7
votes
2answers
357 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 ...
7
votes
1answer
378 views

How to simulate Lego Mindstorms programs written in C#?

I am going to do some programming for Lego Mindstorms in C# using http://www.mindsqualls.net/ and have a question. Is there any good simulator to see result of my program without uploading the code ...
7
votes
1answer
346 views

Lego with hollow posts underneath - dates?

When did TLG change the small posts on the underside of the modern bricks and plates , eg 1x6 and 1x4, to hollow ones?
7
votes
1answer
881 views

How do the train wheels turn so smoothly?

After assembling a train or its companion wagons, I'm always impressed at how smoothly the wheels glide over the track. When putting them together, it's just a metal axle with two wheels on each end ...
6
votes
2answers
356 views

What is this yellow hinge piece named?

Recently, I've been flipping through a scan of the March 1995 edition of the LEGO Mania Magazine. Something in the corner of page 11 caught my eye: This is the 5th step of the "Flip & Build" ...
6
votes
2answers
549 views

Damage Boiling LEGO Bricks

I bought some LEGO bricks from shop on Bricklink and received them yesterday. In order to make sure that the pieces were nice and clean (they were used) so that my two year old can play with them, I ...
6
votes
3answers
597 views

Why are there no faces drawn on the black heads?

There were two black heads in the Star Wars 2011 advent calendar and neither had a face drawn. Is that because there was no face necessary since it was going to be covered with a mask anyway or is ...
6
votes
2answers
280 views

What part(s) can I use to connect technic liftarms at a 90 degree angle?

Is there a way to connect the two beams in this angle and still keep the connection strong and keep the rotation the same?
6
votes
2answers
1k views

How does the cost of a LEGO railroad compare to a traditional scale railroad layout?

How do the costs compare between a railroad layout constructed with LEGO trains and a nearly identical layout using traditional scale models, such as HO?
6
votes
2answers
186 views

How well do LEGO assemblies hold water?

Water is commonly represented with blue pieces, but what if I tried adding real water to a setup? For example, I create a simple blue base with a rectangle making a sort of pool. If I fill that ...
6
votes
2answers
700 views

How to Make a Lego Claw Arm?

I am trying to build a lego claw arm to pick up stuff that is out of my reach and I need some ideas on how to design it. I would like a mechanism to be able to open and close the claw from the ...
6
votes
2answers
552 views

Does Toy 'R Us (or more expensive-than-average) retailers have more extra parts than average?

I haven't bought LEGO sets for a while, as my kids are just getting old enough to make the sets, but I am assembling the LOTR sets which I find impossible to resist. I bought Gandalf Arrives (9469) ...
6
votes
3answers
758 views

Simplest approach for rail sets automation

How would you tackle the automation of a lego rails set. I am looking for a solution that can be achieved with available parts. From the answer I will chose either to invest into lego rail sets for ...
6
votes
1answer
337 views

Whose Head is this?

I've found this kind of cool looking minifigure: Apologizes for the poor picture. :( But after some research, I think I have determined that this body would have come from set 6584 - Extreme team ...
6
votes
3answers
493 views

Can Lego soccer (football) parts be used for anything other than soccer?

I had the Lego soccer field, but took it apart. What else can the parts be used for besides soccer? I'm specifically wanting to know about the green bases and minifigure stands.
6
votes
1answer
310 views

What is the true angle of a cheese slope?

What is the true angle of a cheese slope? Bricklink lists it as "Slope 30 1 x 1 x 2/3" while LDraw and Peeron list it as "Slope Brick 31 1 x 1 x 2/3". Why do these sources disagree, and what is the ...
6
votes
5answers
347 views

Which brands (fictional and non-fictional) have appeared in the Town/City theme?

A few years ago I wrote an article about the fictional organisation logos found in the City theme. I'd quite like to revisit this, as I'm sure I must have missed some. I also only focused on the ...
6
votes
2answers
770 views

How to sort complete sets from box of unsorted LEGO

My son has thousands of pieces of LEGO, but he has them all dumped in a box. Is there any way to figure out what sets they went to if I don't remember the names of them?
6
votes
4answers
574 views

Are these trees LEGO parts?

