Page 14 - Robot Builder's Bonanza
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CONTENTS xiii
Attaching Mechanical Linkages to Servos 276
Drivetrain Components for Robotics 277
Using Rigid Flexible Couplers 278
Working with Different Shaft Types 282
Everything You Always Wanted to Know about Gears 283
Chapter 25—Robot Movement with Shape Memory Alloy 287
Shape Memory Alloy Comes to Robotics 287
Basics of Shape Memory Alloy 287
Using Shape Memory Alloy 288
Operating SMA Using a Microcontroller 290
Experimenting with SMA Mechanisms 291
Using Ready- Made SMA Mechanisms 292
Part 4— Hands- on Robotic Projects
Chapter 26—Build Robots with Wheels and Tracks 297
Basic Design Principles of Rolling Robots 297
Two- Motor BasicBot 304
Bonus Project: Double- Decker RoverBot 306
Building 4WD Robots 306
Building Tank- Style Robots 309
Chapter 27—Build Robots with Legs 318
An Overview of Leggy Robots 318
Selecting the Best Construction Material 321
Scratch Build or Parts Kits 322
Leg Power 324
Walking Gaits for Legged Robots 327
Build a 3- Servo Hexapod 328
Creating X- Y Servo Joints 335
Bonus Project: Build a 12- Servo Hexapod 338
Chapter 28—Experimenting with Robotic Arms 339
The Human Arm 339
Degrees of Freedom in a Typical Robotic Arm 340
Arm Types 340
Actuation Techniques 343
Build a Robotic Wrist 344
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