4
votes
1answer
108 views

How large is the face of a 2x2 45º brick?

I am attempting to make a decal for a roof tile, sort of like the computer face on certain bricks of the type. However, as there appears to be no template, how large is the face of a 2x2 45º brick?
4
votes
3answers
375 views

Is there a way to set a flat plane at an angle to horizontal of less than 22.5 degrees, but more than 0?

I am building an airplane with a wing dihedral (the wings angle upwards from the fuselage), but I am using parts 44302 and 44301 interlocked as designed: Unfortunately, one click up is about 22.5 ...
4
votes
2answers
455 views

How can I attach a Technic Linear Actuator to a EV3 Medium Motor?

I'm pretty new to serious LEGO building (never got past very blocky houses as a kid but got into Technic a couple of months ago) and need to connect a Technic large linear actuator (61927) to a ...
4
votes
2answers
564 views

How can I prevent my train from derailing?

I have motorized the Constitution Chase train by putting a PF train motor into the coal car. I disassembled the rest of the cars, down to the car bed, and let my kids build whatever train cars they ...
4
votes
2answers
371 views

How do I make my logo/mascot into a custom LEGO model?

I operate an Indoor Playground & Cafe and would love to find out how to make my mascot/logo into a 4' custom LEGO sculpture. Any assistance appreciated! A bit of looking indicates that LDD will ...
4
votes
3answers
2k views

Is the LEGO Midstorms EV3 software compatible with OS X yosemite?

OS X Yosemite (10.10) was just released yesterday. I want to upgrade, but I am worried that the EV3 software will be incompatible. What should I do? A. Upgrade B. Stay on OS X Mavericks (10.9)
4
votes
1answer
246 views

I bought a second hand pack of pieces and it looks like it may be a specific set

Hoping for help to identify a set of lego pieces. It definitely has a car wheel base, and the base boards are green.close
4
votes
1answer
383 views

How much does the NXT brick weigh?

I am working on a project that involves LEGO Mindstorms bricks but for some tasks I want to know the weight of the NXT brick, so I would be pleased if anyone can help me.
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
2answers
7k views

Where can I download the software for old RCX-era Mindstorms sets?

These days I've been coming across a lot of people who've purchased used MINDSTORMS sets from the RCX era, only to find they didn't come with a CD. And in order to use the set, assuming that using an ...
4
votes
2answers
753 views

21104 NASA Mars Curiosity Rover?

Has Lego made a public statement why they stopped producing the Curiosity Rover set? Each of its few production runs sold out in hours. Why won't they take my money? More importantly, how do I get a ...
4
votes
3answers
3k views

Invert motor block in EV3

New to EV3 so this should be simple. I would like my simple wheeled robot to go backwards. So I put two invert motor blocks, one for port B the other for port C followed by a move steering block. The ...
4
votes
2answers
287 views

How long does official Lego monorail track last?

Given the high cost of official Lego monorail track, I was wondering how long it tends to last/if there are any maintenance tips or tricks? I'm planning on using power functions to reduce the ...
4
votes
1answer
307 views

Lego Racer kit with Chargeable Cars

I have an old Lego set that I've lost all the documentation on. It's about 10 years old (I see ©2003 in various places). The set built a track and contained two charging stations that integrated into ...
4
votes
1answer
319 views

How many standard 2x4 LEGO elements are produced in a single 2x4 mold injection?

Just how many standard 2x4 LEGO elements are produced from a single mold injection? I realize the molds are used over and over again, but how many bricks does a 2x4 element mold produce at a time?
4
votes
2answers
5k views

Programming the NXT brick using an ipad app

for the past few years, I have been using netbooks to program the NXT. I would like to move into the 21st century and use ipads. Is there an ipad app for programming the NXT brick?
4
votes
1answer
290 views

Apart from the LEGO brick, is there any other hardware that has an NXT firmware written for it?

