The 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
http://www.flickr.com/photos/lego_rob...
For more information on this project please go to http://www.burf.org.uk/

• Category

  Autos & Vehicles

[Neil Balch]

Simon, do you think you would have the time to make one that could move a larger weight? It is so awesome!

[Simon Burfield]

I have tested the chair up to 100kg, but what are you thinking? 150kg?  I am sure I could

[RoyaltyInCode]

I was just wondering if you would be so kind as to just roughly estimate how much all the technic pieces would have cost you

[Simon Burfield]

Oh I usually use the rough guess of £5000. It has 7 NXT's etc, £300 of Rotacaster wheels at a guess and a lot of 5 x 7 frames which are expensive

[RoyaltyInCode]

I was wondering, I am doing a special project and was wondering if you could give me an estimate of the normal cost of the technics pieces, that would help so much thank you in advance.

[Simon Burfield]

I am not sure what you require, try bricklink

[GodCrafter]

A little too slow for a wheelchair. Even my grandmother can walk faster than that

[diedie111590]

only takes 2 days to get out of your house!

[Webmaster4o]

Nice!

[Peter H]

lol

[Neil Balch]

Can't tell, good idea!