17
votes
4answers
6k views

Can you program Lego Mindstorms with the Scratch programming language?

My child is learning programming using Scratch in school. Can she program her Mindstorms using Scratch?
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.
3
votes
2answers
111 views

I need a block that can combine a movement program with NXTbee radio

I am a student. I am working on a science project using LEGO Mindstorms robots enhanced with NXTbees creating a mesh network. My engineering mentor has me using LabVIEW. I am trying to find a block ...
7
votes
3answers
939 views

What are the torque limits of gears?

I am using Lego in the classroom to introduce students to geared machines. As part of this I am asking them to design a winch, using a small 1.5V DC motor and a collection of the common Lego gears, ...
2
votes
2answers
95 views

What's the maximum pressure one airtank can withstand and how to tell its limit?

I bought a airtank and using it to support many v2 pneumatic cylinders, while I'm using a v1 pump and one motor to pump air to this air tank. Since another airtank or a lego pressure gauge is very ...
3
votes
2answers
260 views

How much torque can a lego axle handle?

from to this question, it seems that the gears are stronger than the axles, which begs the question of how strong are the axles? if you connect one of the stronger motors, such as say the buggy motor: ...
1
vote
1answer
159 views

EV3 brick freeze during run big program

EV3 brick sometimes freezes while executing huge programs and do not react on buttons and bluetooth (connect, start/stop program). Only way to continue work is hard reset. We discovered that freeze ...
2
votes
2answers
84 views

What set are these bags? Detectives wanted

I just bought this collection of LEGO parts. I am mostly curious about the sealed bags. Most are numbered 2011. Thanks for the input in advance! More detailed pictures: http://imgur.com/a/ebkvz
17
votes
16answers
6k 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 ...
4
votes
1answer
60 views

Looking for instructions to build a hobbit hole without 'custom set pieces'

I've searched on 'rebrickable' for anything hobbit related, but I can't find it. This is what I'm thinking of: 79003-1: An Unexpected Gathering I'd rather buy a large bucket of 'free for all' ...
4
votes
1answer
54 views

LEGO old discontinued model?

Does anyone know an old model from Lego that was a 3 in 1 that featured a black sports car, black truck and a drag racing car?
7
votes
4answers
476 views

Help identify mystery piece and set it could go to

More mystery parts from the bags of LEGO pieces we bought. I can't find a LEGO symbol on it. Is it a LEGO part or some other brand?
18
votes
2answers
8k views

How much heat can LEGO bricks withstand?

I was thinking on making a decorative LEGO candle holder. It would be made out of regular ABS LEGO bricks, but also transparent ones. Because there will be an open flame involved, I want to make sure ...
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.
3
votes
1answer
91 views

How to make a regular pentagon from technic bricks

For the purposes of this build, we need a pentagon (figure with 5 sides), that is regular (all sides have equal length), and it needs to be able to be mounted on a build (like a wreath) by a ...
3
votes
2answers
158 views

Where is this blue Bionicle figure from?

Please help me identify this blue Bionicle figure.
31
votes
17answers
35k views

LEGO cleaning techniques and tools

Previously I've used toothbrushes but maybe these would eventually scratch the surface? What have you used? And was it easy? As well as cleaning, what about drying and buffing? Anyone tried polishing ...
2
votes
1answer
74 views

BPA in older Lego

I have some older DUPLO sets. I am concerned about the BPA that might be in them. Do any current sets of DUPLO or LEGO contain BPA? Did they in earlier sets?
0
votes
2answers
91 views

How can I find the directions to this Lego bag?

I have a Lego bag unopened but we lost the directions! Can someone help? I think it's Minecraft.
1
vote
1answer
40 views

Interface between keyboard and NXT mindstorm

I want to make an NXT program that handles key presses from a user. First, I'd like a message to display asking the user to choose a key on the keyboard (S or M), and then depending on the chosen key ...
1
vote
1answer
48 views

EV3 software crashes on Windows 8 laptop

My cousin has Windows 8 x64 netbook laptop. When he tries to start the application he gets .NET framework error and I can see following text in the log file: +000,016 >> MINDSTORMS EV3 launched ...
13
votes
2answers
28k views

Where can I find a list of all LEGO sets ever released

Can I get a full list of every set LEGO has ever come out with?
1
vote
1answer
46 views

EV3 Installation failure on OSX El Capitan 10.11.3

Hi This is the first time I've tried to use EV3 software since upgrading to El Capitan. Before then, it worked perfectly. When I tried to launch the application a message pops up saying it has ...
20
votes
4answers
41k views

What is different between the EV3 Home and Educational sets?

The newly announced LEGO Mindstorms EV3 sets for home and education have some differences, but it isn't clear to me what they are, specifically. It seems that have different sensors, perhaps ...
3
votes
2answers
154 views

How do I diagnose a problem with electronic bricks and motors?

My children and I recently assembled the 42030 RC VOLVO L350F Wheel Loader (aside: with the 1,600 pieces and time investment, this set will likely survive to the heat death of the universe intact ...
8
votes
2answers
5k 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.
4
votes
1answer
1k views

Why are Lego products so expensive in Europe?

