No abstract

Industrial automation helps to eliminate the possibility of human error, reducing costs, saves time-consuming, and achieves higher productivity with better quality with the helps of the control system and technologies that enable industrial processes and machinery to operate automatically. For paper cutting applications, an automated cutter that able to cut the paper at specific lengths and operate according to the parameter setting by the user could help to save cost and time. Therefore, this work is to develop a cut to length machine using the Unitronic Jazz Programmable Logic Controller (PLC) with the combination of Human Machine Interface (HMI) features. This work aims to design and fabricate a small scale cutting machine controlled via a PLC software. To enhance the security system, one-stop center control panel is developed. The iron framework is chosen as a basement of the conveyor and cutter, with the fabrication process consists of five stages. The relationship between the measured speeds of the Alternating Current (AC) induction motor over the frequency range is discussed. From the experiment, the result shows that the machine able to cut the paper with a good precision and accuracy at the length of 1, 5, 6 and 7 inch for the paper type of 50, 70 and 80 gram per square meter (gsm) with the constant pneumatic pressure of 7.5MPa and constant motor speed at 60rpm (2Hz).

Recently, combat robot competition has become one of the most famous engineering competitions among schools and universities. The robots are usually built with a destructive weapon, which can immobilize or disable opponent’s robot and win the match. Despite the variety of robot design and concept, the trend has shown that most of the local contestant tend to design a horizontal axis weapon type. In this project, a wireless vertical axis bar spinner combat robot is designed and developed for the 3rd Malaysia Combat Robot Competition which was held at National Science Centre (PSN) in 2017. The robot is controlled using radio control (RC) and powered by a highly discharge 22.2V Lithium Polymer (LiPo) chemical battery. Furthermore, related analysis has been conducted to meet the design and performance requirement of the competition. With the DC brush motor and thick metal bar rotating in vertical axis, the robot has proven to produce high power, torque and speed during the competition.