0
votes
1answer
79 views

Can Lego Duplo and Lego Junior sets compatible? Can the pieces be mixed together from the different sets? [duplicate]

Are Lego Duplo and Lego Junior sets compatible? Can the pieces be mixed together from the different sets and all be played with together?
0
votes
1answer
72 views

Rat Rod Semi Set

I'm looking for a set that I saw at a Walmart in Washington. Unfortunately, I was going to buy it as a Christmas gift for my husband but he was with me so I didn't buy it right then. We came back ...
0
votes
1answer
37 views

Cannot add instruction tiles to EV3 brick program.

I was using the EV3 brick program software included in the ev3 Brick and I can no longer add instructions. I think I've reached the max length. Is there a way around this? Can I run a second program ...
0
votes
3answers
386 views

LEGO Mindstorms NXT - bossa driver prevents firmware upgrade

First of all, this may sound like a duplicate post. But, my Mindstorms NXT 2.0 has been having the "Clicking Brick Syndrome". I have been told that uninstalling the bossa driver then unplugging and ...
0
votes
1answer
70 views

What is LEGO MINDSTORMS? [closed]

I have heard of LEGO MINDSTORMS, and wondered what it is for the longest time. What is it? What can you do with it?
0
votes
4answers
175 views

Every time Robot is launched (without changing the code) it is not following the exact path

I'm working on FLL mission and every time our team launches the robot (without changing the program, and we are making sure that it is starting from same location every time) it is not following the ...
0
votes
1answer
156 views

Color Sensor/hi-tech and EV3

I want to create a line follower by EV3 using hi-tech color sensor without using switch! :( I tried some former ways but the robot cannot follow the line very well! can anyone guide me?
0
votes
1answer
89 views

Can i change the way the ir remote works?

I bought an EV3 and the first thing that I want to do with it is control models with the remote. I finally discovered how to do this after a long search. It can control the Formula EV3 racing car ...
0
votes
1answer
71 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?
0
votes
1answer
272 views

where can I find simple Lego ideas [closed]

I have just acquired a bunch of bricks and specialized bricks. Where could I get a lot of ideas? Anything to do with a city would be good. I have already tried the LEGO club.
0
votes
1answer
206 views

I can’t run the NXT 1.0 program software on my Mac version 10.6

How do I fix this? I run the install program, restart my computer, go to the “Applications” folder and there is a folder named “LEGO MINDSTORMS NXT”. I open the folder and there are three “options”: a ...
0
votes
1answer
226 views

Minifigure Torso Cracks

So I recently picked up the new Star Wars AT-AP and I was quite please with what I got, but after not even a week The awesome Commander Gree Figure had a torso crack that went from the bottom of the ...
0
votes
2answers
302 views

What can I do to clean a minifigure's torso?

Well, I have the old Greneral Grievous from 2005, and it is almost 10 years old. So, by the time, it's torso became like yellow-painted. Tell me what can I do to clean it. Please?
0
votes
1answer
1k 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, ...
0
votes
1answer
156 views

Are variables always global with NXT?

New to NXT software. What I'm trying to do is get my motor to go one of 5 distances, but I'm not sure how to choose between those actions. What I thought of was setting 5 variables to 5 sensors. The ...
0
votes
1answer
150 views

Where can I buy replacement stickers for the set 8018? [duplicate]

I need replacement stickers for set 8018. I've bought a used set and I'd like to change around the sticker position.
0
votes
0answers
30 views

Value of Lego Harry Potter? [on hold]

So I have most of the Lego Harry potter sets and I know they have increased in value greatly but I was wondering whether I sell them now or wait until the new Harry potter films come out (Fantastic ...
0
votes
0answers
11 views

Mechanism of paper feeding [duplicate]

Can someone please explain the whole mechanism or share a link of how printer takes only one paper at a time and how its mechanism is driven like if rollers are using to pick a single paper at a time, ...
0
votes
0answers
21 views

Extract Bricklink or Brickowl parts list from LDD (on OS X)

I've got some models .lxf and I'd like to order the parts. Is there a way to extract that information from LDD on OS X? All the solutions I have seen so far go via a Windows application.
0
votes
1answer
42 views

Best adhesive to fix a model for long term display? [duplicate]

What is the best adhesive to make a model into a permanent display like into a Christmas decoration or an ornament? I want for this model to withstand being packed and unpacked year after year.
0
votes
0answers
16 views

Software for build options from pieces I already have? [duplicate]

Is there software or a site that allows me to enter what LEGO pieces I have and will give me build instructions?
0
votes
1answer
61 views

Java BufferedImage with Lejos NXT: Java Heap Space

I'm trying to write a program for my Lego Mindstorm NXT, the program is simple, drawing some lines and saving the image in a .png file. So, I thought I'd use BufferedImage and use getGraphics to draw ...
0
votes
1answer
56 views

Eneloop NiMh batteries not powering 42030 loader

Is it because the batteries are only 1.2V? It works fine with Duracell alkaline batteries. Thanks in advance.
0
votes
0answers
49 views

How to determine orientation of a EV3 gripper?

I have built the EV3 Gripper using the manual. I am programming an ev3 brick using ev3dev. I need to determine the angle/direction/orientation of the robot programmatically, before I can issue a ...
0
votes
0answers
41 views

lego cleaning dust? [duplicate]

I'm a LEGO seller and buy around 20-50kg of LEGO bricks a week. I need to clean these items before I sell them. Currently I'm using the standard method using a bucket and soapy water. Although this ...
0
votes
0answers
31 views

Lego brick management tips [duplicate]

My 4 year old son loves to play with Lego and we encourage him. We built a few sets together and he mostly builds stuff from his own imagination. He likes to build new sets with us and to follow the ...
0
votes
0answers
38 views

Temp Glue for LEGO [duplicate]

We have a Train Station Set, but this built is so loose and comes apart so easily thus it is really hard to move/play/connect to other parts. Is there some product like temporary LEGO glue to stick ...
0
votes
0answers
56 views

How to receive response from direct_command_reply from EV3 using Python?

