Build Your Own Combat Robot

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Contents For more information about this book, click here. ACKNOWLEDGMENTS, XI INTRODUCTION, XIII 1 Welcome to Competition Robots 1 What Is a Robot?, 5 Combat Robot Competitions, 5 BattleBots, 7 Robot Wars, 9 BotBash, 11 Robotica, 13 FIRST (For Inspiration and Recognition of Science and Technology), 14 Robot Soccer, 16 The Scope of This Book, 17 2 Getting Started 21 The Robot Design Approach, 23 The Game of Compromise, 29 Design for Maintenance, 31 Start Building Now, 33 Testing, Testing, Testing, 34 Top Ten Reasons Why a Robot Fails, 34 Sources of Robot Parts, 35 Cost Factors in Large Robot Construction, 35 Safety, 36 Safety in the Use of Shop Tools, 37 Safety with Your Robot, 37 3 Robot Locomotion 41 Robots with Legs, 42 Tank Treads: The Power of a Caterpillar Bulldozer in a Robot, 45 Building Tank Treads for a Robot, 46 Wheels: A Tried and True Method of Locomotion, 47 Types of Steering, 47 Wheel Configurations, 50 Selecting Wheels for Your Combat Robot, 51 Tires, 53 Mounting and Supporting the Wheels and Axles, 54 Wheel Drive Types, 57 Protecting Your Robot’s Wheels, 59 Copyright 2002 by The McGraw-Hill Companies, Inc. Click Here for Terms of Use. v
vi Build Your Own Combat Robot 4 Motor Selection and Performance 61 Electric Motor Basics, 62 Determining the Motor Constants, 67 Power and Heat, 68 High-Performance Motors, 73 Motor Sources, 74 Internal Combustion Engines, 76 Conclusion, 77 5 It’s All About Power 79 Battery Power Requirements, 80 Measuring Current Draw from the Battery, 80 Battery Capacity Basics, 83 Preventing Early Battery Death, 84 Sizing for a 6-Minute Run Time, 85 Comparing SLA, NiCad, and NiMH Run-Time Capacities, 86 Electrical Wiring Requirements, 91 Battery Types, 92 Sealed Lead Acid, 93 Nickel Cadmium (NiCad), 95 Nickel Metal Hydride (NiMH), 97 Alkaline, 98 Lithium Ion, 99 Installing the Batteries: Accessible vs. Nonaccessible, 100 6 Power Transmission: Getting Power to Your Wheels 103 Power Transmission Basics, 106 Torque, 109 Force, 109 Location of the Locomotion Components, 112 Mounting the Motors, 112 Thermal Considerations for the Motor, 113 Methods of Power Transmission, 114 Chain Drive Systems, 115 Buying the Chain, 115 Chain Sprockets, 117 Belt Drive Systems, 118 Flat Belts, 118 Synchronous Belts, 119 V-Belts, 121 Gearboxes, 122 Mounting Gear Assemblies, 122 Securing Gears to Shafts, 122 7 Controlling Your Motors 127 Relay Control, 128 Poles and Throws, 128
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Page 8 and 9: Current Ratings, 129 How It All Wor
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Page 12 and 13: Acknowledgments We would like to th
Page 14 and 15: Introduction Some kids spend their
Page 16 and 17: About the Authors xv About the Auth
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42 OVING is what many might call a
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chapter Motor Selection and Perform
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Chapter 4: Motor Selection and Perf
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FIGURE 4-1 Typical motor performanc
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Determining the Motor Constants Cha
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FIGURE 4-2 Heat generated in an ele
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FIGURE 4-4 Motor power changes by d
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Chapter 4: Motor Selection and Perf
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FIGURE 4-7 24-volt, 185 rpm, 896 in
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the robot. If the engine is used to
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80 LECTRICALLY powered competition
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104 NE of the most important consid
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128 F batteries are the source of p
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chapter Remotely Controlling Your R
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FIGURE 8-1 Wiring and rotational po
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FIGURE 8-2 Futaba’s top of-the-li
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Chapter 8: Remotely Controlling You
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FIGURE 8-4 Typical radio frequency
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FIGURE 8-5 Motor with three capacit
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Innovation First Isaac Robot Contro
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FIGURE 8-6 Block diagram of Isaac o
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chapter 9 Robot Material and Constr
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Metals Aluminum Chapter 9: Robot Ma
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Stainless Steel Chapter 9: Robot Ma
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Titanium used to solder small brass
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Chapter 9: Robot Material and Const
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Welding, Joining, and Fastening We
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place, or some liquid may have ente
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vibration and bounce around the ins
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204 ECAUSE robot combat has evolved
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240 HE robots described in the book
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chapter 12 Robot Brains Copyright 2
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FIGURE 12-1 From top left to bottom
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Chapter 12: Robot Brains 263 space
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FIGURE 12-2 The BoeBot from Paralla
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Handy Board BotBoard Chapter 12: Ro
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FIGURE 12-5 Robo-Goose, a robotic g
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FIGURE 12-8 A fully autonomous robo
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S ummary Chapter 12: Robot Brains 2
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276 HE referee signals, and my hear
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chapter 14 Real-Life Robots: Lesson
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FIGURE 14-1 Chew Toy Chapter 14: Re
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FIGURE 14-2 Chew Toy with protectiv
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FIGURE 14-3 Wheel shown bolted to d
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FIGURE 14-5 Front view with arm dow
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Final Words Chapter 14: Real-Life R
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Chapter 14: Real-Life Robots: Lesso
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design all the parts, and Dave did
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FIGURE 14-12 The 4-inch-tall alumin
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FIGURE 14-15 Internal view of Live
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330 The Future of Robot Combat The
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336 NLESS you’re building an exac
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338 Build Your Own Combat Robot ■
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344 S promised, following are some
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350 Build Your Own Combat Robot Mic
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356 OLLOWING are formulas that you
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358 Index 1BDI, 272 1/4 wave antenn
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sources of robot parts, 35 top ten
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INTERNATIONAL CONTACT INFORMATION A
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