20
votes
8answers
14k views

Is it safe to wash LEGO pieces in the dishwasher?

I've heard from a lot of people that LEGO can be washed in the dishwasher, but I'm concerned about warping, losing stickers, wearing off of painted pieces, etc. Is it safe to actually wash them in the ...
20
votes
5answers
2k views

How can I build an (automatic) Mindstorms charging-station?

I'm thinking about buying LEGO Mindstorms and start programming robots. I'm a software engineer and LEGO fan since I was a child so this sounds like the perfect combination of my dearest hobbies. But ...
20
votes
2answers
556 views

What is “micro-scale” building?

I have seen references to "micro-scale" building in LEGO documentation. How is this different than the "normal" LEGO building scale?
20
votes
3answers
5k views

What is the difference between the NXT and the RCX?

What is the difference between the NXT and the RCX? I know that the NXT is newer, but what features does it have that the RCX doesn't have, and vice versa (if the RCX has features that the NXT ...
20
votes
4answers
40k views

What is different between the EV3 Home and Educational sets?

The newly announced LEGO Mindstorms EV3 sets for home and education have some differences, but it isn't clear to me what they are, specifically. It seems that have different sensors, perhaps ...
20
votes
2answers
4k views

How does one get a job as a LEGO designer?

I always fantasized on the mysterious (and admittedly cool) job of LEGO designer. Is there anyone who knows what it takes? Do you need to go to the Lego university and get good grades? Is there any ...
20
votes
1answer
2k views

Are transparent neon Lego bricks made from a different plastic than usual?

There are several colors of transparent, fluorescent Lego bricks. In particular, "trans neon yellow" and "trans neon orange", introduced in the early 1990s, exist in a variety of specialized shapes ...
20
votes
3answers
5k views

How can I build a functional gearbox?

I'm looking for a fully functional (manual) transmission / gearbox for my Technics motorized vehicle. How can I build this?
19
votes
5answers
2k views

Useful machines built with LEGO

I am looking for examples of useful machines built with LEGO (probably Technics, NXT etc.). There are many fun project examples and proofs of concept, such as a Rubik cube solver and a Turing machine. ...
19
votes
4answers
12k views

How many different colours of LEGO bricks are there?

Excluding translucent pieces, how many colours of official LEGO bricks are there?
19
votes
7answers
27k views

Is there a reliable way to determine what minifigure is in a LEGO Minifigures series package?

I would love to have one of each minifigure from the various LEGO Minifigure series. Unfortunately, as you receive a random minifigure in each package, this is more difficult than it should be. I ...
19
votes
2answers
14k views

What does the acronym MOC stand for?

This is a common acronym used in the Lego community - what does MOC mean?
19
votes
3answers
22k views

How do I print images onto minifig body parts?

I have seen a few custom minifigures out there with images on certain body parts never produced by LEGO. What is the best way to achieve this? I have heard of some people printing out the image on ...
19
votes
5answers
1k views

Technic axle corrosion? What happened here?

I got my LEGO from storage from when I was a kid (1980s) and while almost all bricks are in good condition, the Technic axles are in a pretty bad shape. They seem to have corroded(?). Please see the ...
19
votes
3answers
6k views

How do you store your built models for long-term display?

My wife and I recently started to re-enjoy Lego and had a lot of fun building the Grand Emporium and a few other pieces but now they're collecting dust and we're lucky enough to have a few spare rooms ...
19
votes
3answers
50k views

In what ways are LEGO and Megabloks incompatible?

I know that the basic bricks of LEGO and Megabloks fit together, but was wondering if other elements do too. Such as: Plates Rods (Ones Minifigures can hold, not Technic) Right angle (such as ...
19
votes
1answer
1k views

Why are old LEGO bricks more brittle than new ones?

My vintage LEGO sets (circa 1980) are difficult to unbuild. Some pieces are prone to break. Did the plastic recipe change with time or are the bricks simply degrading?
19
votes
1answer
304 views

Do tools exist to help me translate a real world object to a LEGO design?

It can be a big challenge to create a design for a large object. Are there techniques or tools to simplify this, and to help estimate numbers of blocks required?
18
votes
3answers
717 views

What piece is this ARC-170 Starfighter cockpit?

I got these with the ARC-170 LEGO Starfighter: I'd like to get more if possible. They are a part of the cockpit.
18
votes
14answers
4k views

What pieces are prone to breaking?

I've had a few pieces break over the years, which was a real bummer as I was not expecting them to. What are some commonly used pieces that are prone to breaking? Pieces that should be handled ...
18
votes
4answers
4k views

When did Lego decide that it was okay to put a stud into a technic hole?

At one point, Lego didn't really support putting a stud into a Technic hole, stating that it caused too much stress on the bricks. And for a while, there were no sets where that's the case. However, ...
18
votes
2answers
7k views

How much heat can LEGO bricks withstand?

I was thinking on making a decorative LEGO candle holder. It would be made out of regular ABS LEGO bricks, but also transparent ones. Because there will be an open flame involved, I want to make sure ...
18
votes
3answers
748 views

What are the female parts called?

What is the proper term for the "female" section of the piece that the "studs" insert into? I have heard "pipes", "tubes", "underbits". Is there an actual term for the female section?
18
votes
4answers
7k views

How to calibrate NXT motors to travel the same distance?

The motors included with the NXT are not all created equal - when given the same input power level, they do not always go the same distance or turn at the same rate. I measured this by creating a ...
18
votes
1answer
661 views

Is there a convention for part and/or set numbers?

Is there any rhyme or reason to the way LEGO part are named? Failing that, is there any other sort of taxonomy that we can use to find specific parts? Along the same lines, my impression is that ...
18
votes
2answers
5k views

How to minimise or remove sun-stains/fading from blocks?

