Robot Building for Beginners, Third Edition

CHAPTER 6 ■ ROBOT LINE-FOLLOWING Sandwich has two wheels. If the robot had four wheels, it would be very difficult for it to piv ...

CHAPTER 19 ■ WHEELS Characteristics of Robot Wheels The role of the wheel is to transfer the mechanical force from the motor to ...

CHAPTER 6 ■ ROBOT LINE-FOLLOWING Sandwich Body I confess that Sandwich wasn’t the first line-following robot I built for this bo ...

CHAPTER 19 ■ WHEELS Solid tires wear well but don’t grip as well, nor do they absorb bumps as well as pneumatic tires. However, ...

CHAPTER 6 ■ ROBOT LINE-FOLLOWING Figure 6-18. Ziploc brand square 2.5 cup container Most disposable food storage containers are ...

CHAPTER 19 ■ WHEELS On the other hand, skinnier tires have lower rolling resistances and can turn much more easily. They weigh l ...

CHAPTER 6 ■ ROBOT LINE-FOLLOWING To whatever extent you can, use the same type and the same size screws throughout your robot. T ...

CHAPTER 19 ■ WHEELS Slick tires provide maximum contact in dry, flat conditions. For this reason, professional racecars use slic ...

CHAPTER 6 ■ ROBOT LINE-FOLLOWING Of course, you still have the option of modifying the kit as desired, by substituting your own ...

CHAPTER 19 ■ WHEELS Calculating Linear Speed Here’s the formula for linear speed: (RPM of loaded motor / 60 seconds in a minute) ...

CHAPTER 7 Nine-Volt Batteries Sandwich, the line-following robot, uses a 9 V battery for power. In fact, most of my robots use 9 ...

CHAPTER 19 ■ WHEELS calculations. Now that we know the loaded speed, let’s plug it back into the original formula to make sure i ...

CHAPTER 7 ■ NINE-VOLT BATTERIES Testing Battery Voltage Now you’re going to learn how to test a 9 V battery’s voltage with a mul ...

CHAPTER 19 ■ WHEELS Reasons for Choosing LEGO Wheels LEGO is very supportive of the robotic community. Their building blocks are ...

CHAPTER 7 ■ NINE-VOLT BATTERIES To protect the meter, you must always select a number that’s bigger than the maximum you expect ...

CHAPTER 19 ■ WHEELS Wheel Choice for Sandwich A couple of factors go into selecting appropriate wheels for the line-following ro ...

CHAPTER 7 ■ NINE-VOLT BATTERIES Interpreting Test Results If the multimeter display shows a negative number (see Figure 7-6), th ...

CHAPTER 19 ■ WHEELS It seems that 19 cm is the maximum diameter you could use and still have part of the robot’s body touch the ...

CHAPTER 7 ■ NINE-VOLT BATTERIES When you remove either probe from either battery snap terminal, the meter will display zero agai ...

CHAPTER 19 ■ WHEELS My Choice of Wheels for Sandwich Based on the previous paragraphs, the wheel diameter is the most significan ...