All Questions

Filter by
Sorted by
Tagged with
24 votes
2 answers
6k views

Which sets can be built in the bag (all the parts are in one bag)?

I've had the chance to participate in some "build in the bag" contests at some events. The idea is simple: each contestant gets a small set (usually provided by LEGO for the occasion), and everybody ...
Joubarc's user avatar
  • 21.2k
7 votes
1 answer
464 views

How should I model a Heroica Banquet hall?

My son had a great idea for his Heroica game: Convert one of the desks from the Fortraan set into a table with food, and then your Hero could stop there and eat to regain health. I pointed out that ...
Zhaph - Ben Duguid's user avatar
11 votes
1 answer
363 views

How much depth does the NXT battery pack add?

The NXT rechargeable battery pack does not fit flush with the back of the NXT brick like the battery cover (used with 6xAAs) does. I don't have the battery pack (yet), so I was wondering how much ...
retracile's user avatar
  • 1,569
9 votes
1 answer
1k views

Where can I download the Samantha Field Control System?

Could someone please provide a download link? It seems that all traces of the program has disappeared from the internet, and I need this to get my robot moving wirelessly. Any help would be greatly ...
William's user avatar
  • 387
16 votes
2 answers
2k views

Is it safe to overload LEGO train motors?

When I was in Fana'Briques in 2008, there was a speed record competition for TGV-themed train. The setup used a section of custom-made straight track (aluminium rails if I remember correctly) and was ...
Joubarc's user avatar
  • 21.2k
14 votes
1 answer
5k views

Can I use a generic (non-Lego) transformer with a rechargable Power Functions battery?

I've recently ordered a LEGO® 8878 Rechargeable Battery Box: I was wondering if I really need to get the (rather expensive) LEGO® Power Functions Transformer or if I can substitute a (cheaper) ...
Kramii's user avatar
  • 9,121
11 votes
2 answers
805 views

What is the Mindstorms NXT Education kit?

I am considering gifting some Mindstorms NXT 2.0 to school, because I think they would get great value from it. I see that there is an "education kit", and I wondered if that's the way to go. Does ...
AJ.'s user avatar
  • 535
22 votes
4 answers
10k 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?
AJ.'s user avatar
  • 535
6 votes
1 answer
1k views

Why does my NXT colour sensor not recognise colour on my iPhone?

If I point the colour sensor to my iPhone it does not recognise it, but if I point it to a piece of paper, it does. Does anyone know if there is a solution for this? I found some documentation online,...
user avatar
19 votes
2 answers
12k views

Is it possible to change the battery in a 54604 light brick?

I got 4 of these in in a bulk lot of Lego, but the lamp is getting quite dim in a couple of them. Is it possible to change the battery in a 54604 light brick? It looks like the brick should open, ...
Kramii's user avatar
  • 9,121
11 votes
2 answers
989 views

Why does this program work in LabView when targeted to computer but not to NXT?

I have a program written in Labview for my LEGO Mindstorms NXT 2.0. When the target is set to the computer, the program works just fine. However, when I set the target to the NXT, the program doesn't ...
William's user avatar
  • 387
14 votes
1 answer
747 views

Where do the pieces numbered 4255629 go in the Death Star (set 10188)

I just finished up the Death Star set, and while it comes with the usual smattering of leftover pieces, I've got two pieces numbered 4255629 (shown below) that never got used. I've scanned the manual ...
LittleBobbyTables - Au Revoir's user avatar
13 votes
2 answers
1k views

How can I connect the RCX 2.0 to an external power source?

I want to build an auto-feeder with the RCX 2.0 for my cat. The problem is, that I often had to exchange the batteries. Is there an adapter for the RCX to connect it to a power point?
Sibbo's user avatar
  • 2,175
15 votes
1 answer
3k views

How to repair leaky pneumatics?