In particular, I've had white blocks that have yellowed in places. Can the colour consistency be restored? Or at least improved? I'd be more interested in people's actual experiences rather than ...
18
votes
2answers
1k views

Why are LEGO slope bricks textured?

Why is the slope part of bricks textured instead of the usual flat & glossy edge? Are there any non-textured forms of these bricks?
18
votes
1answer
4k views

How can I determine the name of a brick?

Over the vast years of collecting bricks of various sizes and sets, I find that during my free builds I run low on a specific type. How can I go about identifying what the brick is named and what ...
18
votes
3answers
33k views

Where are LEGO parts made?

Are all LEGO parts made in a single factory, or are there multiple factories? Where abouts is it/are they? If there are several, are there different factories for different pieces/sets, or do all ...
18
votes
1answer
1k views

What is LEGO Cuusoo?

Can anyone explain the origins of LEGO Cuusoo project? There isn't a lot of information on the site. It seems to have started in Japan as a way of suggesting ideas for sets but is officially ...
18
votes
1answer
14k views

How are LEGO bricks categorized?

What are the names and categories of LEGO bricks? Is there a consistent naming scheme? Does Lego have an official name or identification for different pieces?
18
votes
1answer
3k views

Why does LEGO state the number of parts on US boxes, but not in Europe?

I was reading Huw Millington's review of set 70700 Space Swarmer on brickset, in which he states: The box is almost square and this being from the USA, like all US boxes but unlike European ones, ...
17
votes
3answers
1k views

What causes these 'bite marks' that appear consistently on new bricks?

I purchased a set (second hand) which has the following defects on the 75°-sloped, inverted 2x1x3 blocks: I assumed they were teeth-marks and asked the seller for replacements, and he found and ...
17
votes
5answers
2k views

How can I motorize City-scale wheels?

I'd like to build city-scale (6 studs wide) vehicles motorized with either PF motor or clockwork. The primary problem right now is connecting wheel(s) to motor. Are there small enough LEGO wheels with ...
17
votes
5answers
1k views

Can an axle be removed from this 'brick paradox'?

This blogpost on Technic Bricks briefly explains a few 'brick paradoxes' or dead ends. This particular model seems impossible to disassemble by hand: How can I remove the axle without ...
17
votes
4answers
7k views

How to get started with Mindstorms?

I want to introduce my 8 year old son to Lego Mindstorms. Where should I start? Is there a starter kit which is the best starting point?
17
votes
4answers
5k views

Are all the Magnet minifigs now glued on and how should I remove them?

A couple of years ago (around 2010 I think), I bought a number of the Star Wars magnet sets, as they looked like a (slightly) economical way of buying a number of specialist characters (including the ...
17
votes
3answers
5k views

What is LUGBULK?

I have heard that LEGO have (or had) a programme called LUGBULK whereby clubs can purchase bulk lots of LEGO components direct fom LEGO. Is that true? If so, is it economical and how can I get ...
17
votes
3answers
4k views

Why does LEGO now use studless technic designs?

It seems to me that sometime between 1998 and 2006 (between the Mindstorms RCX and NXT), LEGO switched from using studded technic bricks (like this:) to studdless beams (like this): In my ...
17
votes
2answers
1k views

What are the practical bounds of a minifigure?

I want to make some minifigure-scale vehicles and devices, but I am wondering what the smallest possible minifigure enclosure might be. I know minifigures are not perfectly square. Their arms and ...
17
votes
1answer
2k views

How can I make a working pin tumbler lock?

I'd like to make a working pin tumbler lock out of LEGO bricks. I have already designed a key I'd like to use that should be compatible with five cylinder lock.
17
votes
4answers
11k views

Is Mindstorms EV3 backwards compatible?

LEGO Group announced the next Mindstorms version, the EV3 which will be available in the Fall, 2013. Does anyone know if the new version, specifically the controller, will be backwards compatible ...
17
votes
3answers
5k views

Can you program Lego Mindstorms with the Scratch programming language?

My child is learning programming using Scratch in school. Can she program her Mindstorms using Scratch?
17
votes
1answer
1k views

What are LDUs and how do they relate to LEGO bricks?

What are LDUs? I see technical people talking about plans and designs in terms of LDUs. I understand it's a measurement unit. What does it mean and how do LEGO bricks relate to them? Why are they ...
17
votes
4answers
8k views

As of November 2011, should I buy the NXT 2.0 now, or wait and buy the NXT 3.0 later? [closed]

I have played with the original RCX when I was in school, and I'm so in love with it. Now I have just got my first job and I would like to get an NXT robot. However, I saw in this Wikipedia article ...
16
votes
15answers
6k views

My poor minifig's head is stuck in his helmet!

Recently I made a LEGO race car with a driver who wore a helmet. Unfortunately, after the race, I tried to take off his helmet and his head came off inside the helmet. Any suggestions about getting it ...
16
votes
6answers
2k views

How can I easily remove a jumper plate without a brick separator?

How can I easily remove a jumper plate? I find a it very difficult to remove this kind of brick with a brick separator.
16
votes
3answers
2k views

How do I build a sloped roof with a 60° rake?

I've seen the sloped roof on the "Winter Village Post Office" and similar using plates, and I want to build a roof with a similar angle: What should I use to ensure they are well attached?
16
votes
3answers
5k views

Lego set for 17 year old

This might sound a little bit silly, but I'm 17 and I've never built a LEGO toy, so I was looking for a first one, to see what it's about. What sets would you recommend I should look at, that are ...
16
votes
5answers
1k views

Are there any health concerns with letting children use old LEGO kits?

I have a hoard of LEGO kits that passed from me to my nephew, and now to my son. Some of the kits that are included with the set date back to the early 1970's. Are there any health risks with passing ...

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