18
votes
13answers
20k views

LEGO cleaning techniques and tools

Previously I've used toothbrushes but maybe these would eventually scratch the surface? What have you used? And was it easy? As well as cleaning, what about drying and buffing? Anyone tried polishing ...
45
votes
8answers
5k views

Do any programs exist that allow you to build your own LEGO manuals?

What I'm looking for is a program or website/webapp that allows "virtual" building of a LEGO model, step-by-step, and allows you to save these single steps to get a complete building plan in the end. ...
16
votes
3answers
6k views

How many different colours of LEGO bricks are there?

Excluding translucent pieces, how many colours of official LEGO bricks are there?
17
votes
4answers
19k views

What are the dimensions of a LEGO brick?

What are the real world dimensions of bricks? (starting with 1x1 brick) Plates? Studs? Does LEGO think of this in metric or imperial units or something else?
30
votes
11answers
26k views

What's the most cost effective and efficient way to buy bricks?

After a 20 year hiatus I picked up LEGO again as a hobby. I've been into the Trains lately and need bricks. I found a couple places to pick them up but they all suck for various reasons. The first was ...
21
votes
2answers
14k views

What kind of plastic are LEGO bricks made of?

It’s rather obvious that Lego bricks are made from plastic, but there are many kinds of plastic. Is the recipe for LEGO bricks plastic secret?
21
votes
2answers
3k views

What is the bley (blay) color?

I keep reading on various lego web sites about an elusive brick color called "bley" or "blay". What is it and what is the story behind this?
16
votes
2answers
2k views

What is an Erling brick?

I have seen people refer to the "Erling brick" or "headlight brick" on LEGO forums. What kind of brick are they talking about?
27
votes
3answers
6k views

Where or how do I get replacement stickers for my Lego set?

I have a BMW Williamns F1 Lego set 8461 that I built when I got it several years ago. I unfortuneately let it sit out on my shelf for a long time. The stickers have peeled and cracked and some have ...
26
votes
12answers
33k views

What glue should I use for permanent LEGO construction?

The incredible precision of LEGO parts makes them attractive for building precise jigs, but the fact that they can come apart fairly easily isn't so helpful for this application. Can anyone recommend ...
13
votes
1answer
8k 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?
16
votes
1answer
1k 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 ...
21
votes
6answers
512 views

Where can I find instruction booklets?

Is there any place where scans or PDFs of instruction booklets can be downloaded?
13
votes
8answers
1k views

Cleaning between the studs of a build

I've unpacked a few of my models after moving home some time ago, these models have been in a cardboard boxes for several months and need cleaning: I've tried compressed air, which only makes some ...
13
votes
3answers
54k views

Where can I download the LEGO Mindstorms NXT 2.0 IDE?

I want to see how well that IDE runs on my old Windows XP laptop. I looked on www.lego.com, but it seems to all be documentation (downloads).
9
votes
3answers
3k views

Is there a database of original Minifigure configurations, including their personal gear?

Is there a minifigure museum? I have a gallon jar (& more) of minifigures that my kids have mixed and matched. Is there a website I can reference in order to put the minifigures back in their ...
18
votes
3answers
3k 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, ...
17
votes
3answers
21k 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 ...
25
votes
3answers
2k views

How can I store LEGO bricks as long as possible?

I have some LEGO bricks which are probably about 10 years old. They've neither changed color in any way nor dried out or anything, so it seems to be as stable as ever. How should I store them so that ...
22
votes
5answers
1k views

How do I change the color of a brick?

I have a uniquely-shaped brick that I would like to make a darker shade of gray (it's currently blue). What media is the best in terms of durability for continued use (i.e. re-use, ...
14
votes
2answers
3k 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 ...
33
votes
2answers
2k views

Is there anything like a 'recipe generator' for LEGO models?

For me, most of the fun of LEGO toys, is building new things from the instructions. Rebuilding things can be fun, but if I know I have certain bricks (or even sets), is there somewhere to ...
19
votes
7answers
1k views

What are some storage options?

I have several Lego sets and I usually build them and then make them small enough so they fit back in the box for long term storage . . . but my dream is that I can take apart my model and organize ...
17
votes
5answers
6k views

How can I use more than three motors with one NXT brick?

I'm building Caterpillar Excavator with my NXT, and at the moment I'm trying to control 4 points of motion: 2 Caterpillar Tracks - These should be controlled independently to allow for cornering, ...
11
votes
5answers
2k views

Are companies producing custom molded LEGO pieces legally entitled to do so?

