How to build MindCuber for LEGO MINDSTORMS NXT 2.0

Building instructions for LEGO MINDSTORMS NXT 2.0 are available as a bonus model on the LEGO MINDSTORMS website

Download instructions and latest software: (right click and "Save link as...")

Building instructions: MindCuberRubikCubeSolver_PDF.pdf
Executable program: MindCuber.rxe v2.0
Source code is available here

Version v2.0 of the program has a number of enhancements over the original version published for the NXT 2.0 on the LEGO MINDSTORMS site:

distinguishes between scan error and impossible to solve cube
color sensor calibration data is saved to file on the NXT and reloaded whenever the program is run
red/orange discrimination is improved
motor control is improved to remove pauses

1. Software

The software for MindCuber is provided as an executable software file that you can download to the NXT brick using the standard LEGO MINDSTORMS NXT 2.0 software by following these steps:

Select “Remote Control” from the “Tools” menu to open the “Remote Control” dialog
Select “Connections” from the “Remote Control” dialog to open the connection dialog
Scan for your NXT and connect via USB or Bluetooth in the usual way
Select the “Memory” tab in the connection dialog
Select “Download” from the “Memory” tab and use the file dialog to select the MindCuber.rxe file to download to the NXT

MindCuber is now ready to go!

This video shows a slightly different method that works with older versions of the LEGO MINDSTORMS NXT software:

2. Troubleshooting Tips

Click here for MindCuber troubleshooting tips.

Like MindCuber on Facebook to share your experiences and help each other with troubleshooting.

See more LEGO robot Rubik's Cube solvers at youtube.com/IAssemble and youtube.com/ARMflix

LEGO and MINDSTORMS are trademarks of the LEGO Group
Rubik's Cube is a trademark of Seven Towns Limited

Disclaimer: thoughts and opinions expressed here are my own