I've come across some trees from some bulk purchases I've made, and I can not determine if these are LEGO or "compatible" parts. Any ideas? The tree on the left is an official tree but the one in the ...
6
votes
4answers
3k views

How can I convert an image's pixels to actual LEGO colors?

The LEGO Group released a few "mosaic" sets a while back, which came with clear baseplates and a bunch of 1x1 bricks. I have been wondering recently if it is possible to use an image as a reference ...
6
votes
2answers
2k 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: ...
6
votes
2answers
2k views

How can I identify kits from a box of parts?

I am a life long Lego Maniac, and my kits from when I was a kid were passed down to my nephew, who has just passed them down to my son (40 years of history...). The trouble is that none of my old ...
6
votes
3answers
2k views

Are there any lego base plates that are compatible with duplo?

I'm thinking of making a lego table but my 2 children both use different lego. My oldest uses normal lego and my youngest uses duplo. Just wondering if there is a base plate that both types of lego ...
6
votes
1answer
235 views

How many styles of element separators has LEGO produced?

I used to use other LEGO elements to separate tightly bound pieces in my collection. My thumb nail and I were quite pleased when I first discovered an actual brick separator LEGO introduced to ease ...
6
votes
3answers
405 views

Are there SNOT models with instructions for beginners?

I would like to introduce SNOT building to my daughter. I have used this method only a few times myself and when I did, I was just messing around. I feel it would be simpler and less frustrating for ...
6
votes
2answers
3k views

What are the exact dimensions of a DUPLO brick?

The dimensions of LEGO brick are documented well, but what about DUPLO bricks? If have only found the general statements that DUPLO is twice as large as LEGO but no exact numbers. What about the ...
6
votes
2answers
2k views

Are there any African American LEGO minifigures besides the ones from the “Sports” basketball series?

I was wondering if there were any African American LEGO minifigures besides the ones from the sports basketball series... I got a brown head from a LEGO Stormtrooper set instead of a black one. I then ...
6
votes
2answers
188 views

Which “Real World” Company was the first to have its' name featured in an actual (numbered) Lego set?

Excluding the Lego company, which "Real World" Company was the first to have its' name featured in an actual Lego set?
6
votes
4answers
2k views

Lego Digital Designer Alternatives

I am been using LDD (Lego Digital Designer) for my latest NXT project and noticed a major delay in building and making instructions for my Projects (My Mindstorm projects contain well over 500 pieces) ...
6
votes
2answers
385 views

Alternative (back of box) builds of 7822 Railway Station - is there an 'official' configuration where the track terminates at the station?

I am looking for a scan or photo of the back of the box of the 7822 Railway Station Background: As is common with Lego sets, there are a number of alternative builds pictured on the back of the set ...
6
votes
1answer
370 views

What is this challenge to solve the Rubik cube as quickly as possible using LEGO bricks?

I saw videos of people participating in race to resolve a Rubik cube as quickly as possible using Mindstorm LEGO robots. Can you provide information if there is a competition, who is involved? What ...
6
votes
2answers
365 views

What is the history of “Modulex” blocks?

I have seen a few very small models using something called "Modulex" pieces and have even heard that they are directly related to LEGO somehow? They don't seem to be around anymore so I was wondering ...
6
votes
2answers
225 views

How can I remove a rubber band from a pulley?

We have a pulley and a bunch of rubber bands: We don't know that part numbers, but they all were part of a Mindstorms (RCX 2.0) set. My son was trying use the pulley and band to transfer power to ...
6
votes
2answers
4k views

What are some examples of advanced train layouts possible with the PF train sets?

