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Lego NXT Bot Beats Rubik's Cube Record

Unknown Lamer posted more than 2 years ago | from the robots-do-it-better dept.

Robotics 50

kkleiner writes "The current official human record for the Rubik's cube 3×3×3 puzzle is just 5.66 seconds. Now a robot called CubeStormer II did it in just 5.35 seconds. CubeStormer II is controlled by four Lego NXT 'bricks' that communicate via Bluetooth with a Samsung Galaxy SII smart phone. A special app on the phone takes a picture of the cube, solves the puzzle virtually, and then relays the solution to the Lego robot. From click to finish the whole process takes just seconds."

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50 comments

Now this... (3, Insightful)

ackthpt (218170) | more than 2 years ago | (#37763410)

This is what you call a Hack

Is anyone in the medi-uh listening?

Re:Now this... (0)

Anonymous Coward | more than 2 years ago | (#37763660)

You're a hack.

Re:Now this... (0)

Anonymous Coward | more than 2 years ago | (#37765094)

Your FACE is a hack.

Re:Now this... (0)

Anonymous Coward | more than 2 years ago | (#37763824)

http://en.wikipedia.org/wiki/Semantic_change

(I actually agree with your sentiment, but your farts can't compete with thunder. Someone has to say it.)

Re:Now this... (0)

Anonymous Coward | more than 2 years ago | (#37763882)

Your expecting a response from the Presstitutes?

Re:Now this... (1)

FunkyELF (609131) | more than 2 years ago | (#37764352)

I thought this was the sort of things that Lego Mindstorms was supposed to do. Using something for its intended purpose is the exact opposite of a hack.

I for one... (3, Funny)

wisebabo (638845) | more than 2 years ago | (#37763462)

... would like to congratulate our new Rubik's cube solving Lego overlords!

(That's the first time I've ever had a chance to post that, does that mean this meme is dead dead dead?)

Re:I for one... (0)

Anonymous Coward | more than 2 years ago | (#37763774)

>does that mean this meme is dead dead dead

I, for one, welcome our new meme-destroying overlords.

Wow (1)

The Joe Kewl (532609) | more than 2 years ago | (#37763480)

Nothing short of amazing...
I guess I will have to stick with making non-robotic LEGO models

Re:Wow (0)

Anonymous Coward | more than 2 years ago | (#37763930)

I'm actually not impressed.

A human does it about .30 seconds slower than a ROBOT. If the robot did it in 2 seconds or less then I'd be amazed.

Re:Wow (2)

pepeperes (731972) | more than 2 years ago | (#37764340)

It's a LEGO brick robot, ffs! I guess no one at the real robotic industry has decided to invest in a Rubik cube solver robot. The robot's speed surely could be improved a lot using the "right" technology!

Re:Wow (0)

Anonymous Coward | more than 2 years ago | (#37766848)

> It's a LEGO brick robot, ffs

That's no excuse. If the motor has 100 rpm, just attach it to another 100 rpm motor and you have a combined speed of 200 rpm.

3x3? (1)

RockClimbingFool (692426) | more than 2 years ago | (#37763552)

Shouldn't that be 3x3x3? Or has someone has invented the two dimensional Rubik's cube?

Re:3x3? (0)

Anonymous Coward | more than 2 years ago | (#37763570)

hurp. it's a rubik's CUBE and each side is 3x3.

Re:3x3? (1)

jginspace (678908) | more than 2 years ago | (#37763600)

Each FACE is 3x3?

Re:3x3? (0)

Anonymous Coward | more than 2 years ago | (#37763652)

Actually if it's a cube, we can assume that all dimensions are the same. I propose a Cube 3.

Re:3x3? (0)

Anonymous Coward | more than 2 years ago | (#37763596)

No wonder it solved it so fast!

Re:3x3? (0)

Anonymous Coward | more than 2 years ago | (#37764102)

Shit they come in cubes too?! I can't believe all the time I've wasted solving Rubik's squares!

