5
votes
2answers
1k views

Programming Mindstorms on a chromebook

I know there is no official way to program NXT/EV3 on a Chromebook. But a Chromebook can have Ubuntu installed via Crouton in developer mode. So, is there a relatively painless way to program ...
1
vote
1answer
66 views

Not detecting motor port D

We are trying to program in LabVIEW, using all 4 motor ports. On the port selector, port D is not even showing up.
4
votes
2answers
317 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, ...
7
votes
2answers
477 views

How is this brick attached to the pregnant minifig?

While Google-image-searching pregnant minifigs (don't ask) I came across this fig, and other variations on it, but I can't figure out how the 2x2 round brick is attached.
2
votes
2answers
219 views

Question about a Lego Compatible brand

My son has a small orange and grey space ship building set. It has two astronauts with it. The logo on the bricks shows the letters "B L" on them. We're trying to find instructions online so that he ...
3
votes
2answers
2k views

Mindstorms EV3 PC application won't load

Installed Mindstorms EV3 application on MS Windows 7 Home Premium v6.1 (Build 7601: Service Pack 1) and I keep getting the same error message when launching. A white window pops up with the ...
3
votes
1answer
119 views

Opera house 10234 book 2 instruction 20 left hand side and then 22 has got me stumped. Can't figure out how these pieces fit. Please help

Opera house 10234 book 2 instruction 20 left hand side and then instruction 22 has got me stumped. I am not sure whether there is a space between the "high 2 and the blue 4. Please help
1
vote
1answer
579 views

EV3 T Rex problems

I am new to this and I need some help with the moveabsolute block which is described in Chapter 16 of Daniele Benedetelli's book. In figure 16 - 2 he describes the block and here is my problem: I ...
5
votes
2answers
254 views

Two-state clicker button

For no particular good reason, I think it would be interesting to build a Lego button that behaves somewhat like the button on a click pen: as you press it, it alternates between a "down" state and an ...
2
votes
1answer
131 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. ...
4
votes
1answer
243 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 ...
3
votes
1answer
409 views

Light on color sensor is blue

We had the sensor color on red and it was working with our remote. We changed the batteries in the 'brain' and now the light sensor is blue and won't work with the remote. Any suggestions? It's a ...
2
votes
1answer
122 views

What is this notched or angled 1x2?

It looks old. the only markings on it is LEGOS stamped on the top of the stud holes, and a number 2 stamped on the bottom. It looks like a normal 1x2 with a slight triangle taken out of each side. I ...
7
votes
1answer
355 views

Which train motor is more powerful, 9V or 12V?

I recently picked up LEGO bricks again and due to lack of space I'm planning to build a multilevel train layout. I do have a descent amount of 12V track along with trains and switch points, but I was ...
4
votes
3answers
881 views

Representing pregnancy on LEGO minifigs without a dome

So far for pregnancy I have tried a fetal carrier that I put on the minifig's back but this limits her movements. Specifically she can't bend too far in either direction and also she can't lay down ...
3
votes
2answers
224 views

Creating ski gondolas/tramway with Duplos

I've got a three year old who just came home from a ski vacation where he was enamored with the gondolas (like below). I want to make one with Duplos for him. I'm most of the way there, but have a ...
5
votes
1answer
578 views

How to control a 88004 Servo Motor with a Raspberry Pi?

I am able to control a simple servo motor such as SG90 by using pulse-width modulation. However when it comes to controlling a 88004 LEGO Servo Motor it is simply a nightmare. By using PWM all I ...
2
votes
1answer
1k views

How to fit lego power function LED lights onto cargo train (set: 60052)

can anyone out there explain / illustrate how to fit lego power function white LED lights on the blue cargo train (set number 60052)? We have assembled the engine but I cannot see where or how these ...
2
votes
1answer
285 views

What set is the minifig from?

I found this minifig in a box, but do not know what set it came from ... help?
1
vote
1answer
123 views

Which parts can I use to connect a cross axle to a car body?

I have some wheels that are connected to cross axles. The wheels don't turn on the axles (they have an X-shaped centre whole ). Which parts can be used to Connect the axle to the car body? It's ...
2
votes
1answer
129 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?
5
votes
6answers
5k views

Lego remote controlled cargo train not working

I've helped my son put together the Cargo Train set (60052) but now we can't get the remote control to work. It all looks like it's been assembled correctly with new batteries put in, but it doesn't ...
7
votes
2answers
657 views

I cannot seem to figure out which figure this policeman is. Help please?

My son recently got a huge box of figures and pieces (from what I can tell an original spaceship wih figure too) and I can't figure out what set is from or how old this figure is. Any help would be ...
3
votes
1answer
123 views

Is it safe to use a hot glue gun for Mega Bloks?

I've just managed to secure a copy of the Mega Bloks StarCraft Battlecruiser set on eBay after they dropped significantly in value with Blizzard clearing out the last of the stock with their recent ...
2
votes
2answers
260 views

Issues connecting the EV3 on Windows 8.1 64bit

I have got a computer with Windows 8.1 64 bit and I have installed LEGO Mindstorms EV3 software Home edition and tried to connect the EV3 brick to the computer, but the brick didn´t connect to the ...
5
votes
3answers
417 views

Protecting a minifig from wear

I've purchased a few of the Lego keychain minifigs. Each time I've bought a new one was to replace the previous one because it had most or all of the paint rubbed off from going in and out of pockets ...
0
votes
0answers
47 views

Linking two blocks [duplicate]

I am in a contest and would like to use one Mindstorm block to control another. I am new at this. We are in invention section of the contest and trying to develop a pipe laying machine. Basically I ...
3
votes
2answers
194 views

How can I find LEGO bargains on eBay?

