Light Seeking Robot ATLAS_15

Hey guys this is my first instructable,in wich i'll teach you how to make a light seeking robot.This is a project i've made ,because i like robotics, and i'm starting with it, so it's a simple way to build a robot.I've made it with very cheap materials, but if you want you can make it better ,i'm planning to make a radiocontrolled one , but i dont know anything about it .
Let's get started !!!....

For this instructable you'll need :

2 Plastic circles , i used  circles but you can use any shape 

3 big screws and bolts 

Hot glue  and hot glue gun

Cables (1,5 meters aprox.)

2 Dvd 5.9 Volts Motors

2 TIP120 Transistor

2 1k Resistors 

2 1N4001 Diodes

2 LDRs

1 breadboard (optional , i didn't use it ,but it make a more structured project)

2 Wheels ( i got them from an old toy )

1 Switch 

To power up this project i'll be using a 9 volt battery , but you can also use a A23 12 volt battery or any other similar power source ,you'll also need sodering tools such a sodering iron stanium , helping hands ,etc.

 

This is the diagram of the circuit i used . be carefull off the polarity of the motors and the position of the LDRs , because that defines the moves that the robot does .Before you proced to the next step , make sure that the motors spin in a correct way .There are no sodering instructions less than these , so you are free to make it in your way!!

To make the body i used 2 old plastic circles , and i attached it with screws and bolts as  it's show down there , but you can make the body you want , you could also use and od tupper .

So now we are at the fun step , i glued  the circuit to the body with the hot glue gun , i also added the wheels to the motors using  it .I glued the LDRs to the top circle of the body , as it's showed in the image below .After you glued everything you'll have to put on the bolts to close the body of the robot ....

Now you are done !!! You've made a light seeking robot !!!!

I leave more images to show you more of my robot ,stay hungry stay  foolish ....