The Lego NXT wall-e transformable robot is fully self controlled It uses Lego Mindstorms programming
environment. It is for all I know the first Lego build look-alike wall-e which is capable to transform automated. This transformation is quite similar to the way the original wall-e does it.



NXT® operated

Self / Remote controlled

Moves forward / backward

Spins R/L

Turns R/L

Holds things

Drops things

Makes noises

Sound aware

Hides tracks

Hides head & arms


Looks up/down



5 RCX ® motors

3 Levers



Height 15,5 cm

Width  17,5 cm

Depth 20,0 cm

Weight 1,8 kg



250 hours

Start September 2009

Finish July 2010


Next challenge

The speed of lifting the body is actual slower. This because the lifting shafts have to lift 1,8 kg with only one motor. This is achieved trough 3 worms in serial, which has the disadvantage of slow movement per second. The challenge is to speed it up. 


Special thanks to

Ingrid & Elise, Willem, Jeroen, Pieter, Michiel for giving me their time

My parents who showed me the power of the mind

WALL-E ® for inspiring me

Lego ® for making it a challenge

Angus MacLane for showing the way

Gyuta in Korea for building the first manually transformable

Mindsensors ® for providing the missing components

"Philo"Hurbain for his research and practical tips and tricks

BertycoX for the music "Robot in love"


nxtwallet taken apart


nxtwallet parts


Two scenes which where not used, but show some extra movements


Recent posts

  • Nxtwallet taken apart Especially for builders I made an overview of the different parts from Nxtwallet. For building purposes I will release for each part a separate video with views from different angles ...
    Posted Dec 24, 2010, 3:33 AM by nxt wallet
  • Completed - explainary video out before Christmas I completed Nxtwallet today. I encountered problems when Nxtwallet transformed by himself (instead of me by remote controlling). I first worked with time controlled automation, but when the battery power ...
    Posted Dec 12, 2010, 12:26 AM by nxt wallet
  • nxtwallet meets zWall-E4 At LEGO World in Zwolle (Netherlands) two important creations met. Both showed their capabilities to the audience. All went well. Nxtwallet which uses sound detection while transforming started beeping, because ...
    Posted Oct 29, 2010, 12:54 AM by nxt wallet
  • Working on version 1.1 i have been working on the next version of nxtwallet. The lifting gear is stronger. NXTSumoEyes from Mindsensors have been added to the back. The body has a lighter construction ...
    Posted Sep 4, 2010, 4:18 PM by nxt wallet
  • Transformation original video added In this video you can see the raw video of the transformation. When you see this video, listen to the sound of the motors. When you hear no motor sound ...
    Posted Aug 6, 2010, 10:58 AM by nxt wallet
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