This is the last lab of the year, the launcher lab. This lab is very different from the other labs because we had to follow build instructions to build the launcher, everyone should end up with the same machine at the end. The aim of this machine is to build a machine capable of launching a ping pong ball.This machine has a launching arm, and its angle is adjustable via the two bump switches in the back. A limit switch sets of the firing mechanism, which spins really fast, hammering the ball off of the machine.
PICTURES: https://drive.google.com/open?id=0B4Uro-Vq1PwkV21FMVJqdzUwZUU
This is the last lab of the year, the launcher lab. This lab is very different from the other labs because we had to follow build instructions to build the launcher, everyone should end up with the same machine at the end. The aim of this machine is to build a machine capable of launching a ping pong ball.This machine has a launching arm, and its angle is adjustable via the two bump switches in the back. A limit switch sets of the firing mechanism, which spins really fast, hammering the ball off of the machine.
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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. 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
PICTURES: https://drive.google.com/open?id=0B4Uro-Vq1PwkSUdPQkMtMGZHdHM For this Lab, we were challenged to create an elevator that can serve three floors. It should be able to pick people up and then drop them off to in the bottom of the building. My elevator was really ambitious, being the tallest, and the sturdiest elevator, and plus - it looked cool. The elevator carriage is moved by a motor, which drives a pair of sprockets, which moves a chain attached to the elevator carriage, moving it up and down. there are limit switches on the top and bottom of the elevator, which gives it an ability to stop accurately. The quadrature encoder is responsible for making sure that the elevator can accurately reach the second floor. Each floor has a button and a status LED. The status led shows which level the elevator is at and will flash quickly if there is an emergency. when the emergency button is pressed, the elevator returns to the first floor (if it is somewhere else), then it disables all of the buttons, then makes the LEDs flash rapidly, signaling that you might want to use the stairs. |
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AuthorHey there, my name is Surya, I'm 14 years old. Archives
May 2016
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