About the Author ix About the CAD Reviewer x About the Technical Reviewer xi Acknowledgments . xii Introduction xiii Chapter 1: Turns and Tricks 1 Day 1: King Ixtua’s Treasure Repository, 2:13 p.m. . 1 The Maze Challenge . 4 Evan’s Solution 6 Chapter 2: Mazerunner—Planning and Design . 9 The MazeRunner 9 The Robot Description 11 The Task List 12 Limitations/Constraints 13 Mindstorm 15 Sketches 17 Chapter 3: MazeBot—Build It 19 Never Be Afraid to Experiment . 20 Step by Step CAD Instructions – MazeBot . 21 Chapter 4: MazeRunner—Program It 41 Some Experience Required 41 Into the Maze . 46 Out of the Tunnel . 55 Left Turn and Right Turn Calculations . 58 Simulating the Challenge . 59 Chapter 5: Swing and Switch 61 Day 4: King Ixtua Treasure Repository, 9:14 a.m. 61 Don’t Look Down 62 The Monkey’s Swing Challenge . 63 Evan’s Solution 64 Chapter 6: RopeSwinger—Design and Planning . 65 Getting Started . 65 The Robot Description 65 The Task List 66 Limitations and Constraints . 68 Mindstorm 68 Sketches 70 Chapter 7: RopeSwinger—Build It . 73 Never Be Afraid to Experiment . 74 Step by Step CAD Instructions – RopeSwinger 75 Chapter 8: RopeSwinger—Program It . 113 Swing Swing 113 Pulling the Lever 117 Chapter 9: Hook and Pull . 125 Day 5: King Ixtua’s Treasure Repository, 8:39 a.m. . 125 Watch Your Step 126 Tricky Tupaxu 127 The Four Warriors 128 Hooks and Doors 129 Evan’s Solution 131 Chapter 10: RingTosser—Design and Planning . 133 The RingTosser 133 The Robot Description 133 The Task List 134 Limitations and Constraints . 136 Mindstorm 136 Sketches 138 Chapter 11: RingTosser—Build It 141 Step by Step CAD Instructions – RingTosser . 143 Chapter 12: RingTosser—Program It 179 It Starts with Rolling 179 Building the Challenge Area 187 Chapter 13: Rock and Roll . 201 Day 6: King Ixtua Treasure Repository, 9:27 a.m. 201 The Story Wall 202 An Uphill Battle 202 The Ramp of the Warriors 203 The Ramp Room 205 Evan’s Solution 206 Chapter 14: RampRider—Design and Planning . 207 The RampRider 207 The Robot Description 207 The Task List 209 Limitations and Constraints . 210 Mindstorm 210 Sketches 212 Chapter 15: RampRider—Build It 213 Step by Step CAD Instructions – RampRider . 217 Chapter 16: RampRider—Program It 235 Multiple Statues . 235 The Ramp Challenge Setup 244 Chapter 17: Grab and Release . 247 Day 7: King Ixtua’s Treasure Repository, 8:41 a.m. . 247 Tupaxu’s Story . 248 The King’s Throne 250 Evan’s Solution 251 Chapter 18: ZipLiner—Design and Planning 253 The ZipLiner . 253 The Robot Description 253 The Task List 254 Limitations and Constraints . 256 Mindstorm 256 Sketches 258 Chapter 19: ZipLiner—Build It . 261 Step by Step CAD Instructions – ZipLiner 263 Chapter 20: ZipLiner—Program It . 291 Hold On! . 291 The Zip Line Challenge Setup 295 Chapter 21: Treasure and Discovery . 303 Day 8: King Ixtua Treasure Repository, 7:02 a.m. 303 Qau’s Challenge . 304 The King’s Legacy 304 Qau’s Teacher 305 ■Design Journal . 307 ■Index 317