Page 372 - Making things move_ DIY mechanisms for inventors, hobbyists, and artists

Index 349

stainless steel storytelling, mechanical, digital fabrication,
as biomaterial, 47 251–252 274–275
choosing for screws, 62 straight-line velocity (v), rps sketching, 239, 258
defined, 32 vs., 14 using digital, 259
stains, wood glues not strain relief, soldering, 149 3ds Max, 2D and 3D modeling
accepting, 46 stranded wire, 150 tool, 261
stall current strength 3-IN-ONE lubricant, 84
DC gearhead motors, 133 of aluminum, 40 through holes, for wood
defined, 106 of steel, 39 structures, 46
stall torque stresses, material, 35–36 throws, crank, 239, 240–241
DC gearhead motors, 133 stripped screws, resolving, 60 thrust bearings
standard DC motors, 131 styrene, 43 defined, 190
standard hobby servo super glue, 68 overview of, 196
motors, 136 switching benchtop power project. See Not Lazy
standard DC motors, 129–131 supplies, 105 Susan project
standard hobby servos thrust ball and roller
Control Standard Hobby bearings, 196–197
Servos project, 170–173 T thrust washers and
overview of, 133–136 bushings, 197
standard pulleys and belts, 228 Tan (angle), for torque, 76 in Wind Lantern project,
staple guns, 64 tape, fastening with, 69 296, 298–299
staples, 64 tape measures, with thrust bushings and washers,
static equilibrium, 78, 85 constant-force springs, 236 197, 298
static load tapped holes thrust load or axial load, 197
bearings, 193–194 defined, 53 TIG (tungsten inert gas)
linear motors, 142–143 major diameter and welding, 70
steel threads per inch, 53–56 timing belt pulley system,
choosing for screws, 62 project example, 57–59 9–10, 228
overview of, 39–40 tee nuts, 63 tin snips, 271
stainless, 47, 62 Teflon tinning the tip, soldering, 147
steering systems, 15 as biomaterial, 47 TIP120 transistor, 289–291
stem guide, cams, 241 defined, 195 titanium, as biomaterial, 47
step angle, stepper motors, 137 as type of plastic, 43 tolerances
stepper motors tension springs, 232–234 material, 36–38
Control a Bipolar Stepper tension (stretch), 35 overview of, 37–38
Motor project, 175–180 tensioners, in pulley in Wind Lantern
controlling, 173 systems, 227 project, 296
couplers for, 204 thermoplastic materials, 43 tool-path generation, digital
overview of, 137–139 thermoset plastics, 43 translation, 266
in Seasonally Affected third class levers, 8–9 TopMod modeling tool, 261
Drawing Robot. See threaded rods torque
SADbot project installing bearings on, best shapes for
in Wind Lantern project. 194–195 transferring, 204
See Wind Lantern overview of, 62 calculations, 74–77
project as power screws, 229 defining power using, 97
stereolithography (SLA), 276 threadlockers, 68 measuring, 90–91
sterling silver, 42 threads per inch, and screws, Measuring Motor Torque
stiffness (k) 53–56 project, 91–93
calculating for 3:1 mechanical advantage, sketching free body
springs, 118 12–13, 15 diagrams when
compression springs 3D design calculating, 84–88
and, 231 computer programs for torsion springs and,
torsion springs and, 235 modeling, 260–261 234–235
torsion springs, 234–235