2
votes
2answers
104 views

Which wheels are suitable for Power Functions M-Motor

I'm attempting to build a small self-propelled LEGO robot. Initially I was attempting to use some cheap DC hobby motors but I spent a lot of time trying to attach LEGO wheels to the motor's 3mm ...
2
votes
3answers
227 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 ...
2
votes
3answers
540 views

Where can I get LEGO bricks to build a life size wall?

I would like to create the structure, meaning walls of my stand in an exhibition, made by LEGO bricks, so I wonder if I can order great quantities of bricks just to create this and if I can talk to an ...
2
votes
1answer
73 views

How to make NXT bricks communicate information?

Is it possible to connect, in some way, two NXT bricks that has program functions running on both. For example, Brick one would tell brick two that it is okay to start a program. Are there any sensors ...
2
votes
1answer
310 views

Where will the World First Lego League be held in 2015?

Every year First Lego League (FLL) is held in 3 different countries. I know that the world festival will be held in St. Louis, but where will the other two be? Last year it was held in Germany and ...
2
votes
1answer
329 views

Where to order custom mini-figs in Europe

General question is are there any custom Lego minifig online stores in Europe like there are many in the US ? In detail: My friends friend is getting married and she would like to surprise them with ...
2
votes
1answer
631 views

NXT or EV3 gyro sensor

Do NXTs or EV3s have gyro sensors or built-in gyro sensors? How can I know the direction of the robot?
2
votes
1answer
312 views

I have a 16x16 stud clear base plate. Where is it from?

I found another grab bag treasure. I ended up with a 16x16 stud clear(ish) base plate. A quick look at bricklink gave me a no items found message. I'd like to know which set(s) this piece can be found ...
2
votes
1answer
371 views

What products, if any, have ever been recalled by Lego?

The question says it all. Have there ever been any recalls of products by Lego? If so, what were they?
2
votes
2answers
193 views

identification of lego set by color and shape of inner box

I'm trying to identify a lego set only knowing the color, shape of in inner package. The inner box is blue, dimensions are 18 x 11 x 2 3/8" and 9T plastic compartments, There is a 1984 Lego Catalog ...
2
votes
1answer
302 views

Pushing lego city train [duplicate]

Are you able to push the lego city train around the tracks without damaging it or do you always have to use the batteries to make it go.
2
votes
3answers
2k views

What is a normal range of reading of the Light Sensor using EV3 Raw Sensor block?

EV3 software does not support the Light Sensor. It does support the Color Sensor. The solution is to use the Raw Sensor Block. What is "normal" for raw sensor block readings? I'm getting readings ...
2
votes
1answer
52 views

Identify 2011 set number

This bag is from a 2011 set. It's 150-250 pieces. It appears to be a car.
2
votes
1answer
52 views

LEGO Friends set identification from sealed bag

I have the unopened bags of a LEGO Friends set, but I can't find any number to identify the set.
2
votes
1answer
36 views

Absolute position regulation NXC

I am trying to position the LEGO NXT motor exactly at a certain absolute angle: PosRegEnable (OUT_A); PosRegSetAngle (OUT_A, 0); Wait (500); // to read sensor value ...
2
votes
4answers
97 views

How can I make Custom Instructions for my MOC?

I'm a huge AFOL and recently have quit my job in order to take my part time job of selling Lego to the next level. However, there's a new venture I'm having difficulty with and I would greatly ...
2
votes
1answer
130 views

What is the name of this 2x2 curved piece with a lip?

What is this piece called, and what are its degrees?
2
votes
2answers
86 views

Help with marks?

I am trying to find out the significance of 3 marks that appear on the back of base plates. There are 3 circles in a row. The first contains numbers 0-9 in increments of one with a small arrow ...
2
votes
2answers
92 views

What set are these bags? Detectives wanted

I just bought this collection of LEGO parts. I am mostly curious about the sealed bags. Most are numbered 2011. Thanks for the input in advance! More detailed pictures: http://imgur.com/a/ebkvz
2
votes
1answer
116 views

Please help me identify these Lego and Bionicle sets numbers

Lost many of the lego parts in a flood. I've put parts together using best guess so some pictures may represent more than one. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. ...
2
votes
1answer
97 views

Where can I buy bulk DUPLO sized bricks?

