot with two motors. It works as follows: The first motor is attached to the the person's arm, the second motor receives the calculated movement and moves accordingly. When the ...
1
vote
0answers
57 views

Will playing with a 12V train motor by hand damage it?

This question is similar to one for PF motors. The 12V motor bogie has considerably more resistance than does the newer PF bogie motor, which may be moved very easily when not operating. So, if one ...
13
votes
2answers
858 views

Will playing with a PF train motor by hand damage it?

If one pushes a PF-motorized train by hand, will it cause damage to the motor, or any of the other parts (IR Receiver, Battery box)? It is essentially working as a generator when turned by hand, so ...
1
vote
1answer
67 views

Mindstorms Vision Command - what shall I do with it?

I have a Vision Command camera, bricks and book, still boxed with instructions and a W98 coaster, er I mean CD, and was about to donate it to a charity shop but it seems there's no 64 bit driver for ...
3
votes
1answer
73 views

Slow down the mindstorms EV3 motor so target position is not overshot

I have Debian jesse installed on a mindstorms EV3 and I'm using the ev3.lego library: https://github.com/topikachu/python-ev3 I want to be able to slow down the motor as it reaches its target ...
1
vote
1answer
156 views

Where did these small tan bricks come from?

I was going through an old box of LEGO bricks from the 70's and 80's and I found a number of small bricks that appear to be about 2/3 size. They have the LEGO logo, and appear to be the official tan ...
1
vote
1answer
31 views

Control two Lego NXTs with an Arduino

I'm new here and also very noob with the Arduino. I have a basic knowledge in Java and some more in C# so code isn't a problem. I can learn it easily. I have a project assigned. I would like to know ...
7
votes
3answers
759 views

How to remember initial position of a robot and return to it

I have an EV3 robot with motors, like a car, that can move forward/backward and left/right and have some sensors attached. I want it to remember its initial position by remembering all the movements ...
6
votes
3answers
538 views

How many flexible tracks does it take to make a complete oval?

I have couple of straight tracks, no curved tracks, so the only option now from me is to buy the new 7499 straight + flexible tracks. Therefore: How many boxes of 7499 tracks do I need to make a ...

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