Mindstorms Sensor


  Mindstorms Robots by Jörg Roth
  

     
   

 Mars Rover Mars Rover 

 Johnny5 Johnny 5 

 Robot Bird Bird 

 Robot Crab Crab 

 Robot Threewheeler Tricycle 


Jörg Roth's Homepage   

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Here is a selection of Mindstorms NXT robots I built:


Mars Rover    Mars Rover

This project was inspired by the mars rovers Spirit and Opportunity. The robot should have 6 wheels, 4 of them steered. Sensors should capture the environment and a sensor arm should move out to scan objects. The robot should receive commands from a operator terminal via Bluetooth.

The detailed report of the Mars Rover project...

Pictures

(more pictures here)
Mars Rover

"Mars Rover" (virtual model)

Mars Rover

"Mars Rover" (real model)


Johnny 5    Johnny5

A model of the robot Johnny (number) 5 from the movie "Short Circuit":
  • This model is a combination of mockup and functioning model: it should look like the original robot in the movie and, on the other hand, should execute a number of simple tasks.
  • It combines Lego technics parts with the traditional lego bricks.
  • Finally, I want to discover the limitations of the LabView software development method, the potentials of the NXT approach and the mechanical restrictions of Lego construction.
The detailed report of the Johnny 5 project...

Pictures

(more pictures here)
Johnny 5 Front/Left

"Johnny 5"

Johnny 5 Left

"Johnny 5" (side view)


Bird    Robot Bird

My first robot, that was able to walk on two feet:
  • The turnable head shifts the center of mass. For each step, the centre of mass is moved over the supporting leg.
  • The other leg is moved forward, meanwhile the body is shifted in front of the supporting leg.
  • After this, the head is shifted to the other side - a single step is now finished.

Pictures

Robot Front

Front side (standing)

Robot Front

Front side (step)

Walking

Walking
(the walking leg does not touch the ground)

Eyes

The distance sensor

Legs

The leg

Head

The turnable head


The Crab    Robot Crab

My first robot that crawls on legs:
  • Two motors control four legs with two skids each. At least three skids have bottom contact.
  • The third motor controls the head, this time via worm drive.
  • A tactile sensor detects short range obstacles.

Pictures

Robot Front

Front side

Head

Again, front side

Legs

The legs

Legs

Again, the legs

Tactile Sensor

Tactile sensor

Head

The head


Tricycle Robot    Robot Threewheeler

My first Mindstorms robot:
  • A turnable ultrasonic distance sensor detects obstacles in driving direction. It permanently turns between +/- 45 degrees.
  • A tactile sensor at the bottom detects small obstacles that are not detected by the ultrasonic sensor.
  • A tilt sensor supervises the robot's horizontal position.

Pictures

Robot Front

Front side

Robot Rear

Rear side

Distance Sensor

Turnable distance sensor

Tactile Sensor

Tactile sensor

Tilt Sensor

Tilt sensor