Radio Shack Mobile Robot manual Steering Motor and Rear Wheels

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Steering Motor and Rear Wheels

Steering of the robot is accomplished using a standard RC servo motor attached to the rear wheels. Read the assembly summary while viewing the drawings.

Summary:

￿￿ Bend both 4” wires into steering linkages with pliers using the drawing as a pattern.

￿￿ Attach the horn to the steering motor with a screw. Turn the horn in both directions to determine the center position. In the center position, the horn should be oriented like the drawing shows.

￿￿ Mount the steering motor to the robot body per the drawing.

￿￿ Mount the rear axles to the robot body using collars. You may have to put 6-32 x 1/4 screws in each collar first.

￿￿ Mount the wheels to the axles using collars.

￿￿ Attach the linkages to the steering motor and to both steering arms.

￿￿ Attach the steering arms to the axles.

￿￿ Straighten the system, put the steering horn in the center of travel, loosen the steering arms and straighten the wheels then retighten the arms.

Full Scale Steering Linkage Pattern

3”

1/4”

1/4”

1/4”1/4”

Steering Motor and Horn

Shown in center position

More drawings on the next page

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Contents Assembly and User Guide ARobot Mobile Robot Connectors About ARobot IntroductionBasic Stamp II Control Computer Feature List What You’ll NeedTechnical Specifications Precautions Component Locator ControllerGlossary of Terms Glossary of Terms Glossary of Terms Assembly Overview Quantity Description Used For PartsAbout Screw, nut, and washer sizes Parts Motor Brackets Paint Primer PaintingSanding Finish CoatSummary WhiskersHow it Works Whisker Detail Full Scale Whisker Wire Pattern Drive Motor and Brackets Encoder Sensor Front Wheel Assembly Steering Motor and Rear Wheels Steering Motor Mounting Wheel and Axle Steering System Controller Board Don’t install batteries yet Battery PackSummary Don’t install batteries yet Body Cable Finishing Up About the Controller Board Basic Stamp II InstallationProgramming USB Port Cable to your PCPC Editor/Downloader Software Programming NoteTest Program TEST.BS2 Steering Adjustment Program STRAIGHT.BS2Programs Wander Program WANDER.BS2About the Controller Board Reset Button Power On/Off SwitchBatteries LED indicators SpeakerPush Buttons and Jumpers switches Drive Motor and EncoderSteering Motor Coprocessor Command Summary Example !1M11200E7RC Servo Motor and Steering Motor Control Coprocessor Communication RulesHexadecimal, Binary, Bytes, Words, etc Serial Port J12 Battery Connector J9Body Connector J8 PinoutPowerful Connector J11 RC Servo Motor Connectors J2-J5Drive Motor Connector J10 Voltage 12 volts Maximum Current 500ma PinoutExpansion Connector J1 Expansion Port RC Servo Motor SignalsExpansion Port Circuit Examples Digital Inputs Switch Input ExampleDigital/Power Output Sensor Input ExampleAnalog Inputs Basic Stamp II light sensor example codeCoprocessor Network Expansion CommunicationsUsing ARobot’s controller as a coprocessor Using Other ControllersCabling between ARobot’s controller and another controller Suggested Reading Component Suppliers Stock Drive Products Sava IndustriesSmall Parts SuperCircuitsInternet Robot Resources Web SitesInternet News Groups Newsgroup NameDescriptionTroubleshooting Warranty Information Arrick RoboticsRobotics.com