I've established and tested a Bluetooth connection (by playing a tone) between EV3 and Mac running Yosemite with Python 2.7.11. I used file write as in bt.write(tone) in Python to play the tone with ...
0
votes
0answers
31 views

Sense and Display blocks

I put move forward until it sees the red color then it stops and it writes red color But the teacher told us there is problem so where is the problem?
0
votes
0answers
49 views

LEGO EV3 T-Rex movement fix

I tried to make T-Rex with instructions from the LEGO Mindstorms EV3 Laboratory by Daniele Benedettelli. I see that the T-Rex is not able to move forward due to heaviness of the brick. Also the feet ...
0
votes
1answer
137 views

Connecting EV3 to Mac over Bluetooth without Lego Mindstorms software

I am trying to connect the EV3 brick over Bluetooth to a Mac so I can use direct commands to send bytecodes. However, the Bluetooth connection remains active only through the Lego Mindstorms ...
0
votes
0answers
24 views

how to assign values for 2d array in bricxCC?

I use BricxCC to program my NXT robot, and the problem is that I can't figure out how to assign value to 2d array unit after array was initialized. the code looks like this: int map[8][11]= { ...
0
votes
0answers
81 views

Lego EV3 running LEJOS with RESTful services

Am running LEJOS OS on my EV3 and trying to add REST APIs so that it can connect to a web application on cloud/containers. The main goal is that, Java web application( REST Client) should send ...
0
votes
1answer
59 views

Mindstorms brick has a dim display

The LCD display on my Mindstorms brick (microprocessor) is very dim. It is not just a low battery; I've plugged it into an AC adapter. Anybody encounter this problem? I will post a picture of the ...
0
votes
1answer
72 views

Sending information from one EV3 brick to another EV3 brick

I am working on a project using RobotC and multiple EV3 bricks to participate in a robotics challenge. I am wondering if it is possible to send sensor values from one brick to another through either ...
0
votes
0answers
57 views

Why is Bluetooth is so temperamental?

I had a program that would use the Ultrasonic sensor to detect when it was 6 inches from another robot and then would stop send a bluetooth message to the other and would send the other one off. Like ...
0
votes
0answers
12 views

NXT error code 10003 on startup [duplicate]

I run Mac OSX Mountain Lion on my computer. When I got my new computer, I had to reinstall Mindstorms NXT because my disk was scratched and therefore corrupted, I had to download it from the ...
0
votes
0answers
51 views

Firmware problem or EV3 problem

I've gotten EV3 recently. Sometimes after I download the program it doesn't run and it's not possible to stop it, so I have to reset EV3 to update and download firmware! It occurs many times! I don't ...
0
votes
0answers
256 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 ...
0
votes
0answers
22 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 ...
0
votes
0answers
47 views

Linking two blocks [duplicate]

I am in a contest and would like to use one Mindstorm block to control another. I am new at this. We are in invention section of the contest and trying to develop a pipe laying machine. Basically I ...
0
votes
0answers
25 views

Programming sensor to follow light [duplicate]

Cannot get sensor to follow light on other moving robot.
0
votes
1answer
80 views

Decals for Lego Pharaoh's Quest Flying Mummy [duplicate]

Do all lego sets have decals? I am specifically looking for decals for Lego Pharaoh's Quest Flying Mummy.
0
votes
1answer
261 views

EV3 IR Beacon/Remote Programmability

Can the EV3 IR Beacon/Remote be programmed to emit other IR signals, like for triggering a camera? I'd like to use the Mindstorms EV3 kit for building a hyperlapse photography rover where it moves, ...
0
votes
0answers
52 views

How tall is a standard LEGO minifigure? [duplicate]

Sometimes I build towns of LEGO buildings, and occasionally the minifigures will get stuck in a low roof or underhang (pun intended). Does anyone know the height of a standard LEGO person in bricks as ...
0
votes
0answers
342 views

NXT software V2.1 runtime installation error in windows

My system configuration : Windows 7 Home Premium 64-bit Service Pack 1. When I try to install NXT software v2.1, at the beginning itself I am getting the error below: Microsoft Visual C++ runtime ...
0
votes
0answers
97 views

Old - New grey. Why? [duplicate]

Possible Duplicate: What is the bley (blay) color? In 2003/4 LEGO changed the hue of both greys (light and dark) The newer tones are blue-er. (The new is often referred to as bley (bl ue - ...
0
votes
0answers
336 views

What is the best way to clean LEGO bricks [duplicate]

Possible Duplicate: Lego cleaning techniques and tools What is the best way to clean LEGO bricks for trading or resale to other enthusiast? The bricks are from a Non-smoking environment, ...
-1
votes
1answer
311 views

How do I get started with Mindstorms NXT 2.0? [closed]

I need help programming a NXT 2.0 Lego Mindstorms. I want to make the robot turn, stop, go back, etc. when the color sensors see certain colors. For example when the robot sees red it stops then ...
-1
votes
2answers
80 views

When did the Lego company begin?

When did the awesome Lego company begin? Who created it? What was their purpose/goal? I think it would be neat to learn about this.

15 30 50 per page