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Solve a Rubik’s Cube with just one EV3 set

David Gilday has published detailed building and programming instructions for a Rubik’s Cube solving robot that you can create with a single LEGO MINDSTORMS EV3 set. You can find the instructions for MindCub3r (here).

You’ll have to go through quite a few steps to make it work, but it’s probably still a lot easier than solving the cube on your own! BManCan1 has already followed these steps and he created this video:

 
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48 Comments  comments 

48 Responses

  1. Lama-mantis

    That’s an amazing thing! I like the MindCuber, but I can’t find the instructions any more…

  2. barry

    I would love to build one, but I don’t want to flash to the required firmware. Doing so will void my warranty on my new EV3 :-(

    • Tycho van malderghem

      It is a great project I dont want my warantie to be void

      • I think David just wants you to be careful. I’ve updated the firmware many times and I haven’t experienced any problems.

      • Dani

        if Batista can win in a Triple Threat match against Orton and Langston, he’ll get his chnace. From there, Langston pulls the stunning upset against Orton and Batista thwarting Batista’s chnace at a WHC title shot. It can definitely work, it just has to have an appropriate set up. The young lions of WWE deserve a proper passing of the torch.

    • Ben Tristem

      I’m asking if firmware upgrade is REALLY necessary. In a quick experiment I can distinguish Red and Orange by switching to Reflected Light mode when red is detected. If this is the only issue it MAY be possible to go with stock firmware, awaiting Dave’s reply.

      AMAZING job Dave!

  3. fredrikvegar

    hey, I like the robot and I got the building instructions, but I don’t know what kind of program it uses, have you posted it(Mindcub3 program)?
    If not, can you please tell me how to program it.

    Best regards, fredrikvegar.

  4. fredrikvegar

    do you know how to program the EV3 expansion set Remote control, and do you have the EV3 gyro boy program or another balance program?
    best regards, fredrikvegar.

  5. roberts

    All are reedy!

  6. Czarek

    I find it easier to lay the ankle than invent and program of such work.
    Sorry for my english (google translator)

    PS: It is a pity that in addition to the book, The LEGO MINDSTORMS NXT 2.0 Discovery Book “which I have no other is translated into Polish.
    Maybe something will be clear from this comment in English;)

  7. Sanjay

    Hi Laurens,

    I am very keen on this robot.I have already build it but it has some errors. For Example The arm which rotates the cube does not work…..so could you please make a more detailed and clearer version of it?thanks

  8. Sanjay

    Hi again Laurens,

    I’m sorry to trouble you but on my ev3 it keeps on showing ‘RESET TILT’.Can you please tell me what to do?

    • I didn’t design this robot, and I didn’t try this robot, so unfortunately I can’t help you – sorry. Try asking David on the Mindcuber Facebook page :)

  9. Sanjay

    Thanks Lauren

  10. Wee Huat

    Hey people of those that have already built the rubrics cube solver and working fine, I need help regarding it. My rubrics cube solver cannot seem to scan the cube properly and sometimes, the hand and the scanner clashes into each other. I checked multiple times, comparing it and it poses no fault. After doing the files transfer and all those stuff needed, I tried to load MindCub3r programme but it kept telling me reset scan…? Please help, appreciated!

  11. Lama-mantis

    can’t show page… Can you fix that?

  12. joseph bielinski

    I have found that after you download the mindcuber program you have to run the program with the usb still pluged into the ev3 brick and then it will work not pluged in also you will need a fresh set of AA battires

  13. simon

    Who can i find the instructions???

  14. david

    epic i want to use it to amaze my friends

  15. david

    how do I program the robot , I do not get it

  16. GianciEV3

    Dear Laurens Valk i love your buildings, their so great!
    But i have a question; How can i program the PIR Sensor from HI Technic and the Gyro Sensor from Lego Education professionally?
    Im only 12 and i did`nt understand Mindstorms very good.
    Can you help me?
    Thanks,
    Gian Carlo

  17. aryan

    Hi laurens, the instruction manual is not opening on the net.Can you help me with that.

  18. v1n2

    Great project.. i after building the robot yesterday evening, it took me about half an hour to flash the FW, import the sensor and transfer the programs.. the Robot solved my cube without any issue…
    Now i will order the Gyro and try a segway.. :-)

  19. Anton

    we have done the following steps but it just say “find solver” what have i done wrong?

  20. EV3

    Can i also use the v1.03 firmware from Lego?

  21. GianciEV3

    Hi Laurens

    I wanted to download the gyroscope and ultrasonic sensor for lab view, but it doesn`t
    work. It says every time that it can`t open it and now i can`t open it. Can you help me please?

  22. GianciEV3

    *…now i can`t program it…
    sorry

  23. Manav Singh Gadhoke

    Hey I have the ev3 4544 can I build this with it? Thanks in advance!

  24. Kamden Bolhuis

    how do you make it

  25. Dunkthedood

    Hi when I run the program, all it does it fixes the motors then the screen is stuck on “Find solver”. What?? please help!

  26. mitchel harris

    hi,i am having a issue with the mindcub3r when i use the program. on the screen when i start the program, it says “find solver” and the motor to turn the rubiks cube will spin continuously. when i held it still, it then stood still and asked to insert the cube. after i did, it worked exept the colour sensor and arm would collide. how do i fix the program itself?

    thanks,
    Mitchel

  27. vijaya kumar

    dear sir, my mindcuber is not working and on the screen it is showing that it cannot be downloaded so, please reply me fast

    thanking you
    vijaya kumar

  28. Emil

    when I will download the program to my ev3 says
    Unable to compile some documents for deployment:
    ScanCube.ev3p: Use of a block which no longer exists.
    ScanPiece.ev3p: Use of a block which no longer exists.
    ScanFace.ev3p: Use of a block which no longer exists.
    ScanMiddle.ev3p: Use of a block which no longer exists.
    ScanEdge.ev3p: Use of a block which no longer exists.
    ScanCorner.ev3p: Use of a block which no longer exists.
    ScanRGB.ev3p: Use of a block which no longer exists.
    ScanAndSolve.ev3p: Use of a block which no longer exists.
    MindCub3r.ev3p: Use of a block which no longer exists.

  29. Felix Kristall.

    You guy are great, thank you!!!

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