1
vote
4answers
382 views

How to put LEGO together upside down

I'm building a truck. For the transmission, I want to make it all even and symmetrical. To do that I need the pieces to stay together but they have no studs connecting so they will just fall apart. ...
1
vote
2answers
564 views

EV3 Brick Error Symbols?

I am currently developing an EV3 robot that sorts colored technic beams. However, the brick will only run part of the program and then generate a strange error code on the brick's screen. The error ...
3
votes
3answers
232 views

How many ways can six 8-peg lego blocks of six different colors be combined?

I have seen the number quoted as > 650 billion. The quote is from a Danish mathematician, Soren Ehlers. Intuitively, this does not seem correct to me. Any mathematicians/statisticians out there who ...
0
votes
0answers
9 views

Where to buy 'retired' products [duplicate]

I was searching 'minifigures' and came across: http://search-en.lego.com/?cc=GB&lang=2057&q=pirate&ns=1&x=0&y=0 where some products are 'retired'. How would I go about acquiring ...
1
vote
2answers
480 views

Creating a native EV3B block

I'm trying to create a native block for a hardware sensor. I've got it working pretty well, but can't get it to show up in the "port view" as anything but a sound sensor. I really need the live view ...
4
votes
1answer
80 views

Where did “LL 928” and “LL 929” come from?

Just finished putting Benny's Spaceship set together, and the Number printed on the side is "LL 929" which appears to be an increment from a much older set the Galaxy Explorer, which had "LL 928". My ...
0
votes
1answer
315 views

How to fit lego power function LED lights onto cargo train (set: 60052)

can anyone out there explain / illustrate how to fit lego power function white LED lights on the blue cargo train (set number 60052)? We have assembled the engine but I cannot see where or how these ...
0
votes
0answers
9 views

Running Robot commander and a program on the EV3 brick

Is it possible to run the Robot Commander app and a program on the EV3 brick at the same time? If so how would it be accomplished? Thanks Mark
2
votes
1answer
22 views

How to upload an XML file to wishlist in bricklink

I am triying to upload an XML file with all my brick wishlist to BrickLink. However, even if I follow the instructions on the webpage, it never seems to find the product in the catalogue. If I ...
5
votes
4answers
650 views

Set missing all the Minifigures and a few other parts

When I got the Quinjet set, I dug through every bag but the manufacturers forgot a few pieces and my set didn't have any minifigures. How can I get the missing minifigures and the parts I'm missing?
0
votes
1answer
17 views

Buy an specific set of bricks [duplicate]

I have a specific list of bricks for building a LEGO set that I found online, with approximately 300 pieces and around 70 different blocks. I have seen that one of the best ways for buying LEGOs ...
1
vote
1answer
52 views

How to fix The LEGO Star Wars Corellian Defender set

I was playing with my Corellian Defender which took me up to 4 days to build. It broke unfortunately and I am very sad since I love it very much. I need some tips to rebuild it back :(
0
votes
0answers
19 views

Connect two EV3 bluetooth with RobotC

It'is possible bluetooth connecting for two EV3 bricks using RobotC? Why send a numeric value from one to other?
2
votes
1answer
44 views

EV3 controlled by 8879 speed control through IR sensor

Is it possible to send commands to an EV3 brick from the Power Functions Speed Control remote? Would I have to interpret the raw sensor values to do this? Are there any references that would help?
4
votes
4answers
1k views

What other uses are there for pull-back motors?

Sets 42010 and 42011 feature a pull-back motor. They have a very high torque for a very small numbers of turns, they then free-wheel. I'm trying to find alternate usage for them. That is anything but ...
0
votes
2answers
38 views

Is there a guide that has the number and kinds of pieces per set? [duplicate]

Is there a guide that has the number and kinds of pieces per set - for example 8 pieces of this and 14 pieces of that? I am trying to sort out a large container of multiple sets. I have thousands of ...
7
votes
1answer
157 views

Lego Escher structures

How are these done? Is it trick photography? With some kind of giveaway background it should be obvious, but I notice they are not us telling that.
0
votes
1answer
121 views

Can Mindstorms EV3 communicate using protocol 802.15.4?

My aim is to make the robot communicate using protocol 802.15.4 through a USB dongle 802.15.4 over 6LoWPAN. The robot has to be able to get information from TelosB. I wonder whether this possibility ...
3
votes
1answer
158 views

Old sets, new bricks

Are there sellers out there that compile old discontinued Lego sets with new bricks? In other words they source new bricks and instructions to put together old discontinued sets. Thanks
1
vote
1answer
50 views

What is the quickest way to weed out compatible bricks from loose LEGO?

When I buy LEGO in bulk, I often find that there are at least a few clone brand bricks mixed in with them. What is the quickest way to weed out these non-LEGO parts?
4
votes
2answers
76 views

Is it possible to make inverted slopes with solid studs

Many(all?) of the inverted slope pieces have solid studs and hollow studs( e.g. 3665) and a void around the stud. This(void & hollow) looks very inelegant, is it really that difficult to make ...
8
votes
3answers
224 views

What are the tiny, single-peg, statuette figures from the SHIELD Helicarrier called?

As this video and this report show, the Marvel S.H.I.E.L.D Helicarrier comes with a number of decorative, single-peg statuettes / figures, representing in tiny scale: 8 agents, Nick Fury, Iron Man, ...
0
votes
1answer
27 views

Mindstorm EV3 no longer recognises SD card

I followed the instructions to install leJOS on an SD card, to get Java support for the mindstorm EV3 brik. The brik detected the leJOS files and processed the whole installation procedure ...
1
vote
2answers
95 views

Are BanBao bricks compatible with Lego?