Comparing a few Lego products at the official online store, I found U.S. prices seem to be consistently around 70% of those in Europe given current currency exchange rates. That's a surprising ...
4
votes
3answers
232 views

LEGO minifig authenticity

I bought 3 mini figures from Amazon because I wanted specific mini figures and did not want to spend $30 plus doing so with bag ordering and opening. I got the figures and they look authentic. The ...
1
vote
2answers
84 views

draw program for Lego MOC models?

I want to design a MOC digitally I can do this with ldraw but, are there any drawing programs better than ldraw to make models of lego ? kind regards, Peter
3
votes
1answer
201 views

Is there a changelog for any firmware updates on an EV3 brick?

When a firmware update is released for the Mindstorms EV3 brick, are there usually any changelogs for them explaining what's been added or changed? If so, where can they be found?
1
vote
2answers
343 views

What software should I install for NXT on OSX El 10.11.2 Capitan?

Sorry, I am brand new to Mindstorms and a bit overwhelmed. I bought an NXT robot over Christmas and am confused what software I should install. I installed the EV3 software. The bluetooth doesn't ...
0
votes
1answer
130 views

Where are the 2 by 2 turntables in LDD?

I just updated to LDD to 4.3.9 today and I can't find the 2 by 2 turntable pieces. What section are they under now?
12
votes
3answers
6k views

Removing glue from Lego bricks

When I was five my Dad used some kind of a good glue to put together a set together so I didn't loose any pieces. Putting the ethics of that action aside, I want to split the bricks from another and ...
-4
votes
1answer
133 views

Are these real Lego figures?

Are these real LEGO figures or custom non-LEGO designs?
3
votes
1answer
87 views

Can someone please help me identify this antenna/rod part? It attaches to the bottom of a brick

These red antenna-like pieces have four flanges at the base. The base does NOT fit on top of a stud, but rather it will fit the underside/bottom side of brick. The two pieces can also be connected ...
4
votes
2answers
706 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 ...
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
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 ...
7
votes
3answers
4k views

How to sort complete sets from box of unsorted LEGO

My son has thousands of pieces of LEGO, but he has them all dumped in a box. Is there any way to figure out what sets they went to if I don't remember the names of them?
0
votes
2answers
66 views

What is an inexpensive camera for photographing Lego? [closed]

What is an inexpensive camera for taking pictures of LEGO? I currently use an iPad and I am not satisfied with the photo quality. I would prefer something 100$ or less, if possible.
1
vote
0answers
22 views

Printing an actual suit on a LEGO figure [duplicate]

I love LEGO bricks, and I'm always looking for more unique figs. I go on eBay all the time, and one person named onlinesailin makes AMAZINGLY detailed and cool guys. I want to know how to actually ...
4
votes
5answers
3k views

Does the Mindstorms EV3 software run on OS X El Capitan?

El Capitan was released a few days ago, and I want to upgrade. Will there be issues with the software, or will it run nicely on El Capitan? My Mac: Retina MacBook Pro 13", Early 2015
8
votes
2answers
165 views

What is the biggest base plate available?

I'm looking for as large a base plate as possible. Below is a 48x48 stud base, it's the largest I've seen. Are larger plates available? Either the thin type (as pictured) or the regular plate ...
5
votes
1answer
340 views

Identification of Batman / Joker Set

I went through the DC Comics Super Heroes and Batman categories of Brickset without being able to identify the origin of this bag of pieces. The only information are 135149 and a year, 2011, ...
2
votes
1answer
87 views

Lego Color Sensor - EV3

My son is using his EV3 with a color sensor. He is using the sensor to test the reflectivity of different materials. Can you please tell me what the letters "PCT" stand for?
1
vote
1answer
147 views

EV3 IR, ultrasonic senosor datasheets

I want to connect EV3 IR and ultrasonic sensors to my Arduino. Unfortunately could not find any good documents describing how to use/control them. Could you please help? Thank you very much.
2
votes
1answer
89 views

How to Motorize the LEGO Mars Rover

I am looking for some suggestions. My daughter is building the Mars Rover set (go here for the details: http://www.eurobricks.com/forum/index.php?showtopic=98222) for a presentation at school and I ...
0
votes
2answers
187 views

Why do LEGO sets have a minium age rating? [closed]

Many LEGO sets have minimum age ratings, such as 7-12, 9-14, and 16+. Why is this? Are the models really that different in terms of complexity? Also, why does LEGO often indicate that sets are not ...
2
votes
1answer
153 views

Tufts MAZE LabView Program Will Not Run on EV3

Through the 2012 LabVIEW for LEGO software package, I found an example of a maze from Tufts. I cannot get it to run on an EV3. It appears to just constantly execute the initialization. How can I ...
6
votes
2answers
139 views

Can anyone help me identify this Fabuland figure?

I found 2 of them in a box of LEGO I had as a kid, it fits the LEGO baseboards/bricks but I don't have a clue what it is or where it is from! My daughter is now the proud owner of my Lego (along ...

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