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0
votes
1answer
103 views

Why are the Lego boxes so unnecessary big? [duplicate]

I ask myself often when buying Lego why the boxes are so much bigger than the space that is needed for the contained content. It seems a waste in terms of material and logistics. I do store the boxes ...
2
votes
1answer
120 views

What is this part?

I found about a dozen of these in a mixed bunch of LEGO. Are they actual LEGO pieces or another brand? They are actually white, the pink color is a lighting error.
2
votes
0answers
33 views

MindSqualls - can I connect more than one NXT brick using USB?

To access my NXT brick connected via USB with the MindSqualls library, I do the following: var brick = new McNxtBrick(NxtCommLinkType.USB, 0); The 0 is serialPortNr. If I were to buy a second NXT ...
4
votes
1answer
128 views

Lego track switch doesn't close properly

Just two weeks ago, my kid got a 60198 cargo train and we added a set of 60238 switching tracks. With two (out of three) switches we have the problem that the switch doesn't close properly anymore to ...
5
votes
1answer
125 views

Identify this fire truck set?

Can anyone identify this fire truck set? I’d like to find the instructions before it gets taken apart.
2
votes
1answer
40 views

Looking for custom EV3 block to control LEDs independently

The EV3 brick has 2 LED sets, one on the left side of the button panel and one on the right. Software such as python for ev3dev let's you control them both individually, the normal EV3-G LED block ...
6
votes
3answers
247 views

Is there any rhyme or reason to the sizing of LEGO boxes?

Recently, I have noticed that there appears to be no rhyme or reason to the sizing of any given LEGO set box. For example, in the picture below, you can see three sets that have a similar amount of ...
1
vote
0answers
24 views

EV3 Ultrasonic Sensor programm

How can I download the ultrasonic sensor and open it? I want to open it on a laptop running Windows 7. Which program must I download?
0
votes
0answers
38 views

Using switch block with Hitechnic color block

Can I compare the Hitechnic block --> measure --> color output in a switch block? For example, if the Hitechnic color sensor is seeing black, then do something, else do another thing. If not, then how ...
3
votes
2answers
95 views

What is a color sensor and where do you get it?

I have an NXT but I don’t know how to make it detect colors, all it does is say “wait”. My set includes a light sensor but I heard some YouTube videos say there was a lego “color” sensor. Does LEGO ...
8
votes
2answers
310 views

Has this building technique been used in an official set?

One of my favorite building techniques is to place a Technic pin into the anti-studs of a brick. This allows two bricks to attach bottom-to-bottom. It's a pretty secure connection, but I'm not sure ...
5
votes
1answer
150 views

How can I separate 1 x 1 round from boat mast base 4 x 4?

I have two pieces I cannot seem to separate. The parts in question are: 3062b: Brick, Round 1 x 1 Open Stud 6067: Black Boat Mast Section Base 4 x 4 x 1 2/3 The 1 x 1 is transparent in this case, in ...
0
votes
1answer
67 views

can 2 powered up train motor be plugged into one hub

I have set #60198 and it comes with one powered up motor. I'm hauling many many cars and one motor isn't enough any more. I see there is a slot for "B" on the hub. Is it possible to plug in another ...
5
votes
1answer
179 views

Mystery brick - cannot find instructions with this piece mentioned

I have a bunch of LEGO bricks from the years 1975 - 2016. There are a lot of obscure pieces in my collection, but this piece is so obscure that I have no idea what it goes to. If anyone can help it ...
2
votes
0answers
57 views

Rearing off to the left without telling it to

I've started to build a robot, but when it drives it veers off to the left even though I'm just telling it to go straight. I think I need to do something to the motors but I don't know what or how. I'...
7
votes
3answers
112 views

How can I separate an 8H antenna from a modified 1×1 with ring?

I have two parts which are stuck together: 4081b: Plate, modified 1×1 with clip light – thick ring 2569/25699/47094: Antenna whip 8H The parts have been assembled like this for about 20 years and ...
5
votes
1answer
177 views

What does the acronym SPUA stand for?

