0
votes
2answers
104 views

The Mindstorms EV3 Software crashes on OS X Yosemite 10.10.3. What do I do?

It's crashing on startup which is really irritating. When debugged with terminal it says this: Unhandled Exception: System.UnauthorizedAccessException: Access to the path is denied. [ERROR] FATAL ...
0
votes
2answers
163 views

Do you use the plastic buckets for purposes other than organizing your bricks?

We have several bucket sets like #5560. Now that our collection is growing, it's becoming harder to find what we need in the buckets even though we have them sorted by color. Plus they are in a ...
8
votes
1answer
551 views

Connecting to NXT Brick via Processing over Bluetooth

I am attempting to control my NXT model via the Processing programming language rather than the provided language based on LabView. When I can establish a connection over Bluetooth, this works rather ...
3
votes
1answer
325 views

Is there a free EV3 simulator (virtual machine) for the Mac OS?

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 ...
3
votes
1answer
508 views

How to close color Sensor properly?

I want to get data from the color sensor with Bluetooth. I can get data but when the program terminates, the color sensor dose not close even though I call function close() on the color sensor. The ...
2
votes
1answer
185 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
62 views

Lego RCX hardware schematic

Where can I find the hardware schematic for the Lego RCX brick? I spend a lot of time but unfortunately didn't find any useful information.
2
votes
1answer
195 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?
2
votes
1answer
53 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 ...
2
votes
1answer
394 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
165 views

EV3 Rapt3r's head cable interfering with slithering

My Rapt3r is working great, except that the cable that goes from the head to the "Intelligent Brick" physically interferes with the slithering on the side on which it is plugged (port 4). Physically ...
1
vote
1answer
38 views

Using the NBR 1036 Barometer with the EV3

I just purchased the HiTechnic Barometer from LEGO, thinking the Block was available for the EV3. Theory says that I can use NXT Block in the EV3. Can anyone point me in the right direction?
1
vote
1answer
59 views

Bluetooth communication between computer and nxt using RobotC

I'm thinking starting a project involving controlling the movement of a NXT robot from the PC using RobotC. Is it possible? Does anyone have a simple code solution?
1
vote
1answer
227 views

Dimensions for EV3pieces

I need to know the dimensions of the EV3 pieces for a school project (in mm). Does anyone know?
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, ...
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 ...
12
votes
0answers
419 views

What's the exact opacity and translucency of transparent bricks?

As answered in this question, transparent bricks are made of PC (polycarbonate) and as listed in this answer and on Brickipedia there are fourteen transparent colors: 40 Transparent (clear) 41 ...
8
votes
0answers
228 views

PosRegEnable - How to change motor parameters?

I want to set PID parameters for a faster 'attack' when using PosRegEnablePID() on a motor. I am compiling with nbc/nxc 1.2.1 r4 mac osx fatbinary using -Z2 and -EF flags. But the compiler says: # ...
7
votes
0answers
167 views

How can I control nxt 2.0 robot with a Wiimote in labview?

I am building a robot with Labview for LEGO Mindstorms and I have wanted to hook up the robot to move based on a Wiimote or Wii remote. However, I have not found a file to download to enable me to do ...
4
votes
0answers
67 views

PC To NXT Brick via Bluetooth

We have a fully-working java programme which can connect to another computer and can send messages from this(both sides run java and we used SPP Server and Client), however when trying to connect to ...
4
votes
0answers
498 views

Known quality control issue with 10234 Sydney Opera House?

I have just completed 10234 Sydney Opera House, with one white half-shell (Bricklink: 41749 White Wedge 8x3x2 Open Right) missing. Both the Bricklink inventory and the Lego instructions show 34 of ...
3
votes
0answers
41 views

Where does the EV3 software store its crash reports?

I cannot find where the crash reports generated by my EV3 software are stored. I have looked where it tells me to, but I can't find any.
3
votes
0answers
74 views

What electrical contact material is used for PF Connectors?

