All Questions

1
vote
1answer
80 views

Programming RCX in 10.9 environment

My school has 15 RCX robot kits that this year has just been sitting because all the old computers with OS X 10.4 are now gone and we are using OS X 10.9. I would like to run the original RoboLab ...
20
votes
16answers
23k 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 ...
1
vote
1answer
132 views

Direct command lego ev3 [closed]

Is there any documentation about direct command bluetooth of EV3? Thanks, regards!
1
vote
1answer
387 views

Code for PID for EV3-g

I want to use PID for my Ev3. I used PID for NXT-G before, but I have never used EV3-G before and don't know how to get PID. Could someone please post a screen shot of the code or upload the file?
-1
votes
1answer
86 views

LEGO mindstorm - which product to use to make projects mentioned below

I have to buy Lego Mindstorm kit for some projects. I really have never used Lego before, my friend asked me to consult him about projects (I use micro controllers and make robots from material I ...
1
vote
0answers
87 views

What method do you use to figure out what set you have? [duplicate]

This question really got me thinking about this: I bought a second hand pack of pieces and it looks like it may be a specific set How do you even go about figuring that out? How would you even start? ...
12
votes
6answers
2k views

Repairing Lego minifigure torso cracks/damage

I have a ton of Lego minifigures that I really put through their paces throughout my childhood (fighting pirates, exploring space... basic stuff really). A number of them are damaged on the torso. ...
0
votes
1answer
192 views

Guide me on how to use my Mindstorm RCX kit on OS X Mavericks

Any suggestions on how I can use my old RCX set on Mavericks? I have set up Xcode command line tools, and I am getting compiler errors while trying to download nqc through Macports. Even downloading ...
3
votes
1answer
135 views

How can I use 1 motor for grabbing/lifting and another for moving?

I am really stuck on how to use the three motors for better functions. Is there anyway in which I can use 1 motor for efficient/quick movement while turning left and right? Another thing is whether I ...
0
votes
1answer
60 views

Decals for Lego Pharaoh's Quest Flying Mummy [duplicate]

Do all lego sets have decals? I am specifically looking for decals for Lego Pharaoh's Quest Flying Mummy.
3
votes
1answer
211 views

I bought a second hand pack of pieces and it looks like it may be a specific set

Hoping for help to identify a set of lego pieces. It definitely has a car wheel base, and the base boards are green.close
4
votes
1answer
111 views

How much does the NXT brick weigh?

I am working on a project that involves LEGO Mindstorms bricks but for some tasks I want to know the weight of the NXT brick, so I would be pleased if anyone can help me.
1
vote
2answers
116 views

I need information on LEGO part #3001 in Milky White with Sparkles

Have a 3001 part i have come across with a color i've never seen before. It seems to be a milky white but with glitter in it. New style logo with pip on short side. Any ideas to where it came from?
16
votes
4answers
825 views

Which hand is this minifigure extending normally?

I remember more than one argument with a friend over which way LEGO minifigures' hands should be oriented to be correct (with the thumb pointed upward/inward, like a human hand's neutral position). ...
10
votes
4answers
942 views

How should I go about selling $3k worth 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 ...
10
votes
2answers
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 ...
1
vote
2answers
181 views

What is the easiest way to sell Lego sets for a good price?

I have a HUGE collection of LEGO sets that I want to sell. Ebay is too cheap and Craigslist takes too long. Is there an easier and faster way to get some good money?
3
votes
3answers
95 views

Cheap Lego sets for Kindergarten classroom?

I am wondering what is the best way to get a set of Lego bricks for my kindergarten classroom? The children love playing with them and I no longer own them due to a transfer of grade levels.
9
votes
1answer
190 views

What's the purpose of the clutch gear in Power Functions set?

I have just bought this set and wonder the purpose of the white gear in the middle: How can you use it in your Lego Technic projects? Is it available in other sets?
4
votes
1answer
166 views

Identification of arm like beam

Any part number information about this technic beam?
3
votes
1answer
317 views

What is the history of the Marvel license between LEGO and Mega Bloks?

I just recently learned that LEGO had the license to do Marvel themed blocks back in 2003. When the Iron Man films came out, Mega Bloks produced several Marvel-themed sets. Now LEGO apparently has ...
3
votes
1answer
83 views

Does anyone have a picture of the Lego Club alphabet code from Bricks and Pieces magazine?

Somwtime maybe in the early eighties, I read a Bricks and Pieces magazine with a small panel showing the brick alphabet code and it would be great to have a picture of this if someone has it. This ...
4
votes
1answer
174 views

Help to identify a unique minifig head

I have a minifig head that I can't find on the Brickset website or else where. Not sure where it came from but found it amongst a pile of odd bricks my kids had collected years ago. The head is ...
11
votes
4answers
2k views

LEGO for a 1 year old

I have a son who has just turned one. I like my LEGO and my desk at work is covered in minifig's etc, the problem is my wife isn't as keen on them. I was wondering can anyone recommend a set that ...
4
votes
1answer
205 views

How to build an automatic Lego train system?

