4
votes
1answer
275 views

Can I build UCS Death Star by buying bricks separately?

I'd like to get the UCS Death Star, but it's too expensive :( I got the build manual, and I see what bricks I need. I am thinking of buying them separately via Bricklink. Has anyone tried doing ...
4
votes
2answers
211 views

Can you identify this yellow crane?

Can you identify this one? It's part of a series of models I had as a kid that I want to take apart for my own kids now, and I'm looking for the original instructions.
4
votes
3answers
1k views

In lego mindstorm EV3, can you make the individual programs in a project into functions which can be used in the other programs?

The bit where you program what the robot does using your computer. I'm making a project and I can't fit it all onto the screen, so if you can't do functions, is there any way to zoom out of the screen ...
4
votes
2answers
1k views

Can I change the Bluetooth identifier for an EV3 brick?

I'm coaching a number of FIRST Lego League teams and wish to set up our lab so that each computer could potentially be paired with each brick, but I want to uniquely identify the bricks (EV3-Team1, ...
4
votes
1answer
260 views

Lego Racer kit with Chargeable Cars

I have an old Lego set that I've lost all the documentation on. It's about 10 years old (I see ©2003 in various places). The set built a track and contained two charging stations that integrated into ...
4
votes
1answer
279 views

How many standard 2x4 LEGO elements are produced in a single 2x4 mold injection?

Just how many standard 2x4 LEGO elements are produced from a single mold injection? I realize the molds are used over and over again, but how many bricks does a 2x4 element mold produce at a time?
4
votes
1answer
130 views

What is new about the IR receiver in the 4x4 Crawler 9398?

Reading a review of the 4x4 it seems the IR receiver is different from what is included with the trains. From the review all the information we got was "improved CMOS motor driver with lower power ...
4
votes
2answers
4k views

Programming the NXT brick using an ipad app

for the past few years, I have been using netbooks to program the NXT. I would like to move into the 21st century and use ipads. Is there an ipad app for programming the NXT brick?
4
votes
1answer
2k views

Can you program an RCX using the Mindstorms NXT 2.0 software?

I was asked to teach a robotics class and found several RCX bricks in storage. Can I use these bricks with the Mindstorms NXT 2.0 software? If not, what would be the software I would need to use the ...
4
votes
1answer
184 views

Do LDraw files describe models, bricks, or both?

Sorry if this is kind of a dumb question, but do LDraw files describe models (with translation and rotation values with references to bricks contained in other files), or do they describe the bricks ...
4
votes
1answer
210 views

Why does my RCX programmable brick have no power socket?

My RCX has no power socket, I don't know why. it seems that all RCX 1.0 over #300000 have no power adapters. My ONLY link is Google pictures. why?
4
votes
2answers
92 views

Mindstorms Software Versions

Here is what I have: Site licences for Mindstorms Software 1.0 (NXT) and EV3. An upgrade to Version 2.0 for the NXT 9 NXT kits 4 EV3 kits 2 Renewable Energy Kits and Temperature sensors My ...
4
votes
2answers
300 views

How can I attach a Technic Linear Actuator to a EV3 Medium Motor?

I'm pretty new to serious LEGO building (never got past very blocky houses as a kid but got into Technic a couple of months ago) and need to connect a Technic large linear actuator (61927) to a ...
4
votes
1answer
70 views

Is there a program to tell me if a specific parts list is available in a given colour?

I want to build some models using the new 1x2 curved slopes which come in limited colours at the moment, the models need to have single solid colours if at all possible. Is there a program or site ...
4
votes
1answer
505 views

Dimensions of Mindstorms NXT pieces

I don't have access to my NXT boxes at the moment (they're stuck behind a wardrobe that won't get moved for a week or so) and I'm working on this project where I need to know the dimensions of the ...
4
votes
3answers
248 views

Holonomic robots using Mindstorms

I just got some Rotacaster wheels and want to try building a 3 wheeled Mindstorms omnibot (holonomic robot) and I'm looking for a practical (easy) discussion about writing a driving program. I've ...
4
votes
1answer
118 views

Name of trunk-like objects

What's the name of the black curved elements in the header/banner of https://www.flickr.com/groups/lego_arboretum/? The full picture along with some others of the same diorama can be seen here: ...
4
votes
1answer
170 views

Need help fudging a group in 8039

So, I'm building "8039 Venator-class Republic Attack Cruiser ™ Star Wars TM" and I've hit a snag. I need help fudging the instruction from page 76 of book 1 for that set (see picture below). I'm ...
4
votes
1answer
132 views

Can you identify this model of a yellow truck?

