Page 362 - Making things move_ DIY mechanisms for inventors, hobbyists, and artists
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Index    339



                   Make Your Own Gears       attaching to motor shaft,  working with hobby
                     project, 215–223         205–206                   servos, 203–204
               center punch, 267             scavenging from consumer  working with other types
               ceramic                        products, 238             of motors, 204
                   capacitors, 112–113  composites                cranks
                   as material type, 42      foam core, 47            bell, 249
               CFL (compact fluorescent light)  overview of, 44       overview of, 239
                 bulbs, 103                  paper and cardboard, 46  creation stage
               chains, and sprockets, 228–229  wood, 44–46            analog, 257–258
               chamfer, 57              compound gears, 225–226       digital, 258–262
               charge controllers       compressed gases, 115         making things move
                   for capacitors, 114  compression springs, 118,       ecosystem and,
                   in SADbot project,     231–232                       256–257
                     316–317            compressive strength, 35      overview of, 257
               circuit                  computer-aided design (CAD)  Creative Commons (CC) licenses,
                   defined, 101           programs, 258–262         277–278
                   in Not Lazy Susan project,  computer numerically controlled  crowbar, as first class lever, 6
                     288–293              (CNC) routers, 274–275  CupCake CNC, 111
                   in Wind Lantern project,  computer power supplies,  current drain, standard hobby
                     303–305              110–111                   servo motors, 136
               circular pitch (p), spur gears  conductivity       current (I)
                   defined, 213              of aluminum, 41          measuring electric power
                   gear equations, 214       of copper, 41              in watts, 103
                   Make Your Own Gears       of silver, 42            Ohm’s law and, 103
                     project, 215–223   constant-force spring, 236    overview of, 99–100
               clamp hubs, 206          continuous rotation hobby     voltage varying with load
               clamps                     servos, 136, 173              and, 106
                   creating rigid shaft  Control Speed using Hardware  cutting
                     couplers using, 208  PWM project, 158–162        in analog fabrication,
                   Not Lazy Susan project,  Control Speed using Software  271–272
                     282–283              PWM project, 163–168        cardboard or paper with
               classes of levers. See levers  coordinate system of axes and  mat, 46
               cleanup, in digital        planes, 23–24               safely, 272
                 translation, 266       copper                    cycle, cam, 241
               clearance between parts, 83–85  in bio-batteries, 116–117  cylindrical cams, 242
               clearance holes               brazing, 71
                   in Not Lazy Susan         overview of, 41–42
                     project, 283            in sterling silver, 42  D
                   overview of, 54–55   copyrights, 277
                   screw sizes and, 55–56  Cos (angle), estimating  D-shaped motor shafts, 204–205
               close fit, screws, 54      torque, 76              DaVinci, Leonardo, 250–251
               closed pulley systems, 9–11  counterbore drill bits, 60,  DC (direct current)
               clutches, 210–211          200–201                     defined, 100
               CNC (computer numerically  countersink drill bits, 60  power converters, 111
                 controlled) routers, 274–275  couplers               turning AC power into,
               coefficient of friction (μ)   attaching components to    110–111
                   assuming, 78–79            motor shafts, 205–207  DC gearhead motors
                   estimating, 80–81         attaching gears and other  attaching components to
                   Estimating Coefficient of  components to shafts,     motor shaft, 205–206
                     Friction project, 81–83  209–210                 Basic DC Motor Control
                   measuring, 79–80          attaching motor shaft to   project, 145–146
               combination bushings, 199      another shaft, 207–209  couplers for, 204
               compact fluorescent light (CFL)  defining, 203         with flatted shaft, 205
                 bulbs, 103                  increasing shaft size, 207  overview of, 131–133
               Compleat Sculptor, 272        using D-shaped or flatted  standard hobby servo
               components                     motor shafts, 204–205     motors similar to, 134
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