Tilted Twister: A Rubik’s cube Solver!!!
Here is a really good example of what you could do with one NXT Retail Set and no other parts or sensors needed. A Rubik’s Cube solver!!! It uses just the retail kit. It seems like a simple design but would be a complex program. The following is some specks on it:
- Scanning the cube: 1 minute
- Calculating a solution: 20 - 40 seconds
- Executing the moves: 1 - 5 minutes. Average 4.5 minutes (60 faceturns)
- Average total time: 6 minutes
Here is his website and a video of it in action.
http://tiltedtwister.com/index.html
(Edit) The Maker has added the LDD File and Program files on his site, so head on over there and build one for yourself.
March 27th, 2008 at 7:15 am
that was amazing! I am very impressed with that!
March 27th, 2008 at 7:26 am
I saw this before and was amazed! I believe that the person who made this, Hans Anderson, used NXC or NBC…not sure which. Just thinking aloud, but his name sounds fishy..
March 27th, 2008 at 3:07 pm
I just looked at it again And before he did not have a downloads page or instructions page, but now he does. it contains the executable files and the ldd so you could build your very own tilted twister it states:
The programs are written in NXC (Not eXactly C) using Bricx Command Center.
I may just have to try this, even though he used a modified rubiks cube.
March 27th, 2008 at 3:12 pm
modified? how?
March 27th, 2008 at 5:18 pm
Probably used some kind of oil toe make it easier to move, and enchance the color so the light sensor could sense the difference, since it senses light, not color.
March 28th, 2008 at 1:39 am
he used replacement stickers to change the colors on the cube so it was more distinguishable
March 29th, 2008 at 6:34 am
Wow! That’s good. And an LDD file too? I will have to build that sometime.
March 31st, 2008 at 7:22 am
My Congratulations go to Hans Anderson who has generously shared with all of us his amazing invention, A very intelligent design using only one retail kit. It is project like that - programming and building that make me want to hide under a rock and reminds me I’m not as bright as i wish i was !!! lol at least now i can copy him and that I’m really good at ! Lego like the internet - a world of cut&paste follow&modify discover&improve (for example learning NXC just enuf to understand how to modify program to use the HiTechnic color sensor thus not having to modify the sticker on the cube)
I shall buy Hans coffee once i get a paypal account going
but for now THANKS HANS
June 11th, 2008 at 11:01 pm
I have built the robot per the LDD file and photos provided. I am having trouble gettng the mechanism to work. Everything operates as intended, but the handling of the cube requires a certain finesse.
The bracket is slightly snug on the cube, which causes it to drag the cube out of the cradle on retraction. Forcing the bracket slightly more open allows the tilt to work FAIRLY reliably, but any slop causes problems with the twist.
This is indeed a very impressive accomplishment, and Hans is very kind to post the full instructions.
I’d be curious to hear from others who have tried to build it.