It's part of a series of models I had as a kid that I want to take apart for my own kids now, and I'm looking for the original instructions. Can you identify this one?
4
votes
3answers
230 views

Are all stickers on a sheet used or do you sometimes have spare? Dino HQ set 5887

I built Dino set 5887 recently, but the sticker sheet contains one extra sticker: one of the 'D' things, the pentagram one. One went on one of the walls, the other two round 'D's went on the chopper. ...
4
votes
1answer
214 views

Set to run a program within another program using NXT-G

I'm using NXT-G to program my robot to do few tasks autonomously for so many possibilities. When using C programming, we can call a function from different file into the main program. So, I wonder if ...
4
votes
1answer
482 views

Why did the dark grey color of bricks change? [duplicate]

Possible Duplicate: What is the bley (blay) color? 15 years ago there were 2 shades of grey - light and dark grey bricks. Some years ago, hue of new produced dark grey bricks shifted ...
4
votes
1answer
673 views

How hard is it to convert the new(ish) RC/PF trains to 9V?

I have a HUGE investment in 9V trains (think many thousands of USD) and was wondering how difficult it is to convert the newer RC/PF train systems over to 9V motors? Do the 9V motors fit? Does the ...
4
votes
1answer
47 views

Can I share/download a wishlist on Bricklink?

I have a whole set in a wishlist in Bricklink and I would like to share it with some friends. Can I either: Share the list via Bricklink so they can use it directly. Download it in XML so they can ...
4
votes
1answer
150 views

What was the slot for in the 1950's slotted bricks?

Bricklink has a list of ancient bricks from the 50s that have slots in them. What was the purpose of the slot? Its positioning on various pieces suggests that there was something specific you were ...
4
votes
1answer
450 views

Which is faster: M motor or XL motor?

I understand that the M motor has an adequate amount of speed, and the XL motor is best known for its torque. But is the XL motor really faster than the M motor? Or is it the other way around? I am ...
4
votes
1answer
356 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 ...
4
votes
2answers
422 views

Is there a microphone that works with Mindstorms EV3?

I'm planning to program my EV3 robot to do voice chat over VOIP using ev3dev and a Debian program. Is this possible? Are there microphones known to work with EV3, and has anyone had experience using ...
4
votes
1answer
377 views

Why are official LEGO PDF instruction books such poor quality?

More often than not, my boys are working from PDF instructions downloaded at the LEGO site. The quality of those PDFs is poor. I'm sure you've experienced the jagged, pixelated lines and the bricks so ...
4
votes
1answer
768 views

Virtual LEGO / Technics / Mindstorms simulation environments

I know that there are quite a few LEGO CADs floating around, but are there any physically correct simulation environments for models built with LEGO / Technic / Mindstorms parts, that would, for ...
4
votes
1answer
221 views

On what plane is 7292 Propellor Adventures based?

The set 7292, Propeller Adventures, features a twin engine airplane. It looks a bit like the de Havilland Mosquito, but not quite. On what plane, if any, is it based?
4
votes
1answer
1k views

On Lego Mindstorms EV3, is there a way to change the input parameters of a My Block?

I am writing a program for which I did a My Block. I later realize that I need to add a new input parameter and I can't find a way of doing this without creating a new My Block. This seems it should ...
4
votes
1answer
253 views

Are there any components compatible with EV3 that are more powerful and durable?

