International Journal of Engineering Research and Development e-ISSN: 2278-067X, p-ISSN: 2278-800X, www.ijerd.com Volume 11, Issue 01 (January 2015), PP.28-31 28 An Experiment with circular saw blade – SPIKE Robot Ojaswi Singh 1 , Rahul Sharma 2 , P. Vijay Kumar 3 , Aparna Gupta 4 1, 2, 3 BE students, Department of Electronics and Communications, Lakshmi Narain College of Technology and Science, Bhopal, Madhya Pradesh, India 4 Assistant Professor, Department of Electronics and Communications, Lakshmi Narain College of Technology and Science, Bhopal, Madhya Pradesh, India Abstract:- Robotics is an art which comprises of technology which deals with the design, construction, operation, and application of robots as well as computer systems for their control, sensory feedback, and information processing. This work gives the reader detail information about the Spike Robot that was created with basic wired robotics concept but reserves the capability to perform many actions, possible modifications will surely be going to enhance that capability. Keywords:- Circular saw blade, Geared Motor, Rectifier, Transformer I. INTRODUCTION As robots have become more advanced and sophisticated, experts and academics have increasingly explored the question of what ethics might govern robot‟s behavior, and whether robots might be able to claim any kind of social, cultural, ethical or legal rights. One scientific team has said that it is achievable that a robot brain will exist by 2020. A computer scientist, scientific author and a mathematician Vernor Vinge has suggested that a moment may come when computers and robots are smarter than humans. He calls this "The Singularity". He suggests that it may be somewhat or possibly very dangerous for humans. This is discussed by a philosophy called Singularitarianism. There are also concerns about technology which might allow some equipped robots to be controlled mainly by other robots. Spike: The legal meaning of the word Spike is „thin, pointed piece of metal, wood, or another rigid material‟. So as the name and meaning suggests, the robot‟s name was kept so because of its unique sharp circular saw blade that retains the capacity to chop away anything that comes in its way. Its control and locomotion was controlled by the user through the basic components listed below: A switch is an electrical component that can break an electrical circuit, by either interrupting the current or diverting it from one conductor to another. The most familiar form of switch is a manually operated electromechanical device with one or more sets of electrical contacts, which are connected to external circuits. Each set of contacts can be in one of two states: either "closed" meaning the contacts are touching and electricity can flow between them, or "open", meaning the contacts are separated and the switch is not conducting. In case of SPIKE the switches controlled almost every single movement of the robot undeviatingly or periphrastically. II. POWER SUPPLY TO THE ROBOT A robocar needs DC power to operate wheels and ballista. This supply is generally between 12 to 36 Volts. In Spike the weapon used was a self starter motor of two wheeler bikes which needs 24 volt DC.The self starter motor needs 24 volt lead acid battery with the capacity of 14Ah. Spike is a wired robot so we had an option to give external supply to the circular saw blade that‟s why we used AC to DC step dowsn transformer. The wheels are powered by another transformer. The use of another transformer for wheel‟s section is explained further. 1. Initial power supply- The initial power supply is 230V AC given to the transformer. This is generally a domestic power supply used in regular basis. 2. Step down transformer –Transformers are the core of the electronic and electrical as well. These transform the voltage level to another level by increasing or decreasing current at the output side. The step down transformer converts higher voltage level to a lower voltage level. The reimbursement is made by accommodating current or impedance. There are various transformers available with various output voltage and current ratings. Also if we deal with such motors, having difference of chalk and cheese, with single transformer we discover issues like- risk for burning transformer coil, complex circuit for distributing voltage and current for