Functional LEGO Wheelchair

This creation is simply awesome, I never figured that Lego technic frame can do this... A human real scale functional vehicle...

In Burf's words:

"Currently still a prototype, the LEGO Wheelchair can move a 90kg person.

It uses 6 NXT's to drive 12 NXT motors (2 per NXT for maximum power output) which are connected to 12 Rotacaster multi-directional wheels. Using these wheels will later allow for side to side movement(strafing).

There is a master NXT which controls the 6 NXT via turning on/off touch sensors. The joystick is connected to 4 touch sensors to determine direction (forward, backwards, turn left, turn right). 

The master NXT then turns 2 motors (left / right side) different directions which turn on / off 12 touch sensors (2 per NXT for backwards / forwards)."

More Phtotos at Burf's Flickr Stream http://www.flickr.com/photos/lego_robotics/sets/72157630834326774/