Some of my pneumatics parts, mostly pistons, have seals which no longer prevent the air from escaping completely. On some parts they are unreliable and on others they are not working at all. Why do ...
Sebastian Wahl's user avatar
23 votes
7 answers
85k 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 ...
Jason Berkan's user avatar
24 votes
3 answers
8k 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 ...
Kramii's user avatar
  • 9,121
13 votes
2 answers
941 views

Does the basic 2 x 4 brick have a common nickname?

Some bricks, such as the Erling brick, seem to have common nicknames in the LEGO building community. As the basic 2 x 4 brick appears to be the foundation of the system, it is reasonable to suppose ...
Kramii's user avatar
  • 9,121
28 votes
6 answers
85k 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)...
Pubby's user avatar
  • 5,226
32 votes
9 answers
8k views

What is the smallest LEGO component?

When I purchase bulk LEGO bricks, one of the first things I do is to tip the whole lot into a mesh bag and give them a good soak in the bath (of course, I remove all the electrical bits etc. first). ...
Kramii's user avatar
  • 9,121
16 votes
4 answers
556 views

How can I fix a flattened gear?

I have an old small gear that somehow got flattened to an oval shape. The axle hole is too narrow to slide a bar through, although it is not completely closed shut. How can I repair this gear?
Pubby's user avatar
  • 5,226
11 votes
1 answer
13k views

How can I create a simple steering mechanism for a car?

Just curious about this. How can I create a simple steering mechanism for a car? Either motorized or non-motorized solutions are fine; just not overly complex.
daviesgeek's user avatar
  • 1,085
16 votes
3 answers
8k views

How can I build a LEGO marble pump?

All right, here's a tough one for ya'll. How can I built a marble pump out of LEGO bricks? What would the mechanism which pushes the marbles up need to look like? Here's an example in this video: ...
Peter Cassetta's user avatar
14 votes
7 answers
7k views

Does anyone have any successful techniques in searching for lego bricks in a pile?

We typically tip our box of Lego bricks onto a giant sheet (so that it can be easily picked up) but searching for bricks becomes really tricky and time consuming. You often remind yourself, "you'll ...
davidsleeps's user avatar
18 votes
2 answers
3k views

Are Samsonite gears compatible with modern Technic gears?

Do the old Samsonite gears (above) work with current Technic gears (below) LEGO bricks tend to be backward compatible with older bricks, but since I don't own any Samsonite gears I cannot tell. ...
Ambo100's user avatar
  • 17.6k
11 votes
1 answer
1k views

How can I make a brick-built wheelbarrow?

I'd like to make a brick-built wheelbarrow to fit on a construction site that can be held by minifigures hands. I've seen prefabricated Duplo/Fabuland wheelbarrows as well as a new wheelbarrow in a ...
Ambo100's user avatar
  • 17.6k
16 votes
2 answers
9k views

Can I use RCX sensors and motors with the NXT brick?

I have a bunch of motors and sensors from the original Mindstorms set. It seems a shame I can't use these with the more recent NXT set. Are there any unofficial modifications that allow you to convert ...
Ambo100's user avatar
  • 17.6k
10 votes
2 answers
27k views

How do I make my own LEGO stickers?

I'd like to make my own stickers like the ones produced for LEGO sets using a design I've made in Photoshop. What do I need to make stickers for LEGO, what kind of printer do I need? Will the ...
Ambo100's user avatar
  • 17.6k
16 votes
1 answer
2k views

Why does the Erling brick have a ridge below its outward facing stud?

Why does the Erling brick (#4070) have a ridge below its outward facing stud? Whereas the more versatile and less common #87087 does not? The #87087 piece also has a better use in SNOT usage, as it ...
Ambo100's user avatar
  • 17.6k
11 votes
1 answer
1k views

Is 'plate between studs' SNOT supported by one of the LEGO building software?

Do any of the multiple LEGO building software supports 'plate between studs' SNOT assembly?
pcantin's user avatar
  • 13.5k
14 votes
1 answer
2k views

How can I build Victorian Style windows?

How can I build Lego Victorian style windows, like those on the White House or Capital Building? This is one style I have done, which, as far as I know, was an original idea by me:
calboy's user avatar
  • 325
21 votes
3 answers
2k 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 ...
sblair's user avatar
  • 313
8 votes
2 answers
3k views

Is there a good way to build a dome on the top of a building?