Re:3x3? (0)

Anonymous Coward | more than 2 years ago | (#37764970)

Solving a Rubik's Square is about as far as I can get.

Inspection time... (0)

Anonymous Coward | more than 2 years ago | (#37763556)

I always thought a 15-second "cube inspection time" was kind of a cheat!

So, I take the statement that someone "solved" Rubik's cube in "5.66 seconds" with a grain of graphite.

But some people are OK with that nonsense: http://worldcubeassociation.org/regulations/#speedsolving

Re:Inspection time... (1)

jank1887 (815982) | more than 2 years ago | (#37763792)

well, to be fair, in the posted video it didn't take 15 seconds for inspection. assuming the first shot is taken after the clamps go down (~0:12) it presents the solved cube at about 0:18. So, est. 6 seconds including inspection. not too shabby.

Video link (0)

Anonymous Coward | more than 2 years ago | (#37763796)

http://www.youtube.com/watch?v=_d0LfkIut2M

It's not just that this Lego NXT bot can solve it. (5, Funny)

otaku244 (1804244) | more than 2 years ago | (#37763920)

... it's that it looks so damn cool doing it!!!
It looks like some sort of contraption you'd find in a Sci-fi movie.

Question (1)

mjr167 (2477430) | more than 2 years ago | (#37764152)

Why does the screen on the phone go black at about 14 seconds into the video?

Re:Question (2)

mystik (38627) | more than 2 years ago | (#37764214)

I wondered the same thing -- I think it's because it's switching the video mode from 'regular' graphics to show the camera capture, to '3d' mode to show the opengl rendered cube based on the capture data.

Re:Question (0)

Anonymous Coward | more than 2 years ago | (#37764218)

probably to save battery. They set their screen timeout to be fast.

Re:Question (1)

eison (56778) | more than 2 years ago | (#37765580)

It's shutting off the camera. Switching camera on/off has a slight visual delay.

The human race (1)

Brad1138 (590148) | more than 2 years ago | (#37764460)

Less needed day by day....

Re:The human race (0)

Anonymous Coward | more than 2 years ago | (#37765164)

Yes, now that we've automated the vital but onerous manual labor of Rubik's Cube solving.
But think about all those human Rubik's Cube solvers that will lose their jobs!

Awesome, but not apples-to-apples (0)

Anonymous Coward | more than 2 years ago | (#37764722)

This is really cool, but it's not a fair comparison to a human. Human trials are performed using timer mats. That is, the human has to pick up the cube, manipulate it and return it to the mat in order to stop the timer. Since this lego device cannot perform those manipulations, it's not doing the same task. Surely, the pickup and putdown add a few tenths of a second to the human time.

Re:Awesome, but not apples-to-apples (2)

djmurdoch (306849) | more than 2 years ago | (#37765368)

The humans are also allowed to study the cube before their time starts; the time for the robot included the time for the virtual solution.

fapturbo (0)

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Re:fapturbo (0)

Anonymous Coward | more than 2 years ago | (#37765838)

"Work from home" spam with a domain name that starts with "fap"? Sign me up!

Different Values of Random (0)

Anonymous Coward | more than 2 years ago | (#37767338)

I don't like rubiks cube world records because the speed you can solve a cube with any given method often depends on the initial configuration. If you are going to compare two solvers head to head you had better start them with an identical configuration, or the results are tainted by the possibility that one cube was 'easier' than another. Granted, 5.6 seconds is pretty damn impressive for any reasonably random cube, but I have a hard time convincing myself he could do that consistently with different cubes.

Not quite... (0)

Anonymous Coward | more than 2 years ago | (#37767428)

In defense of man-kind, we actually have to pick up the cube from a table, solve it, then put it back down. So if we could start with the cube in our hands as soon as the clock went off, I bet we could finish a lot faster too.

Why four? (1)

Pence128 (1389345) | more than 2 years ago | (#37814806)

Why does it need 4 NXT bricks? Do they not have enough I/O? Maybe there's a market for an NXT port expander.
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