0
votes
1answer
56 views

Light on color sensor is blue

We had the sensor color on red and it was working with our remote. We changed the batteries in the 'brain' and now the light sensor is blue and won't work with the remote. Any suggestions? It's a ...
0
votes
1answer
21 views

Any elements that can be connected to the cavity under a stud?

Are there any elements that can be connected to the 'cavity' (i.e. the space) under a stud (e.g. on a regular plate or a regular brick)? The cavity measures about 2.4mm in diameter. So far I've only ...
11
votes
8answers
3k views

My poor minifig's head is stuck in his helmet!

Recently I made a LEGO race car with a driver who wore a helmet. Unfortunately, after the race, I tried to take off his helmet and his head came off inside the helmet. Any suggestions about getting it ...
7
votes
2answers
277 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?
1
vote
0answers
14 views

Need a block that can combine a movement program with NXTbee radio (using Labview)

I am a student. I am working on a science project using Lego Mindstorm robots enhanced with NXTbees creating a mesh network. My engineering mentor has me using Labview. I am trying to find a block ...
5
votes
3answers
77 views

What are the very tiny, single-peg, miniature figures from the SHIELD Helicarrier called?

The Marvel S.H.I.E.L.D Helicarrier comes with a number of single-peg decorative figures, including 8 agents, Nick Fury, Iron Man, Hawkeye and Captain America, as seen in this video, or in this report. ...
3
votes
2answers
237 views

What are the armless minifigures from the LEGO boardgames called?

I see many of the LEGO boardgames come with mini figures which are armless and have no holes for arms. While I think it is kind of ridiculous to not simply provide a full figure, I understand it's ...
2
votes
1answer
27 views

6216m2 motor found… what to do?

I recently found a 6216m2 motor in a jumble of old bricks and such - but no connection wires. Firstly, how does this motor compare against all others? As it is a 4.5V motor, it is not listed in ...
3
votes
2answers
276 views

Return a robot to its start position?

I have a LEGO NXT robot, and after some movements I would like it to return back where it started. After some research, it looks like my best option is to revert the motors. To decode their movements ...
5
votes
1answer
2k views

Mindstorms 2.0 can't download to NXT brick with error 142023

Using Mindstorms education 2.0 on a Windows 7 computer I can't seem to get the program to see the NXT via USB or bluetooth dongle. When connected by USB nothing appears in the NXT window with device ...
16
votes
3answers
15k views

How do I print images onto minifig body parts?

I have seen a few custom minifigures out there with images on certain body parts never produced by LEGO. What is the best way to achieve this? I have heard of some people printing out the image on ...
2
votes
1answer
81 views

What's an effective strategy for purchasing large numbers of different bricks?

If you want to go on bricklink for example, you search by part but the end up with parts on various different stores. Buying on ebay is extremely expensive for groups of different parts. How do you ...
1
vote
2answers
446 views

Creating a native EV3B block

I'm trying to create a native block for a hardware sensor. I've got it working pretty well, but can't get it to show up in the "port view" as anything but a sound sensor. I really need the live view ...
0
votes
1answer
203 views

How to fit lego power function LED lights onto cargo train (set: 60052)

can anyone out there explain / illustrate how to fit lego power function white LED lights on the blue cargo train (set number 60052)? We have assembled the engine but I cannot see where or how these ...
0
votes
0answers
41 views

Daisy chaining EV3 with RobotC

I'm trying to run EV3 programs with RobotC and trying run on EV3 Daisy Chaining. I have three independent EV3 bricks labeled A,B,C. I want, according the color reading by color sensor connect on port ...
0
votes
0answers
44 views

Determining what set I have from a bag of lego pieces [duplicate]

I have this set of Legos that came in the bag but in the wrong box at goodwill it's pieces are blue mostly please help
-1
votes
1answer
26 views

Not detecting motor port D

We are trying to program in LabVIEW, using all 4 motor ports. On the port selector, port D is not even showing up.
3
votes
3answers
2k 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 ...
0
votes
1answer
43 views

Programming EV3 with NXC

I'm trying to run NXC programs (all run well on NXT) but when trying run it on EV3 I find an error. The download from computer to EV3, runs well but trying to run the program with RUN EV3, I have an ...
19
votes
4answers
25k 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?
1
vote
0answers
39 views

Free EV3 simulator(virtual machine) for mac

I recently saw this question on a virtual EV3 machine. From the video, I felt that this software will be great. However, I don't have the budget needed to buy a licence. Is there any alternative to ...
0
votes
1answer
113 views

Can Mindstorms EV3 communicate using protocol 802.15.4?

My aim is to make the robot communicate using protocol 802.15.4 through a USB dongle 802.15.4 over 6LoWPAN. The robot has to be able to get information from TelosB. I wonder whether this possibility ...
0
votes
0answers
9 views

MRDS & RCX Support?

