Build Your Own Combat Robot

Microcontroller suppliers, 350
Microcontrollers, 179
miscellaneous, 268–269
MIG (metal inert gas)
welders, 186
MIG welding, 196–197
Mild steel, 188
Miles per hour (MPH), 106
Miles, Pete, 316–327
Military uses treads in
tanks, 45
Mini sumo, 281–298
autonomous mini
sumo, 286
building mini sumo, 284
edge detector, 286–290
mini sumo body
assembly, 284–285
modifying R/C servo for
continuous rotation,
281–283
object detectors, 290–292
performance
improvements, 297
remote-control mini
sumo, 285–286
sensor integration,
293–296
various mini sumo
robots, 297–298
MIT (Massachusetts Institute
of Technology), 268
Model race cars, R/C (radio
controlled), 48
Modeling, layout and,
319–321
Modems
miscellaneous radio,
175–179
radio, 178–179
Modifying R/C servo for
continuous rotation,
281–283
Moment, bending, 50
MOSFETs (Metal Oxide
Semiconductor Field Effect
Transistors), 142, 340
Motor constants,
determining, 67–68
Motor Controller, OSMC,
153–155
Motor controllers, 299–300
Motor, electric, 62–75
determining motor
constants, 67–68
power and heat, 68–72
pushing limits, 72–75
Motor heating, 72
Motor housings, adding,
317–319
Motor operation and
voltage, 69
Motor performance chart,
typical, 65
Motor selection and
performance, 61–77
electric motor basics,
62–75
internal combustion
engines, 76–77
Motor sources, 74–75
electric, 344–346
Motor speed
constant, 63
controllers, 26
decreases as motor torque
increases, 65
Motor torque
constant, 63
and frictional forces, 111
Motor torque increases, motor
speed decreases as, 65
Motors, 299
AC (alternating
current), 62
acquiring electric, 74
best places to get
electric, 74
bi-directional control
of, 143
brushless PMDC, 73
choosing, 70
conditions under which
they will operate, 70
controlling, 132
cordless drill, 75
current draw
specifications from
robot, 26
DC (direct current), 63
doubling voltage and
heat generated, 70
drill, 99, 194
efficiency of, 73
heat can destroy, 72
high-performance, 73
how they will perform, 62
internal combustion, 62
keeping cool, 113
minimum amount of heat
and running, 69
most combat robots use
electric, 76
mounting, 112–113
noise from, 171
output power from, 70
permanent magnet DC, 67
place greatest constraints
on design, 62
PMDC (permanent
magnet direct
current), 62
securing, 316–317
speed and efficiency, 69
starting, 63
that come without
data sheets, 80
thermal consideration
for, 113–114
Index 369