I am trying to find out if you can upload LEGO NXT byte-code to any other hardware, so I am just checking to see if anyone has ever written the LEGO firmware for any other hardware. Maybe hardware ...
4
votes
1answer
190 views

Do LDraw files describe models, bricks, or both?

Sorry if this is kind of a dumb question, but do LDraw files describe models (with translation and rotation values with references to bricks contained in other files), or do they describe the bricks ...
4
votes
1answer
219 views

Why does my RCX programmable brick have no power socket?

My RCX has no power socket, I don't know why. it seems that all RCX 1.0 over #300000 have no power adapters. My ONLY link is Google pictures. why?
4
votes
2answers
137 views

How can I reuse LEGO part bags?

I go through so many of these annoying plastic bags. Unfortunately, not many places recycle them. Are there any ways they can be re-sealed?
4
votes
1answer
86 views

Why are there some extra letters on lego Car License Plates?

Most of the car in Lego City have a sticker license plate. The number on a license plate is corresponding to the Lego Set number. But what about these extra letter there? Is it just to add more ...
4
votes
2answers
318 views

Which block manufacturer made this type of person in the 80s

I always thought this was LEGO, and played with it in my LEGOs my whole life (got this in the 80s) but found out recently that it is not LEGO. What brand is it? Who made it? He can hold lego tools, ...
4
votes
1answer
245 views

Giant Legos--that aren't quatros?

We got a big tub of secondhand legos, and included was a random pile of what appear to be giant lego bricks. They are a bit bigger than duplos but smaller than quatro and have an old style lego logo ...
4
votes
2answers
141 views

Gearing down a PF XL

I'm looking for the best way to gear down a Power Function XL. I need to achieve a very slow output RPM (less than 1-2 RPM). I've tried a 625:1 gear (trough 40:8 gear). Can someone link to a well ...
4
votes
1answer
231 views

Does anyone have a picture of the Lego Club alphabet code from Bricks and Pieces magazine?

Somwtime maybe in the early eighties, I read a Bricks and Pieces magazine with a small panel showing the brick alphabet code and it would be great to have a picture of this if someone has it. This ...
4
votes
3answers
201 views

Cheap Lego sets for Kindergarten classroom?

I am wondering what is the best way to get a set of Lego bricks for my kindergarten classroom? The children love playing with them and I no longer own them due to a transfer of grade levels.
4
votes
1answer
74 views

Is there a program to tell me if a specific parts list is available in a given colour?

I want to build some models using the new 1x2 curved slopes which come in limited colours at the moment, the models need to have single solid colours if at all possible. Is there a program or site ...
4
votes
1answer
575 views

can't send multiple commands to EV3 using Python

I want to use Python to send commands to an EV3 brick. In C++ things work as expected - for instance, this starts the motor on port A and then stops it after a while: #include <unistd.h> ...
4
votes
3answers
382 views

Holonomic robots using Mindstorms

I just got some Rotacaster wheels and want to try building a 3 wheeled Mindstorms omnibot (holonomic robot) and I'm looking for a practical (easy) discussion about writing a driving program. I've ...
4
votes
2answers
243 views

Going to Legoland Denmark with my family, what should I do/get?

Hello fellow LEGO lovers! I know this question is not entirely what this site is for but I figured I'd ask because I want to hear what you have to say. I have been wanting to go to the original ...
4
votes
1answer
187 views

Can you identify this model of a yellow truck?

It's part of a series of models I had as a kid that I want to take apart for my own kids now, and I'm looking for the original instructions. Can you identify this one?
4
votes
1answer
494 views

Pre-Technic gears?

I have this set of LEGO gears. I remember seeing them first at my grandparents in the mid 80's. They predate my first Technic sets (~84 or 85). I have fond memories of my dad building a 3-speed ...
4
votes
2answers
3k views

How to install NXT / EV3 software on Windows 8.1 RT

I have a 64 GB Microsoft Surface running Windows 8.1 RT. I am trying to install the old NXT 2.0 software and new EV3 software, but when I try to open the .exe file it says: This app can't run on ...
4
votes
1answer
380 views

Is this piece some kind of rare/modified 200?

