THE USE OF A CAR WINDSHIELD RUBBER BLADE TO MAKE A MOTORIZED WHITEBOARD ERASER

Abstract

Innovation from scrap materials can go beyond expectations. For this reason, the objective of this study is to create a motorized whiteboard eraser out of a car windshield rubber blade from a broken car. With the help of Arduino Uno and Arduino Interface, an open-source electronics platform based on easy-to-use hardware and software, was able to help read the coding and inputs in causing the wiper move with a switch, battery and motor. The results of the study showed that the time of executing the command was 0.35 seconds after turning the switch on, while the distance covered in centimeters by the motorized whiteboard eraser was 75cm. It is also noted that after four rounds of horizontal swiping directions it had totally erased the writings on the whiteboard. Further, in terms of the speed of erasing the writings, the shortest time was 0.0852 miles per hour. Proving its efficacy on erasing various percentages of shaded parts it is recorded that in 50% shaded part it took a minute and six seconds, while in 75% shaded part it took one minute and 20 seconds, lastly, in a 100% shaded it could totally be erased in a span of one minute and 36 seconds. As a result, it is recommended to increase the speed of the motorized whiteboard eraser by utilizing a bigger motor with a higher RPM capacity. Moreover, it is advised that the whiteboard eraser be improved in order for the rubber blade to entirely adhere itself to the whiteboard in order to have less constraints on erasing. It is also recommended that you choose a lighter material than PVC in order for the eraser to operate smoothly.