LEGO Wheelchair
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).

Special thanks to LEGO and Rotacaster.com.au for supporting this project.

Flickr Stream
www.flickr.com/photos/lego_robotics/sets/72157630834326774/
For more information on this project please go to www.burf.org.uk/
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