1
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1answer
271 views

Where can I get a large number of LEGO bricks cheap? [duplicate]

Yes, I see other people's amazing MOC's all the time, and think, "man, I could totally do that if I had enough bricks." The problem is, I don't really know where to look for a whole bunch of LEGO ...
1
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2answers
107 views

Which program do I use to program my rcx 1.0 or 1.5

I am getting an RCX and I know it is ether a 1.0 or a 1.5. Which program do I use to program my RCX?
1
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2answers
221 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 ...
1
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1answer
159 views

How to enter wifi-password on ev3dev?

After successfully installing ev3dev and getting the USB connection working I now want to get my wifi-dongle working (or rather connecting). The dongle is successfully found and my LAN is displayed. ...
1
vote
1answer
86 views

How would I make a decal for a 2x2 dome brick or a 2x2 round slope brick?

I am looking to make a decal for a custom droid using either the R5-series head or the regular dome R2/R3/R6/R7/R8 head. However, I do not know the process for creating droids. Does anybody know how?
1
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1answer
53 views

What does 191767 mean in “Paper, Cardboard for Set 4336 #1, Scala Cat (191767)”

In BL http://www.bricklink.com/catalogItem.asp?P=4336cdb01 This cardboard's name is "Paper, Cardboard for Set 4336 #1, Scala Cat (191767)" What does "(191767)" mean here in the description?
1
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1answer
299 views

Mindstorm EV3 no longer recognises SD card

I followed the instructions to install leJOS on an SD card, to get Java support for the Mindstorms EV3 brio. The brick detected the leJOS files and processed the whole installation procedure ...
1
vote
1answer
2k 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 ...
1
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1answer
83 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.
1
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1answer
425 views

Dimensions for EV3pieces

I need to know the dimensions of the EV3 pieces for a school project (in mm). Does anyone know?
1
vote
1answer
257 views

Trouble with Commander app: Using buttons to control motors

I'm having trouble with the Commander app for Android. I've put an EV3 into set 8448. I'm using one of the large motors for propulsion and a medium motor for rack and pinion steering. I don't have the ...
1
vote
1answer
320 views

Lego EV3 - sending direct commands over RFCOMM Channel (Objective-C, Xcode)

I successfully open RFCOMM Channel to Lego EV3 brick with code: IOBluetoothDevice *device = [IOBluetoothDevice deviceWithAddressString:@"xxxxxxxxxxxx"]; IOBluetoothRFCOMMChannel *rfCommChannel; ...
1
vote
1answer
154 views

Is it possible to use a LEGO NXT ultrasonic sensor for a LEGO train crossing?

I was looking at LEGO NXT components, and I found the ultrasonic sensor. I was wondering that if I put off to the side of the track, the nose of my train would activate the sensor, thus operating the ...
1
vote
1answer
533 views

Why I get this “message unable to compile some documents for deployment ev3”?

I have a LEGO Mindstorms EV3 program that I was working on for a long time but recently and suddenly when I try to download the program the software displays the following message: "unable to ...
1
vote
1answer
562 views

EV3 bluetooth controller for mac

Is there a suitable EV3 controller for mac? It should be a compatible alternative from the official EV3 controller in the iOS app store or google play.
1
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2answers
817 views

How to install NXT Firmware 1.28?

Lego is giving 1.31 from their website but I need 1.28, how can I install it?
1
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1answer
86 views

How can I make product suggestions to TLG?

I'm sure lots of is have had ideas for products, parts, sets, themes or services that we'd like LEGO to produce. What are the best ways of proposing them to TLG, and of persuading them to take on our ...
1
vote
1answer
143 views

Link 1 x 6 with Stoppers Part 2739b

Will Link 1 X 6 connect to Liftarm 2 Axle Holes and Pin / Crank (Part 33299)? The Link will be attached to a coke can, that needs to drive a crankshaft. 2739b from Peeron 33299 from Peeron
1
vote
2answers
261 views

Robot that searches for lights

I use Lego Mindstorms NXT 2.0. I want to schedule my robot to move to where there is light αnd then when it finds it (a large amount of light, for example 80%) to stop and move another motor for 30 ...
1
vote
1answer
177 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 ...
1
vote
1answer
230 views

How do I Build a LEGO Digestive System? [closed]

How might I build a LEGO model of a digestive system? I think it could be a good way of helping my son with a science project. Either building plans, instructions, or any help with getting started ...
1
vote
1answer
332 views

EV3 Event Delegation

My problem is that the robot, which should just remain in the program until the Escape Button is pressed, just stays in the while-loop. The current code looks like this: using System; using ...
1
vote
1answer
755 views

“The type or namespace name ”Brick“ could not be found” Xamarin Studio with MonoBrick

I managed to establish a wifi connection with the Ev3 Brick via WinSCD and am programming the Ev3 with XamarinStudio/Mono Develop(http://xamarin.com/studio "XamarinStudio"). My problem is that "The ...
1
vote
1answer
398 views

ERROR CODE 7- Cannot download needed file for the program

I am kind of new in LEGO MINDSTORMS, I tried to download a program to the NXT robot and got the Error code 7- "Cannot download needed file for the program" - can someone tell me what should i do?
1
vote
1answer
274 views

Linear Actuator of the boom of 42006 jams

I just built a 42006 excavator, and the Linear Actuator jams such that it can't be rotated. I think that the overly sharp angle of the u-joint at the top of the boom is the reason. Is there a ...
1
vote
1answer
2k views

Getting the IR Tower working with RCX and RobotC [duplicate]

Possible Duplicate: Lego Mindstorms RCX RIS 2.0 IR tower Windows 7 / Windows XP driver Trying to get RobotC to work with my old RCX 2.0. I'm running windows 7 64 bit. I've connected the IR ...
1
vote
0answers
8 views

When did writing change from Duplo to Lego

I've looked at some of the Duplo bricks I grew up with, and compared them to newer ones. I've noticed that the knobs on the older bricks say Duplo, while the newer ones say Lego. When did this ...
1
vote
0answers
20 views

How to speed up the disassemble of big lego technic sets (e.g. 42043 Mercedes-Benz Arocs) [duplicate]

Is there any ways to help speed up the disassembly process for big lego Technic set such as the 42043 Mercedes-Benz Arocs?
1
vote
1answer
59 views

Need help identifying these castle pieces

Wondering which set these castle pieces are from?
1
vote
0answers
26 views

How to pass an unknown type as a function parameter in NXC?

