0
votes
0answers
2 views

Spring for Lego MOC Simple Suspension

What is the most appropriate dimension (e.g. 20mm x 3.33mm, 5N/mm) of the metal spring for this Lego MOC Simple Suspension so that it will not cause damage to the Lego part surrounding it?
0
votes
0answers
3 views

How to disassemble this Technic combination - Part 99009 from Part 99010?

How should I disassemble the following parts that is newly assembled? 99009 Light Bluish Gray Technic Turntable Small Bottom 99010 Black Technic Turntable Small Top
0
votes
1answer
20 views

Are there Lego Hygrometer sensor

Currently, there are light, ultrasonic, touch and sound sensor but are there hygrometer sensor from Lego?
21
votes
1answer
1k views

Why are old LEGO bricks more brittle than new ones?

My vintage LEGO sets (circa 1980) are difficult to unbuild. Some pieces are prone to break. Did the plastic recipe change with time or are the bricks simply degrading?
0
votes
1answer
21 views

Lego Large Shock Absorber alternatives

Are there cheaper alternative to Large Shock Absorber with Very Hard Spring (Part No. 15035 / 18405 / 95292 / 95292c01)?
0
votes
1answer
31 views

Are there any Lego sets that have these two parts?

Are there any Lego sets that have the following part: Part 57518 (Link Tread Wide with Two Pin Holes) Part 15035 / 18405 / 95292 (Large Shock Absorber with Very Hard Spring)
0
votes
2answers
15 views

Why remote control are seldom used in technic sets?

(As of Jul 2016) According to this, it mention that currently there are a total of 376 technic sets. However, this information mention that only 6 of them have the remote control function. (This means ...
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.
0
votes
0answers
27 views

Alternative to Lego Education 9580

Are there any sets that are similar to LEGO Education 9580 and available to the general public? This is because the LEGO Education 9580 is only offered to educational institutions.
0
votes
0answers
60 views
0
votes
0answers
6 views

Connecting Lego WeDo USB hub to portable Power Bank

Is it possible to connect the lego usb hub from education WeDo series to a portable power bank for power? WeDo USB Hub Portable Power Bank
4
votes
1answer
191 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 ...
4
votes
1answer
43 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
32 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
47 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
30 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
125 views
4
votes
1answer
108 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
49 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
180 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
82 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
104 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
43 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
68 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
734 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
96 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
97 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
81 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
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. ...
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
85 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
110 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
88 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 ...

15 30 50 per page