LEGO® Answers Stack Exchange
LEGO® Answers Stack Exchange

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1500 questions
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1 answer

How can I tell which LEGO minifigure I found?

I found a mini-figure on the the ground by a recycling bin. I want to figure out what set/collection he belongs to but can't find anything other than how to tell what you're getting in a blind bag. He's normal size for a mini-fig, not a shorty or…
Scott
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How do I make my logo/mascot into a custom LEGO model?

I operate an Indoor Playground & Cafe and would love to find out how to make my mascot/logo into a 4' custom LEGO sculpture. Any assistance appreciated! A bit of looking indicates that LDD will generate instructions and parts list but I am not…
Stephen
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Gearing down a PF XL

I'm looking for the best way to gear down a Power Function XL. I need to achieve a very slow output RPM (less than 1-2 RPM). I've tried a 625:1 gear (trough 40:8 gear). Can someone link to a well done gearbox like that? Moreover, how I can make an…
Imlach
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1 answer

Convert 3rd party NXT programming language code to NXT-G program?

Is there a way to convert code from one or more 3rd party programming languages used for programming the NXT into a program that can be loaded up in NXT-G? If not, do any text-based languages provide support for making custom blocks that can be…
user124930
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How to build an automatic Lego train system?

I was wondering if anybody has ever tried using the IRLink NXT sensor to make an automated train system and if so, what kind of setup did you have to make it all work? I have been working on a train station for a while now and would like to create…
Stefanos Koutsoukos
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Help to identify a unique minifig head

I have a minifig head that I can't find on the Brickset website or else where. Not sure where it came from but found it amongst a pile of odd bricks my kids had collected years ago. The head is probably from before 2002 (last time any of them…
ken
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Where can I download the software for old RCX-era Mindstorms sets?

These days I've been coming across a lot of people who've purchased used MINDSTORMS sets from the RCX era, only to find they didn't come with a CD. And in order to use the set, assuming that using an alternate programming language is not an option,…
HaydenStudios
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21104 NASA Mars Curiosity Rover?

Has Lego made a public statement why they stopped producing the Curiosity Rover set? Each of its few production runs sold out in hours. Why won't they take my money? More importantly, how do I get a set for my kids (and me)? Speculators sell them in…
Foo Bar
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Is it safe to remove PC (polycarbonate) arms from minfigures?

I would like to replace the clear PC arms on the Chima ice figures with opaque ABS. Would I still be able to use the clear PC arms with other figures after I have removed them? I know that removing and replacing arms makes them slightly weaker and…
Windfire
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Design of record-breaking builds

This is more a theoretical than practical question... If one wanted to build a 40-metre tower out of only Lego using the fewest pieces or cost, what design would be a good one, e.g. types of pieces and overall shape? I've just read that some…
Gnubie
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5 answers

IDE recommendations for EV3 programming

Does anybody have any recommendations for non-GUI programming of the EV3 unit? I'm impressed by the LabVIEW software, but as a professional C# and VB.Net programmer (with C, C++ experience), I find it slow and difficult to implement complex…
freefaller
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Dimensions of Mindstorms NXT pieces

I don't have access to my NXT boxes at the moment (they're stuck behind a wardrobe that won't get moved for a week or so) and I'm working on this project where I need to know the dimensions of the NXT, motors and sensors in mm. I did a search but…
Often Right
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2 answers

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 would if you were buying each of the pieces from a…
Thy'
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What is included in set #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 are not in bags. The set looks to be complete,…
user3690
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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…
Ailurus
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