Robot Building for Beginners, Third Edition

CHAPTER 8 ■ CLIPS AND TEST LEADS Testing Jumpers You’re now going to learn how your particular multimeter displays an electrical ...

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

CHAPTER 8 ■ CLIPS AND TEST LEADS (alternate) If your multimeter doesn’t have a continuity feature, turn the dial to the lowest o ...

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

CHAPTER 8 ■ CLIPS AND TEST LEADS If you don’t have a continuity feature, the meter should display 0L or ∞ (infinity) or some ver ...

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

CHAPTER 8 ■ CLIPS AND TEST LEADS A meter with continuity should now display short (see Figure 8-10) and should beep annoyingly. ...

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 8 ■ CLIPS AND TEST LEADS Turn the robot’s power off. Remove all of the batteries, if possible. Connect the black test p ...

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 9 Resistors Sandwich, the line-following robot, uses many resistors on its circuit board (see Figure 9-1). These resisto ...

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

CHAPTER 9 ■ RESISTORS Any of the resistor packs in Table 9-1 are perfectly adequate for a start. The Jameco #107879 includes a c ...

CHAPTER 20 ■ COUPLER ■ Caution During gluing, wear vinyl or nitrile (not latex) gloves. Enough skin exposure to epoxy resin lead ...

CHAPTER 9 ■ RESISTORS 5% tolerance means that a 100 W resistor could be as low as 95 W or as high as 105 W. That’s plenty accura ...

CHAPTER 20 ■ COUPLER Removing Extraneous Epoxy After drying, sand or chip off extra epoxy as desired. Notice how easily the epox ...

CHAPTER 9 ■ RESISTORS It may be worth buying a cutter from a local store rather than from a catalog (see Table 9-2), so that you ...

CHAPTER 20 ■ COUPLER Drill Press A drill press is a device that holds a drill firmly and completely perpendicular to the work pi ...

CHAPTER 9 ■ RESISTORS Measuring Resistance If your meter isn’t already on the 200 range (or thereabouts) for ohms, switch the d ...

CHAPTER 20 ■ COUPLER Drilling the Hole for the Setscrew Simply drill in the location marked earlier. Use a #43 drill bit. If you ...