I recently got my first train set, the Constitution Chase, and it has sparked my imagination for building train layouts. My 3-year-old son has a small collection of wooden trains and we enjoy building ...
6
votes
2answers
946 views

Exact dimensions of studless Technic beams

I'm looking for the exact dimensions of the studless Technic beams. I found a number of answers for studded beams but there are some more aspects for the studless beams which are not covered. I'm ...
6
votes
1answer
169 views

Who built the LEGO structures for the film “Elf”?

My daughter greatly enjoyed the look on my face when the guy destroyed Buddy's LEGO models in the film Elf. She wishes she had a picture of me. The question is: Does anybody know who built the LEGO ...
6
votes
2answers
396 views

How do I build a paper feeder with LEGO to transfer a single sheet of paper from a deck robustly?

I want to create an apparatus (which might be called a paper feeder) to take a still image for each paper taken from a deck of 500 sheets robustly. Robustly means that the apparatus must guarantee all ...
6
votes
1answer
655 views

What are the electrical properties of electric LEGO systems?

Several electric LEGO systems exist: LEGO Trains LEGO Technic Power Functions (PF) LEGO Mindstorms (in several versions) ...? How do these systems differ in electrical properties and which systems ...
6
votes
1answer
814 views

What range of parts do LEGO Stores offer, or is it just sets and games?

I've seen these pictures of LEGO stores but have been unable to work out if they are plastic bubbles on the wall that you can dig you hand into and buy lego bricks in bulk, or is just for decoration. ...
6
votes
3answers
715 views

Can you build accurate models using 100% LEGO elements by following Megablocks instructions?

I shudder when I find errant MegaBloks in my LEGO elements, but admit to admiring certain in-the-box models offered by them. I know the pictures depicted on the MB boxes are not actually photos of a ...
6
votes
1answer
169 views

What are the names for these two pieces of a car chassis and a piece for above the wheels?

I have the following pieces but cannot find their names nor precise usage on BrickLink or elsewhere The black one has a wheel well on each side - sorry for the poor image quality. Both the red and ...
6
votes
2answers
488 views

Which resolution is necessary to print bricks with a 3D printer?

I would like to print LEGO compatible figures. Which resolution is required for the 3D print in order to firmly fix the figures on LEGO bricks?
6
votes
2answers
1k views

Whatever happened to Architecture 21015 Eames House?

The set was scheduled to be released in 2012, no such luck. Any idea on why it never came out? Was looking forward to building it.
6
votes
1answer
517 views

List of prototype or unreleased themes

I recently discovered the unreleased "Seatron" theme (basically an early Aquazon prototype with elements from M-tron) as I was looking around for building ideas. After some searching, I also found the ...
6
votes
1answer
162 views

Are third party NXT compatible parts safe to use?

I bought the Mindstorms NXT for my son's coming birthday and I noticed that there are several places you can get third party parts to use with it (sensors, connectors, etc). Are these safe for the ...
6
votes
1answer
331 views

Are the molds for LEGO bricks maintained in house or is maintanance partly outsourced?

I'm a maintenance engineer myself and busy with my MBA courses with the following strategic question: what maintenance can be outsourced or not. I was wondering if Lego does all maintenance of the ...
6
votes
1answer
742 views

Replacement power cable for Mindstorms RCX

I have an old Mindstorms 1.5 RCX. The plastic on the power cables has degraded, and they short out and don't work well. These look like they would work as replacements, but I'm not exactly sure. I ...
6
votes
2answers
856 views

Can we program Nxt2 in C++ under Visual studio 2010?

I'd like to know if it is possible to develop C++ software for NXT2 using Visual Studio 2010 as IDE. I know there are small online projects for NXT but I can't find nothing about NXT2.... Any ...
6
votes
1answer
326 views

Is there a way to convert a 3D model into a lego sculpture?

After researching this question for a few days, I want to post it here so I can share what I learned in an answer, and hopefully learn some new techniques too. If anyone has found another way to do ...
6
votes
1answer
156 views

Can I repair a broken LEGO brick with glue?

I have a dump truck hinge piece that snapped in half when it got bent backwards too hard. Is there a type of glue that would be appropriate to repair the piece? Would superglue be a good choice? ...

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