2
votes
5answers
11k views

Where can I download the EV3 education edition software for free?

I have a site license but I'm not able to find the download for the software anywhere. Any help would be greatly appreciated.
4
votes
1answer
174 views

Trying to work out where a 'spare' part goes on Wall-E (21303)

I've built a wall-e (set number 21303). This is the corrected version - and I've found, in addition to the 'obvious' spares, like 1x1 flats and round antennae, I have a 4x4 dark grey (4243831) left ...
0
votes
0answers
48 views
3
votes
1answer
38 views

Help! Please anyone tell me which Lego vehicle set I have here?

Please can anyone help identify this kit. I received it in a bag with 5 on the outside and the year 2011. I'm really keen to build it but need some help identifying it so that I can get the ...
0
votes
1answer
27 views

Where can I go to get good custom lego minifigures?

I want certain lego minifigures, but lego doesn't make them. I would like to find someone or someplace to get some good custom minifigures. I can pay.
3
votes
1answer
40 views

Best set to build a tracked vehicle?

I want to build a tracked "all-terrain" vehicle myself (MOC), which should have the ability to climb over obstacles. Something alike https://www.youtube.com/watch?v=PXVO-wbWKxo Now I'm looking for ...
29
votes
5answers
11k views

How are LEGO sets designed?

I've often wondered how it is that LEGO goes about creating new sets. I can easily imagine a person sitting in a room all day with unlimited pieces of every shape but with some of the complicated sets ...
3
votes
0answers
28 views

Is is possible to build a decimal to binary converter (binary counter) with lego?

I have seen many papers on logic gates build with lego but I want to make a decimal to binary converter. There should be a counter as an input, with each press of the counter, the output 8 block ...
3
votes
1answer
121 views
4
votes
1answer
103 views

How to disassemble this Technic combination?

How should I disassemble the axle (7) attached in this model? (I tried using a Brick Separator but failed to remove it.)
2
votes
1answer
48 views

Identify 2011 set number

This bag is from a 2011 set. It's 150-250 pieces. It appears to be a car.
3
votes
1answer
179 views

Lego Digital Designer on OS X El Capitan?

Since the El Capitan 10.11.2 upgrade some options are gone in Lego Digital Designer. In the Preferences menu the "Outlines of bricks" and "Advanced shading" are options unselectable. The annoying ...
18
votes
7answers
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?
4
votes
1answer
80 views

What is this part? It looks old (Pictures included)

I found this part in our lego collection, and I'm really curious what it might be, it looks old and says "Pat. pend" on the back. Do you know? Thanks!
1
vote
1answer
100 views

Is it possible to build a steering system without using gear racks such as part 87761?

Is it possible to use part 6575 (and together with other Technic pieces) as an alternative to part 87761 for a steering system? (I am trying to use Technic pieces from Technic 42030 set to simulate ...
23
votes
3answers
4k views

How does one get a job as a LEGO designer?

I always fantasized on the mysterious (and admittedly cool) job of LEGO designer. Is there anyone who knows what it takes? Do you need to go to the Lego university and get good grades? Is there any ...
0
votes
0answers
15 views

Designer: how would one add custom made 3rd party pieces to the software?

There are a number of producers of custom LEGO compatible pieces, how would one add such a custom piece to the Designer software?
7
votes
1answer
193 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 used ...
7
votes
1answer
224 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 ...
3
votes
1answer
41 views

Which parts are these? (Picture included)

In an effort to identify sets in a second hand random Lego collection we bought, we found some really obscure parts. Do you know which parts these are? Thanks!
2
votes
1answer
66 views

Using hex key to disassemble Lego Technic pieces can cause any damage?

Does using the right size hex key (Allen key) to speed up the disassembly process cause damage to the Lego Technic pieces?
22
votes
5answers
805 views

How do you plan large structures for easy and safe transport to shows?

Imagine I am building a large display that will cover many square feet and have both tall buildings and lots of small details. What are some techniques for making these things modular? Is it safer to ...
3
votes
2answers
617 views

How can I tell if minifigures are custom-made or LEGO Originals?

I see that on Amazon you can find a lot of minifigures but I can't tell if they are cheap knock-offs or not.
5
votes
1answer
733 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 ...
6
votes
2answers
20k views

Lego Mindstorms RCX RIS 2.0 IR tower Windows 7 / Windows XP driver

So I've recently dug up my old Lego Mindstorms RIS 2.0 (RCX) and have spent the past few days trying to install it into my Windows 7 laptop. It worked fine, except it could not find the correct ...
4
votes
1answer
95 views

Non-working technic system

Recently I've been working on a car which when going forward is fast, and when going backward automatically goes slowly. Here are two photos of it: (Just replace the text by "input") As you can see,...
6
votes
1answer
95 views

Why was the green separator phased out?