A while back, I heard someone use the acronym SPUA while referring to a LEGO piece. What does that stand for and what does it mean?
4
votes
1answer
197 views

Is this an early Duplo mini figure?

Just wondering if you have ever seen this figure before? I've had it since I was a kid in the early 80's, and it's always lived with my lego (which was mostly hand-me-downs from my older brother - ie ...
0
votes
0answers
32 views

Are there any coding platforms for my NXT available for my IPad?

Can anyone tell me any app on the App Store so I can program my NXT? Please let it not be one of those ones that you have to pay or one of those that are just controllers. Thanks for your help.
4
votes
1answer
161 views

Has LEGO Made A Minifigure-Scale Shopping Cart Piece?

For the current MOC I am working on, I am going to need a LEGO Minifigure-scale shopping cart. I thought I had seen one in an official set, but after searching Bricklink extensively, I am now not sure ...
1
vote
1answer
77 views

My DUPLO railroad engine stops after 20cm

My DUPLO railroad engine stops after 20cm moving. I suppose the sensor in the front axle is damaged. So is it possible to repair it?
2
votes
2answers
99 views

Seeking HiTechnic Color Sensor V2 control block for EV3-G

I'm looking for the EV3-G control block for the HiTechnic Color Sensor V2, previously distributed by HiTechnic (https://www.hitechnic.com/cgi-bin/commerce.cgi?key=NCO1038&preadd=action), ...
2
votes
1answer
125 views

Can you identify this brick?

There are about 20 of these bricks in the set. Nothing else that stands out as unique. This may be a long shot.
2
votes
1answer
118 views

Can the experts Identify these sets?

Newbie here. If you are sick of these posts, sorry. A friend gave us a bunch of sets with only a few sets of instructions. We were able to figure out a few of them. Not sure what these are.
1
vote
0answers
42 views

Makeblock and LEGO PF cable synthesis

My 10yo son and I have ventured into the realm of taking our LEGO hobby up a notch with robotics. We have built the makeblock mbot and adapted LEGO bricks and want to incorporate the Power Functions ...
0
votes
0answers
40 views

LEGO train 7898 Arduino Library?

So I want to control the green 7898 train with an Arduino, but the library I have installed doesn't support this specific train. My question is if anyone knows a library that does?
2
votes
1answer
28 views

Submodel does not show properly in LPub3D

I am new to digital LEGO models and building instructions with LPub3D. In order to find my way around submodels I have created this very simple dummy ldraw model: 0 FILE new model.ldr 0 Name: new ...
3
votes
1answer
62 views

Anyone have the control block for the hitechnic color sensors?

I'm just wondering if anyone has a copy of the control block for the hitechnic color sensor v2? I'll take a v1 if you have that because I'm desperate at this point. The downloads page for it is down ...
3
votes
3answers
163 views

My LEGO character's helmet keeps falling off… Is there any way to fix?

My figure won't keep its helmet on and if I get it one it is very loose and will spin around.
2
votes
1answer
64 views

How to include submodel into main model in LeoCAD?

In LeoCAD I can create multiple submodels. But how do I merge them or integrate one into the other? The release notes suggest that this is possible, but I can't seem to find out or find resources ...
4
votes
1answer
148 views

Is it possible to build 3 or more concentric circles / nested circles / telescoping pieces?

There are round 2x2 pieces. There are round 4x4 pieces with round 2x2 holes, the 2x2 can slide/rotate inside of it. There are "macaroni" pieces to make an 8x8 circle with a 6x6 hole. But are there no ...
0
votes
1answer
49 views

Bionicle parts for own bionicle figure

I need Bionicle parts to make my own Bionicle. Any good set recommendations? Any LEGO set will do. It does not have to be Bionicle.
0
votes
0answers
25 views

Transforming Lego PF protocool from philohome to Pronto Hex?

