Robot Building for Beginners, Third Edition

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

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

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

CHAPTER 19 ■ WHEELS Although LEGO no longer sells these particular wheels, there are plenty of other sources. If you don’t happe ...

CHAPTER 19 ■ WHEELS By using 22 cm circumference wheels instead of 16 cm circumference wheels, the linear speed increases propor ...

CHAPTER 19 ■ WHEELS Table 19-2 lists some of the kits that include the 42.2 x 22 ZR wheel. Table 19-2. Some Kits That Contain 43 ...

CHAPTER 19 ■ WHEELS Ultrasonic cleaning machines vibrate with ultrasonic (above human hearing) waves. Millions of tiny bubbles f ...

CHAPTER 20 Coupler A coupler connects two things together. This chapter consists of step-by-step instructions for making a coupl ...

CHAPTER 20 ■ COUPLER Matching wheels screw onto the hubs. The wheels are available in a variety of sizes and colors. The two-inc ...

CHAPTER 20 ■ COUPLER Choosing Between Brass and Aluminum Tubing You can make the couplers out of either brass or aluminum (see F ...

CHAPTER 20 ■ COUPLER The tube walls must be 0.014-inch thick. “Wall size” is the thickness of the metal. K&S Engineering man ...

CHAPTER 20 ■ COUPLER Fitting the LEGO Cross Axle into a Tube A LEGO cross axle must fit into one side of the coupler. By inserti ...

CHAPTER 20 ■ COUPLER This explains how the wall size and two of the four tube sizes were determined. The other two tubes have la ...

CHAPTER 20 ■ COUPLER Although this tool cuts very straight, the ends of soft tubing curl in slightly after being cut. With this ...

CHAPTER 20 ■ COUPLER A small bench vise is fairly inexpensive and is a necessary tool in robotics. Cutting the Tubing with a Hig ...

CHAPTER 20 ■ COUPLER Insert a heavy-duty or fiberglass-reinforced cut-off wheel attachment into the rotary tool. Bring the rotar ...

CHAPTER 20 ■ COUPLER Testing the Cut Pieces To make one coupler, you should now have three 22 mm long tubes of diameters^7 / 32 ...

CHAPTER 20 ■ COUPLER The minimum length of axle that should be installed in a coupler is about 2.5 LEGO units long (a 5 LEGO uni ...

CHAPTER 20 ■ COUPLER Gluing the Coupler Together Glue adheres best to parts that are free of dust and oil. Be sure to clean the ...