Sir Pulls-a-lot

Sir Pulls-a-lot is a robotic semi truck that operates using

four touch sensors,

                           two for steering, and two for driving

This is a top view of Sir Pulls-a-lot.

This is rear view of Sir Pulls-a-lot.

This is front view of Sir Pulls-a-lot.

 This is Sir Pulls-a-lot with an unloaded trailer.

This is Sir Pulls-a-lot with a loaded trailer.

Sir Pulls-a-lot uses an Archimedes screw turning a small

gear to drive. 

How I control Sir Pulls-a-lot's driving.

How I control Sir Pulls-a-lot's steering.

Sir Pulls-a-lot's transmission.

This is Sir Pulls-a-lot's axle transmission.

This is how Sir Pulls-a-lot steers

This is a closer picture of Sir Pulls-a-lot's steering system.

This is a movie of Sir Pulls-a-lot moving at full speed.

This is a movie of Sir Pulls-a-lot's steering.

Skid-bot

Skid-bot is a robot based on a skid-steer.

It lifts the boom with yarn,

Drives with treads,

       And moves the implement with an Archimedes screw.


      Close up of implement holder and Archimedes screw.

Close up of yarn motor.

(Yellow wheel)

This is the bucket implement.

Rear view of Skid-bot.

This is how it works.

This is a movie of the boom working.

This is a movie of the Skid-bot with a fork attachment moving a palette with tires on it. 

This is a movie of the Skid-bot hooking up to a bucket implement.

Ai crane

Ai crane is a motorized crane that can be controlled with buttons or can drive around and avoid walls by using the ultra sonic sensor.

It is 20” long 6” wide it is 9.5” tall  when the boom is down, when the boom  is up it is 16.5”.

It has 8 wheels 4 in the back and 4 in the front.

                                                              This is the chassis.

Wires, front and fenders added.

This crane lifts objects with a piece of thread that is strung through the holes in the LEGO pieces.

The thread is attached to a separate motor, switch and power supply.

                                                                  How it works:

This robot has two programs, the first one uses a color sensor to decide if there is a green ball in front of the sensor if there is then the left and right button on the NXT device move the boom up and down if there is not a green ball than it uses two touch sensors to move the vehicle forward and backward and the left and right buttons on the NXT to steer the 4 front tires.

This is what the crane looks like from a LEGO person point of view.

This is a movie of Ai crane avoiding walls.

This is a movie of Ai crane picking up a package.

Here is a pole. 

Which way dose the piece with the arrow pointing to it look better?

                           Cast your vote in the form of a comment.

                                              

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RoboHauler

RoboHauler is a truck that is 14 1/2 inches long, 7 1/4 inches tall and 7 inches wide at the dual wheels and is controlled with sensors.

It is not AI because I forgot to hook up the ultrasonic sensor (which allows the computer to see) and I did not  hook up the ultrasonic sensor when I remembered because the steering was in the way and I would have had to rebuild the whole thing.

This is the front left side of the truck.

This is the front right side.

This is the front of the truck.

This is the truck with a semi loaded trailer.

The truck carries around a motorcycle so that the drivers can 

park the truck and drive around on the motorcycle to save on fuel.

This is how the steering is controlled.

This is how movement is controlled.

The hood flips up for easy access to the steering mechanism.

A better view of the bed and fuel saving motorcycle.

Digger

Prototype # 1

This robot uses one touch sensor to turn the motor that lifts the boom.

When the motor turns the boom closest to the cab goes up wile  the bar coming off the cab opens the other boom.

Prototype # 2

This prototype uses two touch sensors that control the motor attached to the boom, one moves it up, another down.

Two motors drive it, and the motor mounted to the boom opens and closes the bucket.

Both Prototype's use a color sensor to determine wether to go forward or reverse.

Here its on a trailer attached to my RC.                                      

Close up of the bucket system.

A shark I drew with chalk.

Dave.