Page 363 - Making things move_ DIY mechanisms for inventors, hobbyists, and artists

340 Making Things Move

DC motors Different Diving Boards project, dynamic load, bearings,
advanced control of, 48–49 193–194
162–168 Digesting Duck automaton, 250 dynamic thrust, linear
Arduino extensions and, digital motors, 143
168–169 creation, 258–259 dynamic torque, stepper
Basic DC Motor Control fabrication, 274–276 motors, 139
project, 145–146 force gauges, 90
continuous rotation hobby integration, 276
servos, 136 proliferation, 278 E
continuous rotation hobby translation, 265
servos, controlling, 173 dip, edge cam with, 241–242 edge cams, 240–242
couplers for, 204 direct current. See DC (direct efficiency, and standard DC
gearhead, 131–133 current) motors, 131
standard, 129–131 disc washers, 235 effort. See input (effort or force)
standard hobby servos, disk cams, 240–241 80/20 Inc, 39
133–136 distance elastic energy storage, 118–121
standard hobby servos, defining work, 97 electrical options, measuring
controlling, 169–172 estimating torque, 74–75 force, 89–90
steppers, 137–139 estimating work, 2 electrical power
types of, 128–129 Measuring Motor Torque alternative. See alternative
DC toy motors project, 91–93 energy sources
Basic DC Motor Control diving board, as leaf spring, 236 batteries, 106–110
project, 145–146 DIY Motor with Magnet Wire computer power supplies,
Breadboard A Circuit project, 124–127 110–111
project, 150–152 doorbells, and solenoids, 143 how motors work, 124
defined, 129 double-headed nails, 64 overview of, 98–104
overview of, 129–131 drag, free body diagrams power converters, 111
Solder a Circuit project, illustrating, 85 variable benchtop
146–149 drawing machine. See SADbot supplies, 105–106
deburring tool, 268 project electroactive polymer actuators
degrees of freedom, design Dremel tool (EAPs), 186
constraints and, 23–24 cutting with, 271 electrolytic capacitors, 112–113
delrin plastic, 43 drilling with, 267–268 electronics
density in Not Lazy Susan project, in Not Lazy Susan project,
of aluminum, 40 291–292 281, 288–291
as material property, 34 resolving stripped screws in SADbot project, 306
of steel, 39 with, 60 in Wind Lantern project,
design constraints drill presses 294, 303–305
degrees of freedom and, creating holes for endmill, 201
23–24 bearings, 201 energy
minimum constraint drilling centered hole with, alternative. See alternative
design, 24–25 268–271 energy sources
overview of, 22 using, 268 capacitors for storing,
design for manufacture, 256 drilling 112–114
design, starting with, 256 in analog fabrication, mechanical power and,
detent, ratchet-and-pawl 267–268 96–97
system, 246 Drilling Centered Hole using machines to
detent torque, stepper Without Lathe project, transform or transfer, 2
motors, 139 268–271 energy-harvesting modules,
diameter of shaft, stepper drive styles, screws, 59–60 capacitors, 114
motors, 139 drive trains, 18 epicyclic gears, 21–22
diametral pitch (P), spur gears drum cams, 242 epoxy
defined, 212 drums, 9 attaching gears/other
gear equations, 214 duct tape, 69 components to
Make Your Own Gears ductile, as material property, 34 shafts, 210
project, 215–223 Duggal Energy Solutions, fastening with, 67
overview of, 19 alternative power, 115 in Not Lazy Susan project,
dwell, edge cam, 242 293