MindCuber - build your own LEGO Rubik's Cube solver

[IAssemble]

hey IAssemble,

My name is Elias, and I'm working on my thesis. It's about the Rubik's Cube
And I was thinking to make a robot that can solve the cube. I saw your design and I made it, but now I want to program it.
The only problem is that the .rxe file (the code) is rather complicated. Do you maybe have a version with more information. I am not so best in C++ or NQC.
Or can you maybe help me program my own version.

Sorry for the English, I live in Belguim.

Thanks anyway
Elias

I'm not quite sure that I understand exactly what you are asking...

You have built MindCuber and now want to program it?

MindCuber.rxe is a pre-compiled executable program that can be downloaded to the NXT using the LEGO MINDSTORMS NXT software - see the instructions in the README.txt file in the .zip archive that contains the .rxe

This is enough to make your MindCuber work.

Alternatively, if you want to modify the code or perhaps use the algorithm for your own design, I hope to publish the source code (which I wrote using NXC) for a slightly later version of the software in a couple of weeks on http://mindcuber.com

I hope this helps.
David

[EJi]

Hey David,

Thanks for your reply, and maybe I wasn't clear enough in my last post.
Well, I'm 18 and my thesis is about Rubik's cubes. In my last trimester/semester I want to program a robot that could solve the Rubik's cube.
So I thought I make a Lego robot that was already made/schematized so the only thing that was left for me to do is to program it.
I've built the MindCuber and I've put your software on it so that's not the problem.

I want to program it but I need some help... and not only for the algorithms. I thought looking at your code was enough to help me create my own program. But now i read your code isn't published and I would like to program it this week. Or at least know I can program it. So can you help me with programming?
If you want to discuss this on e-mail or maybe skype, let me know.

greetings,
Elias

[rceditor]

I just built the mindcuber from a Lego Education NXT set for a magazine project. The education set did not come with the color sensor so i purchased a Hi Technic one. I downloaded the software to the brick and when I start it I get a message that says "Remove Cube...." and it will not go away no matter what I do. Does this have to do with the color sensor? Or is it the ultrasonic sensor that detects this? I am stuck with this project. I've tried everything.

I hope someone can help

Thanks

[IAssemble]

I just built the mindcuber from a Lego Education NXT set for a magazine project. The education set did not come with the color sensor so i purchased a Hi Technic one. I downloaded the software to the brick and when I start it I get a message that says "Remove Cube...." and it will not go away no matter what I do. Does this have to do with the color sensor? Or is it the ultrasonic sensor that detects this? I am stuck with this project. I've tried everything.

I hope someone can help

Thanks

Thanks for building MindCuber. I assume when you said you used the Education NXT set that you also obtained extra parts to build it mechanically exactly as the shown in the build instructions?

The released executable mindcuber.rxe only supports the LEGO color sensor (i.e. not the original monochrome LEGO light sensor or either of the HiTechnic color sensors).

The message about removing the cube is the result of whether the software detects the presence/absence of the cube via the ultrasonic sensor. Please make sure the ultrasonic sensor is connected to the port shown in the build instructions. (However, I wonder if the software might be confused by trying to communicate with the HiTechnic sensor when it expects a LEGO color sensor...)

Please feel free to send direct messages to me via my YouTube channel http://youtube.com/IAssemble or leave comments on the original MindCuber video and I will try to help further.

Thanks
David

[Gareth]

Hi David,

Just started a school holiday project with my daughter to build a MindCuber and hopefully a design of her own. I am very interested in the source code to look at so I can help her. Is it possible that you will publish the code on your website in the next few days or perhaps be able to send me a copy.

Thanks,
Gareth

[IAssemble]

Hi David,

Just started a school holiday project with my daughter to build a MindCuber and hopefully a design of her own. I am very interested in the source code to look at so I can help her. Is it possible that you will publish the code on your website in the next few days or perhaps be able to send me a copy.

Thanks,
Gareth

Thanks for your interest. I am still trying to make time to make the source code fit for distribution and have replied to your private message to discuss this further.

David

[CubeRoots]

how much does this cost in total? I want one for speedcubing society

[IAssemble]

how much does this cost in total? I want one for speedcubing society

It can be built from a single LEGO MINDSTORMS NXT 2.0 kit - see http://shop.lego.com/en-GB/LEGO-MINDSTORMS-NXT-2-0-8547

I suspect if you shop around online you can find it cheaper than the LEGO Shop.

[Corky]

Help please. I am 78 and have just built the Mindcuber. I don't know how to post a question here but here is the problem.
A couple of times it turned the cube over and scan alright but then said sacan error. Now it just scans once and stops.Red light keeps
flashing and on the nxt brick it just shows a titleMindcuber.com by David Gilday.
Have deleted and downloaded mindcuber.rxe to the brick 3 times. No help. tried 2 diffrent cubes . no help.
HELP what is wrong ?

[IAssemble]

Help please. I am 78 and have just built the Mindcuber. I don't know how to post a question here but here is the problem.
A couple of times it turned the cube over and scan alright but then said sacan error. Now it just scans once and stops.Red light keeps
flashing and on the nxt brick it just shows a titleMindcuber.com by David Gilday.
Have deleted and downloaded mindcuber.rxe to the brick 3 times. No help. tried 2 diffrent cubes . no help.
HELP what is wrong ?

Thanks for building MindCuber. Sorry you're having problems. I'll do my best to help. I have sent a private message with a couple of questions to try to work out what is the problem.