The StringThing uses one motor to spin a string. That’s it. Oh right: it spins it in a sine wave. Cool, huh?

Here is a really cool Bobcat that i found on you tube, it uses Lego pneumatics to control the lift and tip of the bucket. This is a really good example of how one can combine pneumatics and the NXT together. I wish there were more information on it so that it would be easier to replicate, or make improvements.

Well even though this is not an NXT Creation I think it is still awesome. As most of you know NXTLiftBoy has made several really cool creations. You can check them out over at MOCpages Here.

Here is what he has to say about it:

The ChainRider is a trike featuring two huge wheels, remote control, and, i dare say, excellent drive properties. It is made entirely from a single LEGO set 8275, but appears to be much more fun in playing than the bulldozer!

For more information and building instructions see: http://www.mocpages.com/moc.php/54200

I challenge anyone to try to make a similar version of this with an NXT at the control.

This is my first entry for the Earth Day Building Challenge: The NeXT Bus! It is one of the first robotic public buses, and possibly the first made out of LEGO.
So here is how it helps the Earth:
This bus uses the same amount of energy as a TriBot, right? Well, maybe a little more, but about the same. So what’s the point? I’ll tell you. This bus easily carries 8 minifigs, but these minifigures are traveling alone, so if they weren’t on this bus, they’d be in 8 different cars! So with this bus, you would be using approximately 1/8 of the energy that would have been used.
Admittedly it doesn’t look much like a real bus, but at least it is functional! It has rack-and-pinion steering like a real bus, windows etc.

Here is a pretty cool project that Sascha from Germany Sent me.

Here is the information from Sascha:

“This is the Lego NXT “4 In A Row” robot project.
This robot is able to play against you on itself.
He is independend of any computer, so the program - programmed with NXC - is running on the NXT brick.
The human player can choose the row while pushing the touch sensor as often as the row’s number. The computer decides on its own, which row would be the best for it.
This KI is working mainly on the MINIMAX algorithm. However the computer is not as hard as i want him to be, because of the less NXT Brick speed.
the algorithm works like that: The computer simulates the next 3 possible steps and gives any game situation a specific number of points. The Row with the most points will be the next computers choice.
The robot uses three NXT motors:
- one is moving the gameboard
- the second fixes the stones
- the third opens the gate”

This is a LEGO monorail I made that ferries Storm troopers over the ravine between… um … stoolistan and chairville. Hope you like it. The stop motion isn’t that great, but that might be because of my lack of any animation software. Still, I think it’s good! The music is by my friend Ben and his dad Mark.

-NXTMonger

Hi guys, I’m a new contributor and for my first post I’m going to post my latest project, “Lonesome George”. It’s named after a turtle on the Galapagos Islands. Lonesome George drives (not walks) forwards and backwards (but it doesn’t turn). Its shell is made of cardboard but it’s still entirely LEGO because the box is made by LEGO! When it sees something it will go into its shell and pull the ultrasonic sensor down.

I will post a program and LDD file soon.

Mini_Man176

Here is a great robot that my best friend Ben made, called the Netch-a-sketch. Well actually it’s the program that’s cool. As you may have guessed from the name, it is an NXT based etch-a-sketch. If you want to see it in action, download the program(Right Click and Save as to Download) I’d have included a video, but unfortunately you can’t take Screencasts with the NXT

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.

This robot can type “NXT” on a MacBook! Well, a keyboard hooked up to the MacBook, to be precise. Take a look at the video below.