Does anyone has experience with BanBao bricks? BanBao World Are they compatible with Lego bricks? They have basic sets and plates which are at a good price.
2
votes
0answers
24 views

PC To NXT Brick via Bluetooth

We have a fully-working java programme which can connect to another computer and can send messages from this(both sides run java and we used SPP Server and Client), however when trying to connect to ...
15
votes
5answers
781 views

How many minifigs have actually flown in space?

I want to know how many have been to space (they don't have to have returned.)
4
votes
0answers
99 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 ...
0
votes
2answers
44 views

Connection between two NXT bricks

It's possible send information from BrickNXT_A to BrickNXTB_B? For example I have a touch sensor connected with IN_1 of Brick_A and I want send the result of of sentor status (1 or 0) to the Brick_B. ...
3
votes
3answers
117 views

Is there a way to set a flat plane at an angle to horizontal of less than 22.5 degrees, but more than 0?

I am building an airplane with a wing dihedral (the wings angle upwards from the fuselage), but I am using parts 44302 and 44301 interlocked as designed: Unfortunately, one click up is about 22.5 ...
2
votes
1answer
140 views

Are there LEGO compatible CAD Files For Injection Mold Manufacturing?

I've designed some fun building brick sets that are compatible with LEGO but I know the market for them is smaller than what LEGO would be interested in. I've contacted some manufacturers at ...
3
votes
2answers
245 views

How long does official Lego monorail track last?

Given the high cost of official Lego monorail track, I was wondering how long it tends to last/if there are any maintenance tips or tricks? I'm planning on using power functions to reduce the ...
35
votes
12answers
45k 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 ...
2
votes
1answer
64 views

Best system for lifting things without pistons

So I am Building a Big walker thing with a mining laser on bottom that can be lifted on one half and the other attached to the vehicle but I cant seem to find a way because the hooks attached to the ...
2
votes
1answer
415 views

Cost of different works in a LEGO set price?

What percentage of a LEGO set's price goes toward research, design, manufacturing, marketing etc. It's just my curiosity since all my minifigures (from Series 3) are made in China and I don't know if ...
2
votes
4answers
106 views

Any elements that can be connected to the cavity under a stud?

Are there any elements that can be connected to the 'cavity' (i.e. the space) under a stud (e.g. on a regular plate or a regular brick)? The cavity measures about 2.4mm in diameter. So far I've only ...
1
vote
0answers
41 views

Can I use EV3 with a TETRIX motor?

What program can I use to control a TETRIX motor through the LEGO EV3? I've heard that RobotC currently cannot be used for this. Has NI released a Labview version which I can use to control TETRIX ...
9
votes
5answers
157 views

What's the most effective way to align 1x1 tiles?

There are a number of sets (e.g., the Farnsworth House and the Parisian Restaurant) that use a field of 1x1 tiles to represent a tiled floor. I have found aligning these pieces such that they are all ...
1
vote
1answer
59 views

Programming The Lego Mindstorms T-Rex from EV3 Laboratory

I bought the book The Lego Mindstorms EV3 Laboratory fron Daniele Benedettelli. I buid the T-Rex chapter 15 and when I tried to programming the T-Rex (chapter 16) I have a problem. I'm not able to ...
0
votes
1answer
49 views

What are the biggest one piece wheel?

I am wondering what the biggest one piece wheel is? (the inside part and the rubber part counts as one piece in my world)
1
vote
1answer
42 views

Alternative flowers

I'm compiling a list of elements that are compatible with the Plant Flower Stem. In addition to the Plant Flower Small, I'm aware of at least two alternatives — Friends Accessories Star with Stud ...
9
votes
4answers
1k views

does Lego make bricks with a stone, brick or concrete block design?

Does Lego make the bricks with a stone, brick or concrete block finish on the sides? I would like to use these for walls and buildings on a train layout. Thanks!
0
votes
0answers
42 views

Interest in a WiFi controller for LEGO trains?

I've built an alpha-version of a WiFi-based controller for LEGO trains. The receiver fits in the cavity typically used by the IR receiver, connects to a PF battery box, and allows for fine-grained ...
-2
votes
0answers
35 views

Packing a 6-by-12 LEGO tile

If you are given the tiles 1*1, 1*2, 2*4, 1*8, 2*8, how many different ways can we place tiles on the afore-mentioned tile. The cover does not have to be complete. For genericity, the target tile can ...
0
votes
1answer
66 views

1998 World Cup limited edition soccer figure

I bought a limited edition World Cup soccer figure in Paris during the games in 1998, #3005. It does not have the shell logo on the package -but does say limited edition on the right lower corner. ...
10
votes
3answers
2k views

How to start with technic?

I have bought myself the technic set 9393 Tractor. I really like the model and I want to dig deeper into the Lego technic universe. I am not focused in building pre-designed models (although I enjoy ...
30
votes
13answers
48k 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 ...
4
votes
6answers
13k views

lego ideas (with traditional bricks)

I would like to find a large catalog of Lego designs/ideas that can be built with "traditional" lego bricks (both normal and duplo). I have found many nice designs in the web, but most of them ...
1
vote
1answer
60 views

Can I download ldraw instructions from Lego Digital Designer?

Can I download ldraw instructions from Lego Digital Designer? Is there a collection of simple examples for my youngsters. I was thinking of: houses, small animals, simple airplane, simple car, tree, ...
1
vote
2answers
62 views

Where can I find LDraw files to download for basic figures?

I would like to have a collection of simple examples for my youngsters. Only for basic LEGO bricks. Not Technics or complex and complete space stations, just some step-by-step instructions for the ...
7
votes
1answer
700 views

Why is my LDD model incomplete after I export it to LDraw?

I have an LDD model that I exported to an LDraw file. When I opened it in LDView, only part of it was displayed. It looks like some parts were not exported properly. Is it normal? Why does it happen? ...

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