The green brick separator seemed indestructable, and would separate all bricks that I had without fail. this orange thing is dinky and flimsy compared to the others. So, I ask, why did lego think that ...
19
votes
6answers
2k views

Can an axle be removed from this Technic 'brick paradox'?

This blogpost on Technic Bricks briefly explains a few 'brick paradoxes' or dead ends. This particular model seems impossible to disassemble by hand: How can I remove the axle without damaging/...
3
votes
1answer
79 views

How to speed up assemble big lego technic sets (e.g. 42043 Mercedes-Benz Arocs)

Is there any ways to help speed up the assembly process when building big lego Technic set such as the 42043 Mercedes-Benz Arocs?
1
vote
1answer
75 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. ...
3
votes
1answer
247 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 ...
1
vote
1answer
72 views

Lego controller 8879

How does the Lego technic 8879 controller work? When you make it go forwards/backwards and let go does it stay at that speed like the more recent helicopters or does it go back around? And how does it ...
18
votes
4answers
5k views

Why does LEGO now use studless technic designs?

It seems to me that sometime between 1998 and 2006 (between the Mindstorms RCX and NXT), LEGO switched from using studded technic bricks (like this:) to studdless beams (like this): In my ...
3
votes
2answers
40 views

How can an EV3 motor “remember” it's starting position?

I am currently working on a project that uses large motors. I want the project to return to a "starting position" (0,0,0) at the touch of a button so that it can be used multiple (identical) times. ...
48
votes
4answers
5k views

Is it possible to build simple logic gates with LEGO mechanics?

I built a simple bitshifter in Minecraft yesterday. I wondered if something like this could be built with LEGO? Maybe there is a possibility to build gates with rubber bands and those movable ...
14
votes
3answers
3k views

How to build bridge using 4.5/12v train rails from 1969 Lego brochure

I am interested in building a bridge for my layout and stumbled upon this forum post in which user 'Istokg' posted a picture of a train bridge made from the blue rails used in the pre-1980s train sets....
2
votes
1answer
109 views

How to clear off oils in a way that will not damage the plastic?

Especially with the pneumatic cylinders, so it has to not make the metal rust too. Also, it is oxidized vegetable that is stuck in there, inside the pneumatic cylinders. And it started to make it all ...
2
votes
1answer
202 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?
0
votes
1answer
84 views

Strange Inverted slope Identification

I have a brick that is similar to a 45 degree inverted slope 2x2 except where the un-sloped flat face should be there is a rectangular cavity into the brick _______ / ____| / | / ----| -...
4
votes
2answers
107 views

Tools to unbuild a model more easily?

Are there any good tools out there to help unbuilding a model? I.e., removing axles from beams, ... Something like the famous http://shop.lego.com/en-US/Brick-Separator-630, but for technic models.
0
votes
1answer
87 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 ...
3
votes
2answers
205 views

Identify brick with internal battery, light and sound

I just bought a bulk lot of second-hand bricks and found this odd one inside. It has a black panel on one side and when pressed it plays a screeching sound. Through the transparent purple top I can ...
0
votes
1answer
66 views

Where can I find a good tutorial on programming with Lejos?

I want to get started with LeJOS and use Java to check to see if an EV3 touch sensor is pressed, but I can't find any decent tutorials. Are there any good resources for this?
5
votes
5answers
4k views

Direct control of EV3

I need to control a car with an EV3 brick. I want to control it remotely. The trouble is, I'm using an education set so I don't have the remote. What means of controlling it remotely could I use? I ...
3
votes
2answers
318 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 ...
5
votes
1answer
106 views

Working with Curved Bricks

I'm hoping to stack curved bricks. There are two slots along the edge to allow the bricks to be set on plates. These become unsightly when the bricks are stacked atop each other. Has anyone seen any ...
3
votes
1answer
45 views

How do you program mindstorms to keep doing a task until either the IR OR the colour sensor state changes

How do you program mindstorms to keep doing a task until either the IR OR the colour sensor state changes. I would like to use the wait block but it can only be either the colour sensor or the IF ...
6
votes
2answers
72 views

Is it possible to damage a pneumatic pump/motor by applying too much pressure?

I've recently bought the Mercedes-Benz Arocs model, which contains a compressor (i.e., a pneumatic pump which is operated by an L motor). I was wondering whether you can ruin your pneumatic system ...
8
votes
2answers
2k views

How to sell massive, vintage and unsorted lego collection with manuals?

So I was a big LEGO collector as a child in the early 1990s. The genres I have are town/city, pirates, and castle. To store them, I broke them all down to fit into 2 giant plastic tubs. I still have ...
1
vote
1answer
91 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. ...

15 30 50 per page