3
votes
2answers
345 views

Minifigures creator?

Does a website to create custom minifigs exist? For exemple, you choose your head (between all official LEGO releases), torso, legs, and hair, and then you can purchase it for the same price as you ...
3
votes
1answer
79 views

Where can I purchase replacement stickers for a current set? [duplicate]

My stickers for set 60035 are damaged and need to be replaced. Where can I obtain replacements?
6
votes
1answer
159 views

What exactly is this Lego train motor?

I bought this in the early 90s as a spare, since the type of Lego train was being phased out. Presumably the old 12V system. The original train was given away but I still have this. I want to sell ...
2
votes
2answers
163 views

Pick A Brick delivery times

I am about to order some bricks using the online Pick A Brick service. Unfortunately, its delivery time information is confusing. In the right column of the checkout page, it says: Your item will ...
2
votes
1answer
213 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
1answer
193 views

Duplo Activity table to Lego System Table

We purchased a table with Duplo baseplates on top (activity table) for my son when he was 1 year old. He's now turning six and we would like to convert the Duplo top to the regular LEGO System top. is ...
2
votes
1answer
177 views

Export Lego Mindstorms Code

I was wondering if it was possible in any way to see the actual code that is generated by the Lego Mindstorms IDE. I know there isn't a direct 'export to code' option within the tool but I wondered ...
3
votes
1answer
224 views

Is there a microphone that works with Mindstorms EV3?

I'm planning to program my EV3 robot to do voice chat over VOIP using ev3dev and a Debian program. Is this possible? Are there microphones known to work with EV3, and has anyone had experience using ...
10
votes
3answers
382 views

How to unplug black friction pin connectors

Black friction pin without slots connectors are common in older Technic sets. Note that these were quickly replaced by the current version with slots that is much easier to remove. vs Especially ...
2
votes
1answer
217 views

What is this cylinder like part?

I found a pair of these among some parts I bought. It looks like some sort of cylinder, which could hold an axle for a piston. Is that correct, and how would I use it then?
3
votes
1answer
246 views

What is this weird and specific technical part?

I found this part among some parts I bought. It looks like it serves a specific purpose. What is it?
-1
votes
1answer
119 views

What can I do with this steering wheel?

I found this steering wheel + "dashboard" combination among some parts I bought. What is it, in what kind of models is it used, and can I do anything else with the "dashboard" (for lack of a better ...
4
votes
1answer
101 views

In LEGO mindstorms NXT programming: is it possible to download a file from a robot onto the computer?

I've lost the file for a project, but the robot still has it, and I'm wondering if it is possible to transfer the file onto my computer from the robot, and continue to work on it. How would you do ...
1
vote
2answers
160 views

How to install NXT Firmware 1.28?

Lego is giving 1.31 from their website but I need 1.28, how can I install it?
7
votes
2answers
234 views

What elements do I need to create a smooth multi cheese slope ramp?

I love cheese slopes, but I am having issues when I try to produce a smooth gradient using several in succession. I end up with a gentle saw tooth effect at each junction. What combination of elements ...
6
votes
1answer
197 views

How to restore minifig faces

Vintage minifig heads (from the 80s, 90s with the classic smiley) often lose their eyes and mouths after years of play. The paint wears off. How do you best restore the heads?
0
votes
2answers
82 views

LEGO Mindstorms NXT projects

I have a LEGO Mindstorms NXT set and since I bought it I almost never used it. Sometimes I think I could do something interesting with it, but I usually either feel like just copying a previous made ...
2
votes
3answers
312 views

Authentic or Not?

I browse periodically on eBay and see a lot of superhero lego minfigs. Are these real or Chinese knockoffs? It says that they're from China. I just search "lego minifigures". ...
6
votes
1answer
232 views

What element is this a piece of, and how can I repair it?

Yesterday, as I was putting away some Lego, I saw the following obviously broken piece. I couldn't figure out what element this was a piece of, so I was all ready to ask it here, when I came ...
2
votes
1answer
219 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?
4
votes
1answer
132 views

Can anyone explain the transformation information within a Lego Digital Designer LXF file?

I've been taking a look at the structure of the LDD files recently to see if it's feasible to create a plugin for 3D studio max that allows you to directly open LXF files for higher quality ...
4
votes
1answer
245 views

Why are official LEGO PDF instruction books such poor quality?

More often than not, my boys are working from PDF instructions downloaded at the LEGO site. The quality of those PDFs is poor. I'm sure you've experienced the jagged, pixelated lines and the bricks so ...
2
votes
1answer
117 views

Scan objects while moving?

I'm using leJOS with an NXT robot. I want to scan the distances of objects from my robot. While rotating the Ultrasonic sensor from right to left, I would like to find out which object is closest to ...
3
votes
1answer
122 views

Mindstorms, black orphaned data wires

I've just copied a loop element, which had a data wire going into it. The internal wires (from the old external data wire) are now black, and I cannot delete them, or re-link them to a new external ...
4
votes
3answers
127 views

What's a good age to start getting into Mindstorms with my child?

