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85
votes
7answers
46k 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. ...
43
votes
18answers
50k 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 ...
68
votes
5answers
142k 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?
14
votes
5answers
27k views

How to use Power Functions with Mindstorms EV3?

Having learned that Mindstorms EV3 doesn't work directly with Power Functions, Q: Can you use Power Functions motors with the EV3 programmable brick? A: No, the connector does not match. I ...
71
votes
11answers
192k views

What's the most cost effective way to buy bulk LEGO bricks?

I've found a couple places to pick up bulk LEGO, but they all have various issues. Bricklink - I found their user interface confusing, clunky, and straight out of 1998. I'm aware of a couple of ...
45
votes
13answers
175k 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 ...
40
votes
8answers
8k views

What are the best LEGO 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 ...
53
votes
5answers
47k 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?
26
votes
5answers
16k 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, etc....
7
votes
6answers
26k 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 ...
30
votes
2answers
38k 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?
32
votes
4answers
24k views

How many different colours of LEGO bricks are there?

Excluding translucent pieces, how many colours of official LEGO bricks are there?
12
votes
4answers
51k 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 ...
39
votes
3answers
15k views

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

I have a BMW Williams F1 LEGO set 8461 that I built when I got it several years ago. I unfortunately let it sit out on my shelf for a long time. The stickers have peeled and cracked and some have ...
25
votes
5answers
78k 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 Erling)...
49
votes
2answers
10k 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 cross-...
30
votes
7answers
2k views

Where can I find instruction booklets?

Is there any place where scans or PDFs of instruction booklets can be downloaded?
33
votes
5answers
32k views

Why do LEGO boxes have a maximum age limit?

I am wondering why do LEGO boxes have a maximum age limit printed on them? My girlfriend has just gifted me LEGO Starfighter (8088) and it has an age range of 8-14. Why not just write 8+? Are there ...
33
votes
1answer
14k views

How do I identify a Lego part?

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 of brick. How can I go about identifying what the brick is named and ...
15
votes
4answers
4k views

How should I go about selling a large number of unsorted LEGO sets?

Here is my problem. Over the years my son had me buy a large number of Star Wars sets (including 10179, 10188, 6211, 7676, 7675) and he built them. Then he traded (or lost) most of the mini-figs ...
7
votes
3answers
27k views

Lego Mindstorms RCX RIS 2.0 IR tower Windows 7 / 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 ...
42
votes
7answers
52k 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 ...
37
votes
4answers
4k 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?
31
votes
6answers
6k views

Does the LEGO Group condone war toys?

What is the LEGO Group's position on war toys? Other brands make tanks and army stuff. I noticed LEGO sets include more realistic guns in the Star Wars range than they used to. What's up with that?
34
votes
4answers
8k 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, ...
30
votes
2answers
6k 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?
18
votes
8answers
4k 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 of ...
17
votes
4answers
80k 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).
26
votes
2answers
10k views

How do you repair yellowed or faded Lego 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 ...
36
votes
4answers
8k views

How can I store LEGO bricks to prevent damage?

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 ...
21
votes
1answer
649 views

Why do some sets contain parts of an unrelated colour that are hidden on the final model?

With recent and current sets, I noticed that some contain parts of a totally different colour than the rest of the set. An example is 8200-1: Radiator Springs Lightning McQueen, which contains a blue ...
18
votes
4answers
14k 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 ...
35
votes
8answers
17k 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 ...
30
votes
3answers
5k 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 ...
27
votes
1answer
4k 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 ...
24
votes
2answers
20k 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 ...
22
votes
6answers
9k views

Why do some minifigs have yellow heads and some are flesh colored?

When did the flesh colors start and why? It seems yellow heads are here to stay too?
16
votes
1answer
17k views

NXT screen either flickering or blank, what do I do?

The screen on my LEGO MINDSTORMS NXT brick has just stopped working. It is either flickering, or blank. I have tried turning it on and off, installed fresh batteries, and I can even hear the selection ...
15
votes
2answers
2k views

Will playing with a PF train motor by hand damage it?

If one pushes a PF-motorized train by hand, will it cause damage to the motor, or any of the other parts (IR Receiver, Battery box)? It is essentially working as a generator when turned by hand, so ...
33
votes
7answers
10k 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, re-configuration)?...
21
votes
3answers
2k views

Why are LEGO sets put in such big boxes?

I am wondering why LEGO puts sets in big packages. All bricks are put in small plastic bags and from my experience the packaging could be at least half of what it is. There is so much told these days ...
2
votes
1answer
1k 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 ...
1
vote
1answer
17k views

How to sell a large amount of Lego

Hope someone can help. I bought my husband a huge bundle of Lego a few years ago, but he doesn't have the time to sort it, so we want to sell it on. We've identified a lot of the sets from pieces/...
30
votes
5answers
46k 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 ...
12
votes
1answer
1k views

Quick way to inventory parts

I have a rather large collection of LEGO elements that are not sorted in any way, and I'd like to keep track of them. There are a few other posts about ways to keep track of elements, and I've looked ...
6
votes
2answers
21k views

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 ...
40
votes
4answers
10k views

How do I build a curved wall?

On my latest MOC I want to build a round tower. This is a minifig-scale build, and the tower is going to have a diameter of about 20/30 studs. How should I go about building the "curved" wall of the ...
37
votes
14answers
16k views

Do LEGO bricks float?

Is it possible to build a boat out of LEGO bricks? I appreciate you couldn't make it watertight but would a LEGO boat float by itself due to the buoyancy of the bricks themselves? Pictures of any ...
23
votes
4answers
48k 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 ...
23
votes
1answer
2k 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?

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