Questions tagged [software]

Questions about software related to planning models or programming LEGO robots.

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1 vote
0 answers
74 views

Cat D11 LEGO set won't start the calibration process

As soon as I start the calibration process in the app, the gearbox jams. It doesn’t do anything, just clicks and clicks (stripping the gears). Any ideas what the cause might be?
1 vote
0 answers
57 views

42131 Bulldozer Testing [duplicate]

Got to the testing page and everything is working correctly except the left track is going in the opposite direction to the app animation. Should I start again?
2 votes
1 answer
151 views

software to record my own bank of LEGO pieces?

Is there any PC software that can keep track of my own pieces? I know sites like Rebrickable and BrickLink are probably good enough, but they require VPN to access in China. Studio can build LEGO ...
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1 vote
0 answers
38 views

2 Questions, 1: LDD V4.3.12 not connecting to internet 2: I can't find any EV3 electric parts [duplicate]

(I'm new to LDD) Hi, I'm trying to use LDD for designing a robot for my Lego Robotics Class. It's just whenever I launch LDD, it just keeps saying that I'm not connected to internet and asking if I ...
2 votes
3 answers
297 views

"Heads up! Could not open project" error message when opening project

When I try to open my project it gives me error saying "Heads up! Could not open project". Could you please help me? Let me know if you want me to share the file. We were working on that ...
1 vote
1 answer
129 views

Blender has "weight" but not the part itself?

New to Blender, I downloaded it to look for some parts that aren't available on Studio. I saw one part, 54937, listed in Peeron and LIC. I also looked on LDraw. For my download, I found part 54937 in ...
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7 votes
2 answers
4k views

Lego Boost app won't connect. What are my options?

So far, on three devices (Amazon Fire tab, Galaxy tab S2, Galaxy Phone S9), the following when trying to connect to the move hub from the Boost app: all three permissions (Bluetooth, microphone, ...
  • 173
0 votes
1 answer
74 views

EV3G Where can I find the .vix file for the low-level functions? (Set integer, IO operations, start block)

They look like this: By default, when you refer to a vix file, it looks like this: <Reference Type="VILib" Name="TerminalTerminal.vix" /> But, to refer to these low-level ...
  • 131
5 votes
1 answer
759 views

What version of Lego Digital Designer has all the parts that LEGO ever added?

I would like to know what version of Lego Digital Designer has all the parts that the Lego company has ever added to the program, before the program was discontinued. I was able to find more parts ...
6 votes
1 answer
839 views

Control Lego Technic Control+ Hub via Python

Is it possible to control the Lego Technic Control+ Hub with Python? I have tried using Pybricks but that didn't work well for me.
5 votes
1 answer
493 views

What are the differences between Studio 2 and LDcad when working with Technic and EV3?

Information regarding different software has come up over the years, but I am looking for something current. My goal is to create instruction books for some of my designs. Previously I used LDD, which ...
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4 votes
0 answers
45 views

How do I sync audio and movement on my NXT 2.0?

How do I sync audio and movement with my NXT 2.0? I'm building an animatronic head and I can't find a good way to sync it with external audio because the internal speaker is too quiet.
5 votes
2 answers
293 views

Export an object from Blender to LDraw

I have modeled a custom part in Blender and I would like to get it into LDraw format for use in LDCad and LPub3D. I don't know much about 3D formats, but Blender can export collada, alembic, fbx, gltf ...
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2 votes
1 answer
652 views

Am I able to use the Chrome version of the Mindstorm software on a Windows/Mac laptop?

We currently teach Lego robots as part of our Technology curriculum, but we are 1-to-1 in a BYOD environment. So we have all different types of devices the students use including Chromebooks, Windows ...
7 votes
0 answers
234 views

Digital tool for roller coaster physics

I'm currently working on a roller coaster MOC with a looping. I started physically building the MOC but quickly recognised that it is quite a mess to build something, tear it down rebuild it, etc. ...
  • 549
4 votes
0 answers
151 views

Migrate Lego Boost Android app data to another device

I have a Lego Boost Android application installed on device #1 and the app is logged into my LEGO cloud account (the same used for Lego Life etc. too) and is fully synced with cloud. On this device I ...
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4 votes
2 answers
362 views

What 3D modelling services could I use to create custom LEGO pieces?