I was wondering if anybody has ever tried using the IRLink NXT sensor to make an automated train system and if so, what kind of setup did you have to make it all work? I have been working on a train ...
3
votes
1answer
53 views

Where can I find LDraw examples?

Where can I find LDraw files to download? I would like to have a collection of simple Lego examples and want to create step-by-step instructions for my youngsters.
17
votes
4answers
29k 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 ...
2
votes
1answer
44 views

How to make NXT bricks communicate information?

Is it possible to connect, in some way, two NXT bricks that has program functions running on both. For example, Brick one would tell brick two that it is okay to start a program. Are there any sensors ...
3
votes
2answers
59 views

Is there a time mechanism that can be added to an NXT program?

I wanted to create a system where an NXT block would be set into function at a certain time of day (maybe 5:00 and then 5:10 and so on). I would want the timing function to be embedded into the NXT ...
3
votes
2answers
229 views

Where are the cloth / fabric minifigure capes / cloaks in my set?

I purchased The Mines of Moria (Lego Lord of the Rings item 9473) directly from The Big Store in Legoland, Florida. When I opened it up at home, the capes / cloaks for Pippin and Boromir were ...
16
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 ...
1
vote
1answer
81 views

Where can I buy engraved LEGO bricks?

What is the cheapest site to buy engraved LEGO bricks? I am searching for the cheapest site to buy engraved 2X4/2x6 bricks so that I can put names on them and send them to people. Any insight is ...
0
votes
2answers
171 views

Are NXT Light sensors compatible with EV3?

I would like to use the NXT light sensors my EV3 brick. I don't have enough light sensors as I need 2 for each robot (per set) and it only comes with one. However, I have a lot of NXT sensors. Will ...
2
votes
3answers
307 views

Authentic or Not?

I browse periodically on eBay and see a lot of superhero lego minfigs. Are these real or Chinese knockoffs? It says that they're from China. I just search "lego minifigures". ...
6
votes
2answers
598 views

How can I find the value of a LEGO set over several years?

Bricklink has this handy feature on its site which allows you to view the average selling prices of a particular set based on previous auctions. I like this feature, but unfortunately, it only ...
5
votes
4answers
2k views

What are the pros and cons of using a Lego rental service such as Pleygo?

Anyone used Pleygo which is a website advertised as A Netflix-like rental service for Lego® sets? What are the pros and cons?
3
votes
1answer
113 views

What is this model number please?

I don't have the instructions for this and I have no idea what model number this is. Can anyone identify it?
8
votes
2answers
151 views

Is there an XML format for Lego?

I've seen some pretty neat applications using customized XML formats. There is a Musical Notation XML so that a user can create sheet music on XML. With the right software, that XML can be converted ...
2
votes
1answer
326 views

Why are Lego products so expensive in Europe?

Comparing a few Lego products at the official online store, I found U.S. prices seem to be consistently around 70% of those in Europe given current currency exchange rates. That's a surprising ...
9
votes
3answers
3k 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: ...
3
votes
2answers
259 views

How to differentiate Cellulose acetate vs ABS LEGO bricks?

If one had a large tub of old LEGO brick, with some pieces going back to the 1950s, but all mixed together, are there any distinguishing features or appearance to the 1950s cellulose acetate bricks ...
23
votes
6answers
878 views

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

Does storing bricks in a connected state lessen their longevity?
17
votes
5answers
993 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 ...
6
votes
1answer
103 views

Tips on shipping large sets (super star destroyer, 2001 Discovery ship)

I have two large sets I'll need to sell when I move (SW super star destroyer, and 2001 discovery). They are both very long (5 feet?) and impractical to ship complete. Any tips for newbie in best way ...
6
votes
1answer
2k views

What sites are available to sell original boxes?

A couple of years ago, I stumbled across a site (not Ebay) where LEGO fans buy and sell items. I have some large boxes for various sets to sell. All my son's LEGO collection is in plastic boxes, and ...
4
votes
1answer
1k views

How to sell massive, vintage and unsorted lego collection with manuals?

So I was a big LEGO collector as a child in the early 1990s. The genres I have are town/city, pirates, and castle. To store them, I broke them all down to fit into 2 giant plastic tubs. I still have ...
3
votes
2answers
172 views

21104 NASA Mars Curiosity Rover?

Has Lego made a public statement why they stopped producing the Curiosity Rover set? Each of its few production runs sold out in hours. Why won't they take my money? More importantly, how do I get a ...
4
votes
1answer
151 views

How can i use my iPhone to scan a barcode and send it to my EV3 brick?

I'm trying to build a sorter that scans the barcode on the brick using an iPhone and sorts it accordingly to the barcode. I cannot use colours due to amount of things to sort.
3
votes
1answer
141 views

Lego 7670 has two different box designs?

Does Lego 7670 (Hailfire Droid and Spider Droid) have two different colored boxes? I am seeing two different boxes on Ebay and other sites. One is a white clone wars box, and the other is a dark red ...
8
votes
1answer
617 views

Do old LEGO bricks contain lead?

I have a set of LEGO bricks from Denmark and they were made in the late 1960's; should I be concerned about my son playing with them because of any danger of lead in the product?

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