| Build your own Rubik's Cube solver from just a LEGO MINDSTORMS NXT 2.0 set. MindCuber is available as a bonus model on the LEGO MINDSTORMS website. mindstorms.lego.com Software source code will be available in the near future at mindcuber.com MindCuber is believed to be the fastest, completely autonomous, LEGO robot to solve the well known Rubik's Cube puzzle. Total solve time, including the scan, averages around 1 min 55 secs for the version shown in this video although the published version averages around 2 min 30 secs. MindCuber's unique mechanical design allows the cube to be manipulated quickly and reliably using only two motors allowing the third motor to be used to move the colour sensor during the scan. The software for the solver runs on the ARM7 microprocessor in the NXT "Intelligent Brick" using the LEGO colour light sensor to scan the cube. The ultrasonic sensor is used to detect when the cube is inserted to start the solve automatically. MindCuber uses a table-driven solving algorithm that was developed to fit in the limited memory of the NXT while generating reasonably short solutions of around 30 to 40 moves. MindCuber can also be seen solving a Void Cube at www.youtube.com A version of MindCuber that can be built from the original LEGO MINDSTORMS NXT kit (8527 Orange box) and an additional color sensor can be seen at: www.youtube.com Other LEGO solvers can be seen on www.youtube.com and on www.youtube.com Mike Dobson (Oscarworld), with whom I jointly ... |