What is a good age to start getting a child into LEGO Mindstorms? Also, how would you recommend introducing her? I can't wait to start building robots with my daughter. She loves LEGO and the idea of ...
2
votes
2answers
283 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
1answer
98 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?
0
votes
3answers
199 views

Will they ever make LEGO The Amazing Spider-man 2 sets?

I realized that they released an exclusive minifigure of The Amazing Spider-Man 2 in the San Diego Comic Con but I am still wondering if they will ever make LEGO set(s) based on the movie.
1
vote
3answers
309 views

My Blocks with return parameter

I have the retail EV3 kit and have created a function with in and out numeric parameters. While using the [in] params seem quite straight forward, it seems that I can only set the [out] param once. ...
5
votes
3answers
202 views

Which Lego Police set or sets do I have?

We were given a big bag of Lego pieces. When sorting through them my son found a bunch of police pieces but we can't figure out which set or sets they belong to. I've tried looking up a few ...
2
votes
2answers
368 views

What is the best way to make a staircase?

I have built a Bat Cave from some bookcases and lego base plates. ( http://alice-yarns.co.uk/blog/2013/11/17/the-batcave-part-i/ ) I want to add staircases for the characters to move between each of ...
4
votes
3answers
164 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 ...
1
vote
0answers
44 views

How is a LEGO Friends Mini-doll built? [duplicate]

Has anyone taken apart a LEGO Friends mini-doll to see how the arms and legs connect? And are the connection points compatible with any other types of brick?
0
votes
2answers
303 views

How can you remove a minifig from its key chain?

My sister has a LEGO minifigure attached to a key chain, but she wants to remove it from the key chain, how can she do this?
5
votes
1answer
210 views

How can the “Bar Holder with Clip” part be used?

I'm wondering whether the "bar holder" end of this element (http://www.bricklink.com/catalogItem.asp?P=11090) can be used as a stud. In other words, would it have enough clutch power to hold e.g. a ...
2
votes
1answer
116 views

What are the bricks in this picture/video?

Can someone please identify the pieces in this picture? I'd like to acquire these, but I'm not a LEGO enthusiast, so I don't really have an idea where to start. For reference, the picture was ...
7
votes
1answer
512 views

Can I re-use my LEGO Store Pick a Brick cup?

I was wondering if anyone went into a LEGO store with their old Pick a Brick cup and got a discount for re-using it, or do you have to buy a new cup?
3
votes
2answers
132 views

Simple optical switch?

I have built a conveyor belt for my son out of Lego Technic. Now, I would like to add a simple optical switch (so that the belt stops when an object arrives at the end of the belt..), and I am not ...
3
votes
1answer
176 views

what is included lego 7155

I found an open box lego 7155 at a local Goodwill. The funny thing is that there are 3 unopened bags in the box, 3 booklets (instructions, and 2 other small booklets along with 4 large pieces that ...
0
votes
1answer
114 views

How quickly do new molds reach PAB on the Lego website?

A few months ago, I asked Lego customer service if the 1x2 jumper plates on the Lego PAB site would be the new mould (with stud holders) or the old mould (with pegs). I received no reply, not even to ...
4
votes
1answer
111 views

Name of trunk-like objects

What's the name of the black curved elements in the header/banner of https://www.flickr.com/groups/lego_arboretum/? The full picture along with some others of the same diorama can be seen here: ...
2
votes
2answers
204 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 ...
1
vote
1answer
39 views

Is it possible to add block to the on-brick “NXT Program” menu?

I have an NXT 2.0 (8547) set. Is it possible to add some custom blocks to the NXT progranm submenu on the brick itself (like the existing "forward 5", "turn left", ...) so that I can add and use some ...
2
votes
1answer
262 views

Virtual LEGO / Technics / Mindstorms simulation environments

I know that there are quite a few LEGO CADs floating around, but are there any physically correct simulation environments for models built with LEGO / Technic / Mindstorms parts, that would, for ...
1
vote
1answer
154 views

What do factory markings on the inside of DUPLO pieces mean? [duplicate]

In addition to LEGO and DUPLO names embossed inside the pieces of early DUPLO figures, there are a variety of number formats (one to three digits, some hyphenated) and in the case of 1977, the year. ...
2
votes
1answer
269 views

Robot that builds a copy of itself

I'd like to try building a robot that can build a copy of itself. Basically, I guess that involves: having some means of navigating around (i.e. wheels, tracks, something to move on) having some ...
3
votes
1answer
143 views

Best online community for Lego Builders?

It seems like different people use different online communities to share Lego-related things, but is there one that's just the best? I suppose I am asking a subjective question, but what I'm looking ...
3
votes
2answers
150 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 ...
3
votes
1answer
82 views

Installing Linux on my NXT

I have an old NXT laying around and I want to set it up with my printer so I can connect it to the cloud. In order to do this I need to install Linux on the NXT and connect the NXT's USB port to the ...
3
votes
1answer
115 views

Finding certain positions in a room?

I have LEGO NXT and a square room of 100x100cm. I would like to use the center of the of the room always as my starting point(the black box). The green box is going to be my park area. Circles can be ...

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