We have seen (or I have seen, given I am a member of a few popular BIONICLE fan sites) an uproar from custom molding companies -- that is, companies that create their own LEGO pieces. My question is ...
21
votes
5answers
2k views

Are LEGO minifigs' arms supposed to come off?

I can get the arms off my LEGO minifigs, however, will doing so repeatedly wear them out?
16
votes
4answers
25k 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 ...
16
votes
1answer
2k 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 ...
16
votes
2answers
7k views

What does the acronym MOC stand for?

This is a common acronym used in the Lego community - what does MOC mean?
15
votes
3answers
4k views

What is the largest Lego kit commercially available?

I believe the Imperial Star Destroyer is the biggest in terms of size, at 58.8 cm by 50.5 cm by 21 cm, and the Death Star in the number of pieces, at 3803. Are there any newer, bigger models?
25
votes
10answers
9k views

What tool can get two 1x2 plates apart without damaging them?

Teeth and pliers tend to leave unsightly marks on the bricks. Fingernails don't work too well. What tool do you recommend to separate them?
16
votes
6answers
1k 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.
10
votes
1answer
364 views

Why did Lego use the same number for two different sets?

For example, Ricky Racoon on his Scooter from 1979 is a completely different set from House with Garage from 1996, but they share the same number (324). Why did Lego recycle numbers like this? Do they ...
8
votes
1answer
1k views

Are the LEGO Friends Mini-dolls compatible with Minifigures?

I've seen the new LEGO Friends sets, and wanted to know if the Mini-dolls are compatible in any way with minifigs? I'd quite like to get some sets for the new colours however I want to ensure the ...
8
votes
1answer
360 views

Historically, what types of sets have proven to be a great investment?

My brother recently sold some of the lego he had as a child, and they went for a lot more than they cost originally, even taking inflation into account. So, what types of sets have risen in value ...
4
votes
1answer
11k views

Lego Mindstorms RCX RIS 2.0 IR tower Windows 7 / Windows XP driver

So I've recently dug up my old Lego Mindstorms RIS 2.0 (RCX) and have spent the past few days trying to install it into my Windows 7 laptop. It worked fine, except it could not find the correct ...
30
votes
6answers
14k views

Is there any other way to program the Lego Mindstorms NXT other than the provided software?

I'm curious to know if there is any way to program the NXT other than the provided software. I don't necessarily have any issue with the software. Does the program created by the software translate ...
21
votes
4answers
793 views

What are proven methods to sort/categorize a large number of parts?

How would you recommend to sort your lego parts? Finding a certain part in a box with parts of about 20 models takes ages :) Should I sort by color? Or by size? Another category?
19
votes
4answers
3k views

Has anyone automated the LEGO hand sorting process beyond “pawing & piling”?

I need to rephrase my question. Has anyone built or used a large pigeon hole/ chute/ bin collection system to sort LEGO elements? The sorting system doesn't need to be made of LEGO bricks. I just want ...
18
votes
3answers
4k views

Has anyone made their own custom LEGO bricks?

As I've just learned, LEGO bricks are made from ABS plastics. I wonder if it would be possible to make some simple molds at home, get some ABS pellets, melt them up and make your own custom bricks? ...
17
votes
1answer
842 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?
14
votes
1answer
724 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 ...
12
votes
1answer
662 views

What are all the different accessories that I can get for an NXT?

Pretty simple...What are all the different accessories that I can get for an NXT? I know this could turn into a list, but this will be a helpful list, I think.
8
votes
3answers
8k views

Alternative products compatible with LEGO [closed]

I heard that lately a patent for LEGO expired and now everyone can create a company to produce bricks that are compatible with LEGO. I am wondering how many of such companies are there. I know one ...
27
votes
3answers
12k views

Are DUPLO blocks compatible with LEGO blocks in any way?

Can I build a model out of both DUPLO blocks and LEGO blocks? Do they fit together?
19
votes
3answers
563 views

How do you plan large structures for easy and safe transport to shows?

Imagine I am building a large display that will cover many square feet and have both tall buildings and lots of small details. What are some techniques for making these things modular? Is it safer to ...
13
votes
2answers
4k 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 ...
9
votes
4answers
22k views

Is it possible to buy a bulk of 1000s of basic bricks (mostly 2x4)?

Several years ago I remember being able to walk into toy shops and actually shovel lego bricks into a bag and thus buy them in bulk. Unfortunately I can't seem to find stores anymore that offer this ...
16
votes
2answers
779 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 ...
15
votes
7answers
1k views

How can a sticker be removed?

In my younger days I may have placed a few stickers on my bricks. Including some that covered multiple bricks. Now my daughter has the tendency to do the same thing :) How can I best remove the ...

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