I have this piece which vaguely resembles 200, Technic Rack Winder Axle (Rebricked) but one end is different. It is 5 studs long, axle is 1 stud long, the gear lies between 3rd and 4th stud and the ...
4
votes
3answers
264 views

Are all stickers on a sheet used or do you sometimes have spare? Dino HQ set 5887

I built Dino set 5887 recently, but the sticker sheet contains one extra sticker: one of the 'D' things, the pentagram one. One went on one of the walls, the other two round 'D's went on the chopper. ...
4
votes
1answer
546 views

I need help with a broken LEGO motor

I have a LEGO motor and it broke but I didn't know why so I took apart the LEGO motor to see if the wires were the problem. I tested the wires to see if they were working but they weren't and I can't ...
4
votes
1answer
575 views

Why did the dark grey color of bricks change? [duplicate]

Possible Duplicate: What is the bley (blay) color? 15 years ago there were 2 shades of grey - light and dark grey bricks. Some years ago, hue of new produced dark grey bricks shifted ...
4
votes
1answer
66 views

Please help identify Star Wars set - I have some very specific wings

Please see attached pic, I reckon these are part of a Star Wars ship. Can anyone help me identify the set? Many thanks in advance, Michael.
4
votes
3answers
194 views

How can EV3 Gyro sensor drift be handled?

EV3 robots can use a Gyro sensor to determine the direction the robot is heading. The initial conditions are important. The sensor needs to be still and then the sensor reset. However, once in a ...
4
votes
2answers
99 views

Identification please

I got hold of a lot of loose LEGO; included were three closed packages without assembly instructions. Two of these were numbered as 7 and 8 respectively, the third one is without numbering. I attach ...
4
votes
1answer
75 views

Neutralize brick scent

I store some used Lego sets in household plastic boxes originally used for candy. I thought they were ideal, but now I found out the bricks have caught an unpleasant candy scent -- despite cleaning ...
4
votes
1answer
146 views

Is LEGO Junior compatible with regular LEGO?

Does LEGO Junior fit with regular LEGO? Say for 8-12 year olds? I want to make sure it is not obsolete and can be used as the child grows alongside the LEGO collection.
4
votes
1answer
85 views

LEGO Set 10188 Help on Step 160

I have the LEGO Star Wars Death Star set 10188. I am stuck on step 160 because when I try to clip the parts into a circle, parts snap off and I can't seem to bend it down. Thank You.
4
votes
1answer
98 views

Can I share/download a wishlist on Bricklink?

I have a whole set in a wishlist in Bricklink and I would like to share it with some friends. Can I either: Share the list via Bricklink so they can use it directly. Download it in XML so they can ...
4
votes
3answers
313 views

Does someone know where i can find this lego brick?

Where can i find this lego brick? I got one but I want some more of them for a project.
4
votes
1answer
775 views

Is it possible to run more than two remote control trains on one track?

My son has two passenger trains and a lego cargo train. We can get two trains running on the track using one remote. But how do you operate a third train? We do have other remotes which came with ...
4
votes
1answer
185 views

What was the slot for in the 1950's slotted bricks?

Bricklink has a list of ancient bricks from the 50s that have slots in them. What was the purpose of the slot? Its positioning on various pieces suggests that there was something specific you were ...
4
votes
1answer
268 views

How can I wire up the LEGO 2838?

I would like to know how to hook up the LEGO 2838 9v motor. I understand that the Power Functions extension wire is compatible with the 9v system, but how on earth do I wire them up?
4
votes
2answers
158 views

Strain Gauge on Lego Bridge

I had an idea to teach my son (almost 4) about bridges and large structures from an engineering point of view. I thought that it would be cool to build a large bridge and put a strain gauge on it. One ...
4
votes
1answer
128 views

CAD model of the LEGO monorails

I was wondering two things, Is it legal to share CAD models of LEGOs with other people as long as it is not for profit and Does anyone have A CAD model of the LEGO monorail track that was made in the ...

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