I want to create some custom LEGO Technic pieces, but I can't seem to find any software that is good at making it. I have tried using Blender, but it is hard to create holes. Do you have any ...
4 votes
2 answers
1k views

Where do I find the program to go with the LEGO 51515?

I got a LEGO Mindstorms 51515, and I have finished building my 1st robot, and now would like to program it. However, I cannot find any companion program to use. Where can I install the companion ...
5 votes
0 answers
47 views

RCX 2.0 usb ir tower. Easiest path to start [duplicate]

I picked up a working set recently and I would like to know the easiest path to get going. I have several old and new PCs and win 98, xp, 7 (32bit) and 10 available. The kit has no CD. I have LabView ...
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3 votes
1 answer
421 views

Why isn't the Sad Clown's torso in Stud.io?

I was working on designing a clown minifig and I found the 973pb1398c01 Torso 3 Black Pom Poms Pattern / White Arms / Black Hands that seemed perfect for it, but it turns out that it isn't in Stud.io. ...
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6 votes
1 answer
247 views

LEGO Dacta Intelligent House

I obtained an LEGO Dacta 9707 Intelligent House set plus the Interface B: By searching on BrickLink for the set, I found out that there was an Activity Pack for use with Control Lab software. If ...
7 votes
3 answers
2k views

How do I erase all old programs using the new scratch type Education software?

I have 24 Lego Mindstorms EV3 bricks that have old programs and the bricks are named. I want to erase them so they can be used for new students. In the older Mindstorms software I would just reinstall ...
0 votes
1 answer
750 views

LDD Update Date? [duplicate]

I was wondering the other day - When was LDD last updated and when, if ever, are they (TLG) planning to do another piece update?
10 votes
1 answer
230 views

Do I really need to sign into Stud.io?

I recently installed Stud.io 2.0 on my MacBook. Is it absolutely necessary to sign in, or is that just so that you can save to the cloud and build with friends?
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1 vote
1 answer
2k views

NXT software on Windows 10 isn't detecting NXT brick

I have the Mindstorms NXT software and brick (CPU), and I worked with them a long time ago running NXT on a Windows XP. Now, I would like to retrieve the brick to teach my son, and I installed the NXT ...
5 votes
0 answers
71 views

Connectivity graph for a digital model

I'm looking for a way to take a digital representation of a model (e.g. an LDD or LDraw file) and extract from it a representation of the model that describes which pieces are actually connected to ...
1 vote
1 answer
2k views

How do I remove programs from my Lego Mindstorms EV3 project?

The title says it all. But to be more specific, I find it annoying that I have to download one single program to the EV3 Brick but then all the others in the project end up in the brick too, therefore ...
0 votes
0 answers
189 views

Given program for EV3 Race Car doesn't work, but why?

I have successfully built an EV3 Race Car with instructions from a fan-made book made by Laurens Valk. In the book, he tells how to make my blocks for the rack-and-pinion steering and how to make a ...
2 votes
0 answers
200 views

Lego Mindstorms Software: "Error code: 4"

After updating my EV3 Brick's firmware from V1.09E to V1.10E and reinstalling the Teacher Edition of the Lego Mindstorms EV3 software (even though I'm not a teacher), I decided to recover my Brick's ...
1 vote
0 answers
660 views

Bluetooth connection between EV3 brick and MacBook Pro fails after 2 seconds

As I was adviced, I searched for same questions before posting mine but although some are similar, I can't make their answer useful for my problem. I have a Mindstorms EV3 Education brick and a ...
2 votes
1 answer
6k views

Current LEGO Digital Designer download is missing a lot of parts [duplicate]

The current LDD download is missing a lot of bricks that were in version 1.3.11 before. Such as, but not limited to: EV3 motors, sensors and the main EV3 brick. Does anyone have a solution/download ...
1 vote
1 answer
803 views

How can I upload .ev3 files to my brick under macOS Catalina

After updating my Mac to macOS Catalina I can no longer run the previous Mindstorms software. The new tool "Mindstorms Home" doesn't allow for opening .ev3 files and uploading them to the brick. Does ...
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3 votes
1 answer
179 views

Schematic and program listing of 28743?

Looking for more info on circuit board of 28743. E.g. what is the processor used? Would like to be able to reprogram the chip. E.g. program the train to stop on the third STOP directive strip, or ...
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4 votes
1 answer
239 views

Can I use Microsoft Makecode to programme Lego NXT bricks?