Sometimes I have been able to find some good deals on used LEGO sets, however most of the time I spend looking for sets is trial and error. I usually search from Toys & Games > Construction Toys ...
0
votes
1answer
82 views

If I design a lego set [duplicate]

If I design a Lego set that you may be interested in selling, whom do I contact in the company? My husband iis constantly building new buildings etc. Thought your company may be interested.
5
votes
3answers
11k views

Starting a wholesale LEGO business

I would like to start a company trading in bulk LEGO. I have been told, however, that trading in volume is quite difficult and good discounts are only really given to the likes of Walmart and other ...
4
votes
1answer
132 views

Can I Conect 2 NXTs so that they work together?

I am building up a robot and I want to use 2 NXT connected together because I need more than 3 ports A,B,C. So my question here is: When I write the code, is there anything different I have to do? ...
1
vote
1answer
68 views

looking for this duplo (I think) peice [duplicate]

It's a yellow curved piece (like the eye piece) with a red button on top that rings like a bell. My kids had this growing up in the 80's. Any info on what this piece is called or where to get one ...
3
votes
1answer
137 views

Execute program programmatically

I want to program our Ev3 for FLL (class assignment), and I want to use an object oriented approach in a very procedural environment. Is there a programmatic way to execute another program inside the ...
3
votes
2answers
413 views

Cracked LEGO torso [duplicate]

I recently discovered that my LEGO Legolas minifig from LEGO Lord of the Rings has two small cracks starting from the base of the torso on each side, but I wonder: will these cracks extend and damage ...
6
votes
2answers
212 views

City scale connection for five-bladed helicopter rotors

I want to build a Super-Puma helicopter in city minifigure scale and form, I have the basic design planned, but I am not familiar with any five-sided technic connectors, which I will need for the ...
2
votes
1answer
403 views

The program downloaded from the education ev3 programming software has a error “VM program validation”

I cannot run the program from the ev3 software.It only shows "VM program validiation" How do I stop this from happening?
5
votes
3answers
258 views

can someone identify this lego character for me?

I have a mini figure that I can't find on the web or any where else (I also don't have any instructions for it). Not sure where it came from but I found it in a pile of lego at home that I collected ...
2
votes
1answer
203 views

How to connect chain links to the axle

In my project I want append two 21 chain links to the axle 12. Is this any axle connector with knob ending?
3
votes
1answer
136 views

lego or duplo ringing doorbell

Does anyone know if this piece can be found anywhere or what it is called? My kids had a ringing doorbell appox 28 to 30 years ago, where you push down a red button that sits on top of a curved ...
4
votes
2answers
251 views

Is there a LEGO Tyre Shop set?

Is there a LEGO set of a tyre shop (garage)? In other words, a set with play features where tyres could be disassembled by a tyre-changing machine, with a lift for cars or bikes, and other tools for ...
6
votes
2answers
12k views

What is LEGO Junior?

Are LEGO Junior bricks bigger than regular LEGO? I can't decide between Junior LEGO and Duplo for my son who is just over 3. I had thought the Junior sets might constitute a happy medium, but am now ...
2
votes
1answer
135 views

What pieces are used to create this Djembe MOC?

I sent an E-mail to the creator but haven't heard back. Any thoughts on the part numbers on the Lego djembe? Trying to build one for Christmas gift :-)
3
votes
1answer
230 views

Are there LEGO compatible CAD Files For Injection Mold Manufacturing?

I've designed some fun building brick sets that are compatible with LEGO but I know the market for them is smaller than what LEGO would be interested in. I've contacted some manufacturers at ...
3
votes
1answer
1k views

What are the dimensions of LEGO 10221 Super Star Destroyer?

What is the length, width, and height of the 10221 Super Star Destroyer set, fully built, including its stand? I'm trying to make a display case for one.
2
votes
3answers
509 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 ...
1
vote
1answer
154 views

Parts/Step not fitting ( technic / gear not aligning)

working on Lego Technic; Recovery truck. Reached Step 27(book 1)....fixing the rope spool. and found that the white gear wheel is not fitting in. i.e., i have the white gear fixed on the shaft with ...
1
vote
3answers
316 views

Reading current motor speed, opOutput_Read

I'm trying to read current motor speed using direct command: Instruction opOutput_Read (LAYER, NO, *SPEED, *TACHO) Opcode 0xA8 Arguments (Data8) LAYER – Specify chain ...
4
votes
2answers
452 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 ...
1
vote
1answer
163 views

Mega blok vs lego bases [duplicate]

Are mega bloks compatible with the lego bases? Do they sell a larger lego bases for them? I am making a table but want to use the correct base.
6
votes
2answers
533 views

Has Lego discontinued presenting alternate configurations on the backs of modern boxes?

When I was younger, the backs of my Castle/Space Lego set boxes showed alternate model builds for the supplied pieces, configurations not detailed in the instruction manual. I appreciated these ...

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