I was trying to transform the Lego PF codes, which are shown in this document, to pronto HEX (a kind of IR code format), but I wasn't able to do that. Does anyone have any idea how to transform this ...
4
votes
2answers
131 views

Which part# goes to these LEGO wedge pieces?

I'm trying to identify these two parts, plus the color on the greenish one.
1
vote
5answers
201 views

Do they have every brick type or just the basics at the PaB wall?

I am looking for a specific piece and I don’t know if they will have it. Is it any piece or just basic ones like 2x4’s?
2
votes
0answers
37 views

Improving EV3 Screen Readability

I often have a hard time reading the EV3’s LCD display. I presume that I’m not the only one who has experienced this issue. Is there a way to improve its readability? For example, are there any good ...
2
votes
1answer
102 views

Helmet with flip-down binoculars is not in any of the databases

The helmet has 10198 inside but I cannot find that on any of the usual part databases. Does anyone have any ideas?
5
votes
1answer
140 views

Who are these Figures?

Does anyone recognise the two larger LEGO figures? They are from sets released in the 80’s and I am trying to find out what sets they’re from so I can hopefully build the sets with my son. One is a ...
1
vote
2answers
50 views

Color sensor reliable?

I am experimenting with the light sensor shipped within the mindstorms ev3 package. My Problem is that the bot is standing quiet at one place. Each value returned by sensor is different, although the ...
2
votes
1answer
58 views

Two motors are driven forward, why are they rotating in different directions?

I have the Lego Mindstorms EV3 Pack and built a simple car with 3 wheels. The back whels are motorized. When I run the following code: Motor.A.backward(); Motor.D.Backward(); both motors are ...
0
votes
1answer
80 views

Using two color sensors simultaneously

I am new to the world of robotics, and I'm preparing a new project with my students. Our goal is to make a self driving robot that can read colored signs from the road in order to turn right or left a ...
5
votes
1answer
365 views

Is there a hobbyist standard for Trains track modules?

Many non-LEGO model railroaders have standardized track module standards allowing for interchangeability of (often highly-decorated) track sections (due to availability, damage, scheduling, etc.) as ...
4
votes
2answers
123 views

Best Way To Make This Panel Flush With The Wall?

I would like to use the 8x8 grates on the side of the building (studs out) as window pieces so there is nothing behind them. I'm wondering if there is a better way to have a more stable connection. I'...
6
votes
1answer
163 views

Why do Star Wars sets include the Disney logo/brand name while Marvel Super Heroes sets do not?

I have noticed that LEGO sets from the past few years of their Star Wars theme include a prominent, or at least noticeable, Disney logo, typically in one of the corners. For example, see this Imperial ...
2
votes
1answer
127 views

What’s this piece and is it rare

I don’t know what this piece is and where it’s from
4
votes
1answer
123 views

Help identifying a 1x1 LEGO part with clip on top

The numbers inside this brick are 01 B02. The brick is a 1 x 1 black plate with a white clip inserted into a hole. I have searched Bricklink with no success. I have also searched Google. Hoping ...
1
vote
1answer
87 views

What minifigure has a textured lab coat?

With body on legs it will not fully sit down. From a tote of LEGO parts my kids played with in jr high or high school. They graduated in 2008.
1
vote
2answers
75 views

Is there any easy, documented or official way to replace pullback mechanism with Motor Set 8293

There are many Technic cars with a pullback mechanism, like 42059, 42073 or 42072. Is there any systematic, easy, documented or official way to replace the pullback mechanism with the LEGO Technic ...
0
votes
2answers
66 views

Can't link variable inside a switch when creating a new block

I have a problem when connecting the variable (from the create a block) to a variable in the function because it's inside a switch. How can I link them? I want to connect the variable to each (20) in ...
1
vote
1answer
76 views

black pants (jeans?) with silver/gray pockets and gold dot

Do you recognize these pants? Are they on Bricklink, etc.? (I looked on Bricklink and Rebrickable but couldn't spot a match.)

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