2019

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    Design and fabrication of patient’s assistant robotic arm
    (UMT Lahore, 2019-08) Faisal Arif; Umer Jalil; Wasif Sayal
    The Robotic arm was designed and implemented which did a job of drinking for disabled patients or for eldery persons. Basically, the designed was inspired from the human arm. The objective of this project is to develop an automated robot using the available resources at low manufacturing cost. We use the combined knowledge of designed, programming and electrical subjects. Each link has been first designed using Creo Parametric and then fabricated by using a 3mm thick aluminum sheet. The mechanical system of the robot comprised of locomotion, gripping and lifting mechanism. Each servo motor served the purpose of the movements of the elbow and shoulders joints. The electrical system of the robot comprised of servo motors, gripper motors and some other sensors like force sensitive resistance(Measures change in pressure). Servo motor of gripper took the voltage of 5V. A single buck convertor is used for the controlling of each servo whose main purpose is to convert +12V of AC supply to +12V of DC supply. The arduino has been programmed which provides specific motion to each motor. Grippers were designed to grip a glass from a predefined position and pre-defined shape of glass. The rotation of the gripper is 1800. Gear motors are used in gripper. The links were gave a motion in upward, downward, forward and backward. Ball bearings were used in the base for their rotaion. In fabrication of the prototype robot weight was always a pivotal factor.
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    Water purification system using solar radiation
    (UMT Lahore, 2019) Muhammad Hashim Ahmad Khan; Mustafed Rehman; Sikandar Ahmad Jahangir
    Water is essential need for survival of human beings. Only 1% percent of water is available for drinkable condition as Earth surface covered by 71 percent of water. So the rest of water present on Earth contaminated by some activities doing on Earth and its atmosphere. To meet with the problem of pure water. We have to purify water. Therefore, we proposed water purification using solar radiation in which we have parabolic dish containing mirror reflector and collector containing water. With the help of solar radiation, mirror reflect the solar radiation into a single point that called focal point. At that focal point, we have collector that will heat the water to vaporize form. We collect that vaporize form of water which is in purified form and we will reduce the quantity of water in collector to get more efficiency of purify water.