As a teacher, I only have access to Chromebooks and I cannot (IT will not let me) use Linux on them. I'm trying to use a text-based coding language to programme NXTs. I would use ROBOTC, but I cannot ...
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10 votes
2 answers
377 views

Is it possible to use EV3 MicroPython with Windows 7?

I have been trying to get python on my EV3 brick using an EV3 MicroPython SD card image as described on the Lego website. The EV3 brick seem fine with its new OS. Instead my problems are at the ...
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1 vote
0 answers
119 views

Could Microsoft MakeCode be an alternative to the EV3 program?

Is it possible to use Microsoft MakeCode for the EV3 as an alternative to the widely used EV3 program by LEGO? What are the benefits and drawbacks?
6 votes
3 answers
6k views

What kind of software can I use to design LEGO MOCs?

What kind of software can I use to design LEGO MOCs? I hear the LDD is not so good to use so is there alternative software I can use?
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0 votes
1 answer
158 views

Where do I get PDF instructions for LEGO builds that were only in software, like NXT as of 2019?

LEGO Mindstorms NXT 2.0 (8547) stored almost all of its build instructions in the associated software. LEGO no longer supports the software for modern macOS versions. I can not find build instructions ...
8 votes
3 answers
4k views

Does LEGO no longer support NXT 2.0 at all?

I am running Mac OS X 10.15 (Catalina) and the EV3 software can't detect my NXT 2.0 using USB.
1 vote
0 answers
131 views

How to import file to Mindstorm Programmer?

I got a Mindstorm set a year ago and I stumbled across a build which looked really cool! I finished the building part then I downloaded the program file but I couldn’t import it. I have a MacBook ...
2 votes
1 answer
724 views

Coloring Multiple Bricks in LEGO Digital Draw

I made the mistake of not coloring as I went while building a large object in LEGO Digital Designer. I don't want to spend hours coloring each individual brick. Is there a way I can box select the ...
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7 votes
2 answers
12k views

EV3-specific bricks missing from Lego Digital Designer 4.3.11 (Win)?

I have LDD on my Mac and have used it to create EV3 models (like an FLL robot, or a Lego dot-matrix printer). Recently, I purchased a cheap Windows laptop for use by a FLL team. After twice ...
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2 votes
2 answers
14k views

LEGO Digital Designer does not to connect to the Internet on Win10 laptop

I just installed on a MSI laptop running Windows 10 Ver. 1803 with a gigabyte internet connection (960mps upload 950mps download). Every time I start up the application, it immediately displays a ...
4 votes
1 answer
2k views

How to make an object glow in Studio (BrickLink)

Is there a way to add glow colors to objects or parts in the BrickLink's Studio? The thing I am trying to do is to make a glowing light bulb so I can have it as a light source in enclosed areas (Like ...
4 votes
1 answer
129 views

Is there a software which finds alternate models for owned sets?

I know for example the catalog of BrickLink and now I wonder if there is a software which can calculate from the inventory lists which other models one can build with an owned set? To more detail: If ...
4 votes
1 answer
3k views

Can video files created using the LEGO Movie Maker app be accessed directly?

I recently created a video with my son using the LEGO Movie Maker app. I couldn't find a way to export the raw video files out of the app. Is this possible?
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2 votes
1 answer
90 views

Submodel does not show properly in LPub3D

I am new to digital LEGO models and building instructions with LPub3D. In order to find my way around submodels I have created this very simple dummy ldraw model: 0 FILE new model.ldr 0 Name: new ...
2 votes
1 answer
681 views

How to include submodel into main model in LeoCAD?

In LeoCAD I can create multiple submodels. But how do I merge them or integrate one into the other? The release notes suggest that this is possible, but I can't seem to find out or find resources ...
2 votes
1 answer
307 views

Where's the iNXTG app for programming NXT from iPad?

I'm trying to find the old iNXTG to program NXT bricks via iPad but it is no longer available in the Apple Store. Does anyone know if there exists an archive for programs like that? The problem is ...
2 votes
2 answers
333 views

Is there a Ubuntu Linux LEGO instruction manual creator?

Is there a good LEGO instructions manual creator for Ubuntu? I can't seem to find one. Also, are there any online ones?