PICTURES: https://drive.google.com/open?id=0B4Uro-Vq1PwkZEFSU0FCV3Bza28
This is the second last vex project of the year, and it is also the last week of the school year. The point of this lab is to have a working machine that can sort three types of "trash" - represented by marbles in this case. The 3 marbles are wood, plastic, and steel. Steel is the heaviest marble, while the plastic marble is very shiny and reflective.
This is the second last vex project of the year, and it is also the last week of the school year. The point of this lab is to have a working machine that can sort three types of "trash" - represented by marbles in this case. The 3 marbles are wood, plastic, and steel. Steel is the heaviest marble, while the plastic marble is very shiny and reflective.
We used these properties to our advantage. our design has a see-saw like mechanism to sort the steel. The heavy steel ball hits the seesaw and tips it. Those steel marbles then end up in a holding area. The wood and plastic marbles roll right past the seesaw, and after turning around, it reaches the mechanism which sorts between plastic and wood. The motor runs a feeder slowly , and it slides a marble past a light sensor. the light sensor is responsible for detecting the light reflectivity of the marble, and there is a flashlight positioned above the line tracker. If the reflectivity is low, then the sorter knows that the marble is wood, if the reflectivity value is high, then the sorter knows that the marble is plastic. After the reading, the robot moves a flipper. Th flipper then resets, and the ball ends up in the correct holding position
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