Tilt-A-Ped - A line following biped by 222doc

A few weeks ago 222doc posted a video to youtube showing his Tilt-A-Ped. This was his entry at nxtasy#4.
Tilt-A-Ped is a weight shifting bi-ped that uses two light sensors to follow a black line.
The nxt brick shifts left to right and right to left, and at the point of inbalance it teeter-totters at the ankles, then one of the two leg motors rotate as needed.
The brick is modular, and can easily be removed.
Below is 222Docs video of it in action.


A few days later he posted another video showing Tilt-A-Ped's mechanical features overview

New Version of LEGO Digital Designer Version 2.3 NOW WITH PF ELEMENTS

A new version of LEGO Digital Designer (Version 2.3) just been released. I am currently downloading it now. I am glad that the Power Function Elements have been added. Many-a-Mindstormer have been awaiting this.

As well as the P F elements, the new version also contains a few new box sets including the LEGO Creator 4957 Ferris Wheel and the 4958 Monster Dino.

As BluetoothKiwi Said,

"Thanks LEGO for listening. Now we can include PF motors in our NXT robotic models. It is a shame they still dont have the IR-Lnk though - you have to use a light sensor as a place holder until the IR-Link makes it to the pallette!"

You can download the latest version of Lego Digital Designer (Version 2.3) at www.ldd.lego.com