4
votes
1answer
108 views

What prevents a 12V motor, when pushed by hand, from providing DC electric out?

This question is somewhat related to a similar question I asked about whether pushing a 12V train motor (such as the one below) would damage it. See title "Set 7865: six wheeled Lego® train motor ...
4
votes
1answer
143 views

What is this 2x4 brick with a clear bottom, a small hole at each end and a 6 brick high pole?

It is a 2x4 with a clear bottom a small hole at each end and it is smooth on top with a 6 high pole coming out. The brick has no numbers on it so I'm not sure what it is I have tried searching ...
4
votes
1answer
399 views

What are the differences between NiMH and Alkaline batteries for the EV3?

Currently I am using six rechargeable batteries for my Lego Mindstorms EV3. A few seconds after I start a motor the EV3 gives a notification that that the battery is low. I know that good batteries ...
4
votes
2answers
521 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 ...
4
votes
1answer
242 views

Software to help inventory set

Are there any software applications to help check the inventory of a lego set? Currently I load the set-up as a bricklink wanted list and then delete each part one by one until I have only the ...
4
votes
1answer
254 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
305 views

Pneumatic set pistons getting sticky

My sons "9641 Pneumatics Add on Set" now suffers from stiction. How can this be fixed? Can it be cleaned? Is there a recommended lubricant?
4
votes
2answers
770 views

Return a robot to its start position?

I have a LEGO NXT robot, and after some movements I would like it to return back where it started. After some research, it looks like my best option is to revert the motors. To decode their movements ...
4
votes
2answers
356 views

How can I contact LEGO set designers?

I would like to contact some of the set designers of the LEGO group to take part in a professional design forum, but I can't find any contact information. Is there a way I can contact them, or find ...
4
votes
1answer
479 views

How can I order an Ev3 gyro in Europe

I just bought the Ev3 kit, knowing that the gyro sensor is not included. I obviously want a gyro sensor, perhaps also the ultrasonic sensor. Is there any official channel to order them in Europe? All ...
4
votes
3answers
1k views

Where can I get RCX 1.0 software?

We've got a LEGO RCX 1.0 without any Software. I've installed the USB IR Tower, what should I do now? I've downloaded the EV3 Software from the LEGO homepage and thought I could use this, but I don't ...
4
votes
2answers
391 views

What are the armless minifigures from the LEGO boardgames called?

I see many of the LEGO boardgames come with mini figures which are armless and have no holes for arms. While I think it is kind of ridiculous to not simply provide a full figure, I understand it's ...
4
votes
1answer
6k views

Where can I buy older sets, such as the 10187 VW Beetle?

A few years ago LEGO issued a wonderful set of a classic 1960 Volkswagen Beetle, for an selling price of $120. A few years have past and I can't find it anywhere except on eBay where it is sold for ...
4
votes
0answers
66 views

Can you keep blocks clutched together in big chunks? Will blocks loose their “clutch power” after years of that kind of keeping? [duplicate]

I keep my blocks of same type in big assembled chunks, for easy building and finding bricks, but I am worried, is it safe for them or will they tend to lose strength in some time (years maybe)?
4
votes
1answer
565 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
196 views

Is LEGO testing the market with the Minifigure Series?

I looks to me that LEGO is testing the market by using the Minifigure Series. It seems logical to try all kind of different themes and see which ones are gaining traction. For example: Minifigure ...
4
votes
1answer
295 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 ...
3
votes
1answer
102 views

Please help me identify set, thanks!

Got a bag with a lot of pink bricks. I think it is one of the lego friends set but don't know which set. Anybody can help me identify? really appreciated. Thanks]1
3
votes
2answers
199 views

What is the difference between these two Technic half bushings?

While randomly browsing some LEGO sites, I came across a weird (to me anyway) looking bushing. Its part 4265c. Below is one of the images describing it and the left one I recognize, but the right one ...
3
votes
1answer
113 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 ...
3
votes
2answers
146 views

What logos appear on Duplo brick studs?

Do all regular Duplo bricks have the word "Duplo" written on their studs? If not, what variations are there?
3
votes
2answers
322 views

How to turn the NXT at an angle with NXC

How can I program, with NXC, a Lego NXT to turn a specific angle? I've tried using wait() but the problem isn't solved. Can I use RotateMotor()? What parameters should I use? For example if I want ...
3
votes
1answer
294 views

How does cleaning yellowed Lego bricks affect their clutch power?