I am working on a project where I need LOTS of basic DUPLO sized bricks and/or plates. I need only the simple sizes, 2x2 and 2x4 and possibly 2x6. I do not want any pieces with curves, slopes, decals, ...
2
votes
1answer
236 views

Where does these knock-off LEGO's come from?

These are some of the non-LEGO pieces I had in my LEGO collection when I was a child, and I was told they were old LEGOs, but any site on the history of LEGO completely fail to show anything like this,...
2
votes
2answers
142 views

Age recommendations explained? [duplicate]

Can you explain the rationale behind age recommendations for various Lego products? For example, what makes a 4-7 rating different from a 6-8? Is it unreasonable to buy a set labelled 12+ for my very ...
2
votes
1answer
190 views

Differences between EV3 Gyro and Hitechnic Gyro

I understand that the Hitechnic Gyro was made for NXT but are there any advantages of using it over the normal lego gyro in EV3??
2
votes
1answer
56 views

I need an NXT motor adapter

I'm trying to get an NXT motor adapter to this that I'm getting: If you don't recognize this, the parameters said : 80mm 2000 ±10% RPM 28.89 CFM Rifle 20.9 dBA Please tell me what this is ...
2
votes
1answer
152 views

need help identifying which set these 3 bags are from

I ended up with three lego bags but need help identifying them. mostly light grey and dark grey with some blue and burgundy. The bags say 2011 lego on recycle symbol. There are two clear half spheres ...
2
votes
1answer
191 views

Can you use a beveled gear as a pinion?

I would like to use the PF servo motor for steering, however it is very large - I was playing with the idea of having it mounted vertically, and then using bevel gears to change the direction of the ...
2
votes
2answers
405 views

How to design ackermann steering with lego wheel bearing front?

I wanted to use a steering system based on the 11949 part: But I am not sure how to use it in an ackermann system - I would like to be able to have drive and suspension on the wheel, and this piece ...
2
votes
1answer
383 views

EV3 turning in circles

New programmer feeling my way around. I set the most simple "steering block" to 25, the power to 50, and the number of motor rotations to 40 or 50. Then I let it run expecting the bot to go in a ...
2
votes
1answer
130 views

How do I make use of the full SD-card after installing ev3dev

After writing the image to the 8G microSD-card, initial setup of network and installation of git (with apt-get) I could not install anything else since I was out of diskspace. This confused me. But df ...
2
votes
1answer
101 views

Absolute Turning Motor in NXC

How can I turn my motor to 123 degrees, not for 123 degrees? I tried the PosRegSetAngle("output", "angle") command and didn't work. Documentation for PosRegSetAngle
2
votes
1answer
121 views

Can I identify the colour of objects 5mm in diamater with an EV3 Colour sensor?

My plan was to make a simple robot to sort beads like this:. Its the Hama Medium size beads, they have a diameter of 5mm so they are fairly small. After some testing, reading and asking here I figured ...
2
votes
1answer
278 views

Identifying Lego set from 1980's

Can someone please help me identify this Lego set from the 1980's? I remember building a house, work shed/garage and some type of vehicle. The base plate is light gray. It came with 2 minifigures, ...
2
votes
1answer
123 views

What is the quickest way to weed out compatible bricks from loose LEGO?