Are there components compatible with EV3 like motors, sensors, brackets, other details that I can easily connect to an existing EV3 main block and build something to do real-life tasks? Like ...
4
votes
1answer
731 views

Has Lego Box 5508 been discontinued?

The Lego Deluxe Box 5508 seems to be out of stock everywhere in the UK. I was hoping to get this set for my kids for Christmas, but it is nowhere to be found. Has it been discontinued? Or do they ...
4
votes
2answers
219 views

Lego MOC joining query

I have a building query. As you see the picture (attached). I really don't know how the creator can attach the "3829c01" steering wheel to the "4070". I try so many rod like parts can't get through ...
4
votes
1answer
834 views

Where to find older sets (eg. Classic Space)?

Can people share their experiences on how they locate older sets? Have you had luck with flea markets, garage sales, thrift stores, etc.? Or is everything done through eBay and BrickLink? Any comments ...
4
votes
1answer
3k views

How do I update my NXT firmware using EV3 software

The new EV3 software tells me to update my firmware on the NXT. When I go to the tools menu and select update firmware it tells me the NXT brick can not support this function.
4
votes
2answers
362 views

Technique for multifacteted roof without 3049

I'm working on a project with a fairly complex roof in Dark Bley. In many areas, it seems to be necessary to use part 3049: Unfortunately, this part doesn't appear to have ever been released in ...
4
votes
1answer
214 views

Why do basic brick boxes tend not to include many gray bricks?

Here are some examples of current basic brick boxes: 5749 6177 4625 4626 Of those, only 5749 has a significant number of gray bricks, and it still includes much less gray than black, blue, green, ...
4
votes
1answer
235 views

How can I make a mosaic from a given number of 1x1 bricks and a picture?

This question is similar to How can I convert an image's pixels to actual LEGO colors? except that I need to fit a certain number of bricks of a certain colour. For example, I have 20 white, 28 ...
4
votes
1answer
536 views

Serial tower stopped communicating with RCX 1.0

I recently bought a RIS 1.5 with brick 1.0 and serial tower (no CD). I got a cheap USB adapter and installed the RIS 2.0. It worked almost fine for a few days. Everytime I started RIS I had to ...
4
votes
1answer
185 views

Mindstorms NXT Bluetooth Slow Connecting

I have just bought a NXT 2.0 and have installed the software on my laptop, and after some trouble getting it to connect I now have it connected any working using bluetooth. However it takes an age to ...
4
votes
1answer
596 views

How many themes have been released by LEGO?

I would like to know the various themes, current & discontinued, that LEGO has released in brick/element form.
4
votes
1answer
245 views

Is it possible to use Bluetooth to connect two EV3 bricks using RobotC?

For example to send a numeric value from one to the other?
4
votes
1answer
160 views

Are coloured bricks used by Set Designers recycled to make black bricks?

I heard on a podcast of the Adam Savage Project that the master builders (designers of 'sets' of LEGO) are allowed to use as many blocks as they need to design a certain set. All of the bricks they ...
4
votes
1answer
81 views

What are the curve radii for the curved slope pieces?

Does anyone have a table with the curve radii for the curved slope pieces? If not, does anyone have a good idea for measuring a third point on the curve? Since I know the front and the back ...
4
votes
1answer
195 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.
4
votes
1answer
125 views

In LEGO mindstorms NXT programming: is it possible to download a file from a robot onto the computer?

I've lost the file for a project, but the robot still has it, and I'm wondering if it is possible to transfer the file onto my computer from the robot, and continue to work on it. How would you do ...
4
votes
1answer
203 views

Can anyone explain the transformation information within a Lego Digital Designer LXF file?

I've been taking a look at the structure of the LDD files recently to see if it's feasible to create a plugin for 3D studio max that allows you to directly open LXF files for higher quality ...
4
votes
1answer
547 views

Is there a way to program the EV3 brick with NXC?

I tried to program the EV3 brick with NXC so i used BricxCC. The download of the program to the EV3 was successful but when i tried to start the program (which actually didn't show up on the program ...

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