What is the last version of the Microsoft Robotics Developer Studio that supports the RCX? The Wikipedia link (http://en.wikipedia.org/wiki/Microsoft_Robotics_Developer_Studio) indicates RCX was ...
11
votes
8answers
1k 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 ...
13
votes
8answers
1k views

Cleaning between the studs of a build

I've unpacked a few of my models after moving home some time ago, these models have been in a cardboard boxes for several months and need cleaning: I've tried compressed air, which only makes some ...
14
votes
7answers
4k 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 ...
0
votes
0answers
20 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 ...
2
votes
2answers
142 views

What kind of “Lego” figures are these?

Can anyone tell me about these lego-compatible figures? They clearly aren't lego brand, they don't look like mega blok figures or tyco figures that I have seen (not that they couldn't be one of those ...
1
vote
1answer
73 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 ...
2
votes
3answers
128 views

Does someone know where i can find this lego brick?

Where can i find this lego brick? I got one but I want some more of them for a project.
2
votes
1answer
36 views

Lego RCX 1.0 problem with communication

I have a problem with communication between the tower (it's installed and it's working - green light when communicating by IR ) and a RCX 1.0. It's not downloading .lgo file. I've tried with few ...
4
votes
2answers
667 views

Quality issues with tan-colored Lego pieces?

I recently bought an expensive Lego set with a large number of tan-colored pieces. I was very disappointed to find out that more than a dozen (isn't that a spectacularly large number?) of 1x1 bricks ...
0
votes
1answer
82 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 ...
1
vote
1answer
56 views

Variable stick lengths and angles at nodes of building bricks

Is it possible to build 3D toys connecting several LEGO Bricks sticks/rods to make polyhedrons? Lengths and angles between sticks should be variable.
0
votes
0answers
22 views

Use of Mindsensors IMU with Labview

I thought someone could help me with a the Mindsensors AbsoluteIMU ACG and its use with the Lego Mindstorms NXT. Is it possible to use it with and get data out of it?
3
votes
2answers
116 views

Is it possible to run more than two remote control trains on one track?

My son has two passenger trains and a lego cargo train. We can get two trains running on the track using one remote. But how do you operate a third train? We do have other remotes which came with ...
2
votes
2answers
470 views

Buying minifigure parts at the Lego Store

Is it possible to buy individual Minifigure parts (like minifig heads only) at the LEGO store? (the physical ones, not the online) if so, how much would they go for?
4
votes
1answer
140 views

How can a Mindstorms robot lift something very heavy?

I have a small LEGO Mindstorms robot and I have to lift something heavy. Now it seems not possible because the motor is not heavy enough.
3
votes
2answers
202 views

Which block manufacturer made this type of person in the 80s

I always thought this was LEGO, and played with it in my LEGOs my whole life (got this in the 80s) but found out recently that it is not LEGO. What brand is it? Who made it? He can hold lego tools, ...
0
votes
2answers
113 views

I have an idea for a new kind of lego [duplicate]

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 ...
0
votes
0answers
21 views

EV3 FLL Question “ outside the box ” [duplicate]

I am joining our FLL team and I have a question can you please help me? I'm working on the mission "outside the box" and my arm on the robot is not strong enough to lift the box in the air, so that ...
5
votes
1answer
218 views

Building a 45 degree brace

I'm trying to reproduce my own house in Lego, and attached is a photo of the porch above my front door that is supported by a 45 degree wooden brace: At my current scale, the vertical white wood ...
5
votes
3answers
1k views

Any good alternatives to BrickLink?

I'm trying to find certain bricks online, and of course, came across BrickLink. But it's so darn hard to use it; search is absolutely useless, and I can't figure out how to use the catalog for the ...
1
vote
2answers
1k views

Where can I download the EV3 education edition software?

I have a site license but I'm not able to find the download for the software anywhere. Any help would be greatly appreciated.
18
votes
4answers
3k views

When did Lego decide that it was okay to put a stud into a technic hole?

At one point, Lego didn't really support putting a stud into a Technic hole, stating that it caused too much stress on the bricks. And for a while, there were no sets where that's the case. However, ...
2
votes
1answer
92 views

EV3 RMIregulatedMotor Regulation Problems

I have problem with regulation of the motor when I control EV3 with Bluetooth. Here is the code: RemoteEV3 ev3 = new RemoteEV3("10.0.1.1"); ev3.setDefault(); RMIRegulatedMotor leftMotor = ...
7
votes
3answers
399 views

What was the 12v AC socket for on the 7864 transformer?

The 7864 transformer had, in addition of the main regulated outlet for controlling trains and a fixed 12v DC for plugging in remote controls and lights, a third socket available which provided 12v AC. ...
1
vote
3answers
1k views

API for Android or iOS connecting to EV3 by bluetooth

There is official API for Windows, WindowsPhone8 and WinRT https://legoev3.codeplex.com/ it lets you connect to EV3 brick and control it remotely from your WindowsPhone. Are there any libraries ...
6
votes
1answer
112 views

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

I recently picked up LEGOS 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 ...
5
votes
2answers
106 views

Two-state clicker button

For no particular good reason, I think it would be interesting to build a Lego button that behaves somewhat like the button on a click pen: as you press it, it alternates between a "down" state and an ...

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