When I buy LEGO in bulk, I often find that there are at least a few clone brand bricks mixed in with them. What is the quickest way to weed out these non-LEGO parts?
2
votes
1answer
544 views

Programming The Lego Mindstorms T-Rex from EV3 Laboratory

I bought the book The Lego Mindstorms EV3 Laboratory fron Daniele Benedettelli. I buid the T-Rex chapter 15 and when I tried to programming the T-Rex (chapter 16) I have a problem. I'm not able to ...
2
votes
1answer
126 views

Some LEGO elements not attaching as usual

I am building a tank made of purely normal LEGO elements, which means no gears or axles or that type of stuff. I am trying to attach a 6x6 LEGO plate onto the base for support, but it is not working....
2
votes
1answer
146 views

Chamber of Secrets set 4730 assembly issues

We recently obtained a secondhand set with no instructions that I identified to be "The Chamber of Secrets™ 4730". So we downloaded the Building instructions from Lego's website and started to build. ...
2
votes
1answer
139 views

70728/2 Ninjago piece too short?

My son is putting together the 70728 set and the grey tall pieces in book two at step 8 seem to be too short, they leave a gap. By about a mm. Has anyone else had this experience?
2
votes
1answer
132 views

Looking for information on a Lego manual I had as a kid

I had a lot of Lego when I was younger (late 80s/90s), and in a flash of nostalgia I recently remembered having a great instructions/ideas book which I loved to ready through - I can't remember the ...
2
votes
2answers
135 views

Is there a LEGO clamping tool?

Sometimes we cannot easily attach 2 LEGO pieces. Is there a tool to help clamp together LEGO pieces that aren't very tight? In other words, is there a tool for making a more secure connection between ...
2
votes
1answer
224 views

Why is there no set with much RC Straight tracks?

after visiting many Lego events (brickmania, antwerpen, BE), I wish to expend my train layout much more than adding a box or two of 7499 ... Why does Lego didn't released a set with, for example 24 ...
2
votes
1answer
185 views

Can additional MyBlock icons be added to the EV3 palette of icons available in the MyBlock builder?

I'm a big believer in using MyBlocks when using EV3. For FLL teams, every robot needs to move forward, backward, turn right, turn left, arm up, arm down. Even before a robot is built, those MyBlocks ...
2
votes
1answer
1k views

Is it possible to connect EV3 and NXT bricks like master/slave configuration via bluetooth?

Can I make a Bluetooth connection between LEGO EV3 bricks and LEGO NXT bricks? and If it is possible how to handle the software to make a chain between them?
2
votes
1answer
554 views

Any substitute / schematic for Mindstorms 2.0 IR tower?

I came across a used Robotics Invention System 2.0 set, but in addition to a few missing bricks, it is missing the IR tower. Is there any generic replacement that I can use to program the RCX or does ...
2
votes
1answer
4k views

Code for PID for EV3-g

I want to use PID for my Ev3. I used PID for NXT-G before, but I have never used EV3-G before and don't know how to get PID. Could someone please post a screen shot of the code or upload the file?
2
votes
1answer
260 views

How to use printed bricks from set 850425 into LDD?

I would like to know if it is possible to use the printed tiles (those with letters) from the 850425 set into the Lego Digital Designer (LDD)? And if it is possible, the next question is "how" of ...
2
votes
1answer
1k views

RGB sensor HOWTO use?

I've got an RGB sensor (this one with the three LED thingies) and wonder how to access it using NXC. I know I can SetSensorColorFull(IN_1); and then access it using ReadSensorColorEx or, for ...
2
votes
1answer
151 views

Trouble finding plastic storage bins for MOCs built on 48x48 stud (gray) baseplates - Ideas?

I have a number of models built on gray baseplates that are that are proving to be difficult to store/transport. Lidded plastic bins would be ideal, but I'm having a lot of trouble finding bins with ...
2
votes
1answer
345 views

What is the input to the Speed Regulator?

I wanted to buy a transformer for the speed regulator, so based on this image, I bought a transformer with 12V DC output. It works. However, discussing this with a fellow AFOL, he pointed out that ...
2
votes
3answers
9k views

How do I unlock the sunday surprise on the 2013 Star Wars Advent Calendar?

I'm trying to enter the code on the back of door number 1 into the Lego Star Wars site but it doesn't work. Does anyone know how / where to input the code?

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