How can I build a dome on top of a building, similar to a state capital or something similar? The building has a base of 16x24 studs.
calboy's user avatar
  • 325
14 votes
1 answer
1k views

How can I create a visually appealing Castle wall from one colour?

I have a bag of hundreds of classic light grey 2x4 bricks, and 2x1 bricks. How can I use these to make some interesting castle walls?
Mr. Shiny and New 安宇's user avatar
26 votes
1 answer
6k 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 ...
jfyelle's user avatar
  • 3,242
39 votes
6 answers
57k 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 ...
Drake's user avatar
  • 493
48 votes
7 answers
59k 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 ...
Jasarien's user avatar
  • 583
21 votes
1 answer
21k 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 ...
HaydenStudios's user avatar
20 votes
5 answers
4k views

How to make a 1 ldu offset?

LDraw units are defined so that a simple 1x1 brick has a side of 20 ldu and a height of 24 ldu. Using simple building techniques, it's easy to create 2 ldu offset, as illustrated in this picture, ...
Joubarc's user avatar
  • 21.2k
11 votes
2 answers
785 views

How should I model a Heroica scale castle bedroom?

My son has requested that we add a bedroom to our Heroica castle. I'm looking for some advice on the creation of the bed area. The Microfig characters are 1x1x2, and the rooms are generally designed ...
Zhaph - Ben Duguid's user avatar
25 votes
2 answers
2k 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 ...
RedRiderX's user avatar
  • 1,399
23 votes
1 answer
1k 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 ...
Caleb's user avatar
  • 1,065
15 votes
4 answers
31k views

How can I wirelessly connect the NXT and an iOS device?

I've seen videos around YouTube (like this one for a car) that show an ability to control a Mindstorms set via iOS (either iPhone or iPod Touch). I am just getting started with Mindstorms, but find ...
Matthew Bernhardt's user avatar
27 votes
5 answers
18k 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....
Zhaph - Ben Duguid's user avatar
38 votes
6 answers
3k views

Does longterm storage in a connected state harm the studs/tubes?

Does storing bricks in a connected state lessen their longevity?
Major Stackings's user avatar
7 votes
2 answers
9k views

How can I get my NXT to turn on - all it does is softly click?

Recently when I plugged my NXT brick into my PC I clicked on the wrong option and now all it does is clicks when I turn it on? How do I get it back to a usable state?
Zhaph - Ben Duguid's user avatar
9 votes
3 answers
2k views

Where can I find LEGO X-Pod Playoff rules and printoffs?

Where can I find X-Pod Playoff rules? LEGO doesn't seem to be hosting them anymore. Asked because of this question. Hopefully it can be mirrored on a few sites so that it doesn't disappear again.
Pubby's user avatar
  • 5,226
13 votes
4 answers
3k views

Can I use the WeDo USB hub with normal Linux distributions?

I haven't found a lot of detail on the WeDo USB hub. Is this device usable with Linux? I found one article that indicated the OLPC XO had support for it, but it implied there was custom support ...
retracile's user avatar
  • 1,569
20 votes
3 answers
24k views

Is there any application to keep an inventory of owned sets and pieces?

I'm looking for a desktop application that keeps track of sets and pieces owned. Ideally something that would look up LEGO databases such as Peeron or others in order to add the pieces in a set ...
Reven's user avatar
  • 1,019
13 votes
4 answers
1k views

How can I make micro-scale water?

This is totally boring: How can I add some variance to it that helps to distinguish a rippling lake from a raging ocean from a fast-moving river, while keeping a look that's appropriate for micro-...
user avatar
13 votes
3 answers
2k views

How should I create a Heroica scale graveyard or crypt room?

I've recently started playing Heroica with my sons, and we want to take this further, so I'm looking for some suggestions on modelling a graveyard or crypt room. As an example, here's a model of the ...
Zhaph - Ben Duguid's user avatar

15 30 50 per page