I was trying to do it as in a regular C, with void*, but it didn't work. Is it possible to pass it in NXC? If it is- how to do it?
1
vote
0answers
63 views

Does LEGO still exchange the Mindstorms NXT bricks with flicker problems?

I'm new here. Does LEGO still exchange the Mindstorms NXT bricks with flicker problems? If not, does anyone know of someone willing to try and fix them for a fee or barter? Many thanks in advance!
1
vote
1answer
76 views

EV3 won't connect through bluetooth anymore

I was using VS2015 (C#) to write simple programs for my EV3 using a bluetooth connection. This was working fine for several days and then suddenly stopped. I can't for the life of me figure out why. ...
1
vote
1answer
36 views

How many Bionicle store displays were created?

I'm an avid Bionicle collector and am curious as to how many unique store display tubes were created during the lines original run. To add some known information to my question I KNOW there was a Tahu ...
1
vote
2answers
97 views

Looking for set to go with a specific brick [closed]

I have a bunch of random Lego pieces and looking to see if they come with a specific set. I have a picture but not sure how to post. Is anyone able to help?
1
vote
1answer
66 views

How do I make instructions from my .ldr/.lxf files on OSX?

I'm on OSX and I've got a bunch of models made in Lego Digital Designer. They look awesome! Now I want to make instructions. Q: how do I get from my .ldr files to images or PDF? I'll take ...
1
vote
0answers
23 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 ...
1
vote
0answers
61 views

NXT (NXC) Programs are too slow

I am using Bricx Command Center to write some NXC code for a side project. I am working with the MindSqualls C# Library in Unity and am trying to figure out some ways to use the NXT robots in an event-...
1
vote
0answers
34 views

HiTechnic Color Sensor analog

HiTechnic sales support said that HiTechnic color sensor hasn't been manifactured yet. Currently it's out of stock in HiTechnic shop. Is there any analog of this sensor except NXT/EV3 color sensors?
1
vote
0answers
86 views

Is there an alternative replacement motor piece for 4.5 V Trains?

Is it possible to find on a market a simple 4.5V electric motor, that can be installed into LEGO Part 564c01? The service pack No. 5000 is more and more difficult to find.
1
vote
1answer
93 views

Where to get additional part library graphics for BlueBrick layout designer

I love BlueBrick, the track and layout designer from developer Alban Nanty. I have been using it for years and it is the best tool I have found for designing a full layout including train tracks. ...
1
vote
1answer
39 views

Can I change the spec of a MyBlock [duplicate]

If I create my own block (MyBlock) with one param and later discover that I should have used 2 params or different icon or something like that, what do I do? Is it possible to change the existing ...
1
vote
0answers
31 views

Mindstorm RIS 2.0 installation on Windows 10 [duplicate]

I recently bought a RIS 2.0 but was unable to install the program onto my laptop running Windows 10 (now). I tried it on my office computer running Windows 7 and the installation was successful. The ...
1
vote
0answers
106 views

How does the LEGO Group transport its products? Can LEGO bricks be recycled? [closed]

1. Hello, I am doing research on LEGO for a school project. I want to know where are the LEGO factories? How do the LEGO products get from factories to the stores around the world? What shipping ...
1
vote
1answer
277 views

Clicking Brick Syndrome after using Raspberry Pi

I have a Mindstorms NXT brick, and when switching it on recently, it just started clicking. I have tried many different ways to fix it, but nothing has worked. I've done a soft reset, hard reset (...
1
vote
1answer
174 views

What is the most cost effective way to get basic bricks in bulk?

I've seen another question (What's the most cost effective and efficient way to buy bricks?) that asks where the best place to buy specific bricks in small quantities are. That is helpful when ...
1
vote
1answer
94 views

Help with this .nxc Tripod program

I am getting a file error when I try to run this on my NXT 2.0. It's my first time using NXC and the program compiles and transfers fine... I tried replacing the batteries, the only other thing is ...
1
vote
1answer
120 views

What are the measurements of the different Lego instruction booklets?

I've noticed that there are at least three different sizes (eg 7.8"x5", 4"x5.8" and 7"x8"). Are there other sizes?
1
vote
0answers
47 views

Is there any way to find misplaced bricks in LEGO NXT Programming?

I am working on a Mindstorms NXT project. Due to annoying bug (cannot find terminal hotpoint thingy) I can't delete a specific block, and if I do so, part of the program will be cut off from the main ...
1
vote
0answers
45 views

EV3 Programme won't load to brick

I have installed EV3 on my PC and am trying to load a program into an NXT 1 Brick. When I click the down load button on the EV3 screen the Brick beeps twice and the program does not load. What am I ...
1
vote
0answers
57 views

Asking questions about lego [closed]

I'm looking for someone to answer a few questions for me so I can do a school project. It would be helpful if someone would answer my questions on yahoo.com Thanks if you do it.

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