Menno Gorter just made an improved version of his NeXTosaurus Walker Biped Robot [1, 2, 3]. Now called Nxt2saurus.
Despite the very similar look with its old brother, it uses a completely new design, according to the author. It seems also quite faster and more agile!
NeXTosaurus is scanning its surroundings with the ultrasonic sensor and is able to search its way out of labyrints.
The robot uses weightshifting technique to balance itself and can turn on his own footprint using only two NXT motors.
Quite "simple" and effective, walking through obstacles!
Making use of just two servos it reveals a very ingenious mind, to find the minimum required steps, for an effective and balanced walk.
As usual, Menno makes a nice video and shoot some photos without revealing much of his secrets.
Just because of that, it would deserve a TechREVERSE challenge on its own!...
Looking at the new Saurus improved performance, I just wish it would become a model to included with the presumably next MINDSTORMS kit (NXT 3.0), or a very similar version of it...
Don't you agree?
Menno added some information trough this post's comments, that I found relevant to add to post text itself.
So here it goes...
"In the beginning there was my RCX-Nordic.
A nice RCX-biped with two motors capable of turning in it's own footprint.
It worked really fine, but a short while after this model I became a MDP-member so I made the NeXTosaurus version.
Observing that NeXTosaurus I discovered that is was able to avoid a lot of obstacles without the use of its sensors!
Quite handy since the ultrasonic-sensor wasn't able to detect all of the obstacles.
The idea of my PF-Raptor [4, 5] was born.
( You have to watch that video on my you-tube account to understand what it means when I say that it's possible to avoid obstacles without the use of any electronics. ( I made 3 of these kind of robots; See also Geared-Ant.))
After Legoworld 2010 I combined all the experiences and insights to make Nxt2saurus.
Because this model can walk and avoid obstacles perfect, with only the motors turning, it is very easy to program.
I solved a lot of the problems of NeXTosaurus in a mechanical way.
Observe the movements of its tail for example. That part stabilizes the biped a lot.
When watching the videos you will discover Nxt2saurus became about ten times faster, even on very soft undergrounds!
Thanks for the attention, Menno."
Last Update: 2011.Jan.07 02:30 CET