Will cleaning yellowed bricks (via the retr0brite solution) decrease the clutch power of lego bricks? I've also heard that certain colors of embellishments on the minifigs or bricks do not hold up ...
3
votes
3answers
2k views

NXT Brick will not update firmware

I'm running 6 NXT robots in an introductory class. Occasionally we've had bricks that would not accept a program and I've reset the brick by pushing the reset button under the battery pack as well as ...
3
votes
3answers
3k views

EV3 Education Edition software license

I got a new EV3 education kit. Can I install it on a several computers or does the license work on one computer only?
3
votes
1answer
586 views

What is the history of the Marvel license between LEGO and Mega Bloks?

I just recently learned that LEGO had the license to do Marvel themed blocks back in 2003. When the Iron Man films came out, Mega Bloks produced several Marvel-themed sets. Now LEGO apparently has ...
3
votes
2answers
303 views

Where are the cloth / fabric minifigure capes / cloaks in my set?

I purchased The Mines of Moria (Lego Lord of the Rings item 9473) directly from The Big Store in Legoland, Florida. When I opened it up at home, the capes / cloaks for Pippin and Boromir were ...
2
votes
1answer
82 views

BPA in older Lego

I have some older DUPLO sets. I am concerned about the BPA that might be in them. Do any current sets of DUPLO or LEGO contain BPA? Did they in earlier sets?
2
votes
3answers
106 views

What is the easiest option to start making instructions?

I'd like to make instructions for my kids, which they could read either on paper or on a tablet. What is the easiest option to achieve that, ideally using open-source software (and running on Linux)? ...
2
votes
1answer
510 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
2answers
135 views

Where can I find LDraw files to download for basic figures?

I would like to have a collection of simple examples for my youngsters. Only for basic LEGO bricks. Not Technics or complex and complete space stations, just some step-by-step instructions for the ...
2
votes
1answer
174 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
3answers
1k views

Are NXT Light sensors compatible with EV3?

I would like to use the NXT light sensors my EV3 brick. I don't have enough light sensors as I need 2 for each robot (per set) and it only comes with one. However, I have a lot of NXT sensors. Will ...
2
votes
2answers
561 views

How do 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.
2
votes
2answers
447 views

Logging and performing mathmatical calc. during run?

Is it possible using the new EV3 to log data, and peform mathmatical calculation on the data while it's being logged, and peform some and thereby trigger some event if some value has been reached?? ...
2
votes
2answers
191 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
226 views

Why do some sets have two different numbers? [duplicate]

Possible Duplicate: Why did Lego use the same number for two different sets? For example, 324 Ricky Racoon on his Scooter and 3605 Ricky Racoon and his Scooter appear to be identical in ...
1
vote
6answers
249 views

Most inseparable combinations?

Some piece combinations are really hard to get apart. Really hard. Can some answerers provide a list of "danger combos"? For example, a 2x2 with a round 2x2 on bottom. Also, if possible, provide a ...
1
vote
2answers
84 views

draw program for Lego MOC models?

I want to design a MOC digitally I can do this with ldraw but, are there any drawing programs better than ldraw to make models of lego ? kind regards, Peter
1
vote
1answer
57 views

How do I add the lms2012 library as a dependency within Visual Studio

I'm following this question and am curious how I go about actually importing the following the necessary dependencies. I see this line: #include "ev3sources/lms2012/c_com/source/c_com.h" and have ...
1
vote
2answers
322 views

I need information on LEGO part #3001 in Milky White with Sparkles

Have a 3001 part i have come across with a color i've never seen before. It seems to be a milky white but with glitter in it. New style logo with pip on short side. Any ideas to where it came from?
1
vote
1answer
86 views

How can I make product suggestions to TLG?

I'm sure lots of is have had ideas for products, parts, sets, themes or services that we'd like LEGO to produce. What are the best ways of proposing them to TLG, and of persuading them to take on our ...
0
votes
1answer
640 views

What are the instructions for Lego bag 135149?

Can someone please help me find the instructions for Lego bag 135149? The bag says 2011 and has a propeller-type brick and a white helmet? Any clues what this is?
0
votes
1answer
3k views

Is there an official LEGO brick color reference? [duplicate]

Possible Duplicate: How many different colours of lego brick are there? Is there a canonical reference for the different colors of LEGO bricks? Ideally this would be a color-matching ...

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