I'm designing my own PF electrical connector and I want to have the same functional characteristics as the original Lego brick. Could you please let me know which electrical contact material is ...
3
votes
0answers
231 views

LEGO turing machine using Rascal

I followed the instructions on LEGO Turing Machine and succeeded to build it. Next I've tried and failed to program it using NXT Mindstorm GUI. The site mentions a Rascal framework, but it doesn't ...
3
votes
0answers
157 views

NXT shuts down in 5 minutes

I have an NXT brick that will always shut down after 5 minutes. No, it is not the sleep timer. Documentation from the NXT Hardware SDK, page 17, states that if the ARM7 processor does not send back ...
2
votes
0answers
129 views

My building is developing gaps and spaces

I am building a large project, and there are spaces developing between bricks and plates. I've been working on it for almost a year, and some places are 20+ bricks high. What can cause this over time? ...
2
votes
0answers
102 views

8258 Headlight assemblies

Anyone else having a problem with with headlight assemblies on 8258 crane truck? I can't seem to fit them in due to interference from fog light bar. Thanks
2
votes
0answers
403 views

RCX 1.0 downloaded firmware successfully with RIS 2.0 but does not run any program

I have installed correctly the RIS 2.0 in an old laptop running Windows XP and I successfully downloaded the firmware through the RIS 2.0 to the RCX 1.0, following the standard setup instructions. ...
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 ...
1
vote
0answers
32 views

Block Platform parameter is not instanciated

I used Simulink to write a program for LEGO Midstorms NXT. I can post the design if needed. The problem is that when I want to run it on hardware, it gives the following error: Lego mindstorms NXT ...
1
vote
0answers
56 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 ...
1
vote
0answers
58 views

RCX + java + usb-to-serial

I am trying to get an old RCX working with leJOS. I already have it working with NQC and BricxCC. While NCQ/BricxCC seems to recognize my usb-to-serial (which appears as "COM5" to the OS), the leJOS ...
1
vote
0answers
139 views

Can I use EV3 with a TETRIX motor?

What program can I use to control a TETRIX motor through the LEGO EV3? I've heard that RobotC currently cannot be used for this. Has NI released a Labview version which I can use to control TETRIX ...
1
vote
0answers
159 views

Issues connecting the EV3 on Windows 8.1 64bit

I have got a computer with Windows 8.1 64 bit and I have installed LEGO Mindstorms EV3 software Home edition and tried to connect the EV3 brick to the computer, but the brick didn´t connect to the ...
1
vote
0answers
191 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 ...
0
votes
0answers
19 views

LEGO Mindstorms not downloading to brick properly

When I try to download a program to my Mindstorms brick, the download immediately completes, and the program is listed on the brick menus, but it will not run the program. Also when I open the memory ...
0
votes
0answers
36 views

How can I extract part id or design id from a photo?

Is there any software/site that tells me which LEGO parts exist in a photo? I would love to get a csv of parts from a photo.
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 ...
0
votes
0answers
29 views

What causes the NXT Error 1055 in LabVIEW?

The NXT device won't work. I made a program that is an move forward unlimited, and it only rotates the right wheel a tiny bit, before it stops. I tried replacing motors, replugging in cords but ...
0
votes
0answers
62 views

LEGO Technic Interface A

A few days ago, a friend offered me one set 9750 LEGO Technic Interface A with the Interface Card and Cable (IBM compatible) but without software. Can someone share the installation software (LEGO ...
0
votes
0answers
127 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 labelled A,B,C. I want, according to the color reading by the color sensor on ...
0
votes
0answers
45 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?
0
votes
0answers
52 views

How to transfer my F# exe file to NXT brick

I have developed a project in F# with MonoBrickFirmware library. I want to transfer the project to NXT brick, and run it.
0
votes
0answers
36 views

After adding a MyBlock icon to the EV3 palette of MyBlock icons, how can the new icon be associated to an existing MyBlock?

After following the advice given in adding a MyBlock icon to the EV3 palette, can the icon be associated to an existing MyBlock? Something better than copy/paste the contents of the existing MyBlock ...
0
votes
0answers
61 views

Are there any additional robo center downloads for the nxt-g software?

It would be nice if there were additional entries under the animals, vehicles, machines and humanoid tabs. Supposedly there was some official LEGO web component to the software which appears to be ...
0
votes
0answers
288 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 ...