Gears, Chains, and Sprockets - VEX Robotics

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PhaseAmazeStandardScience (NSES)Unifying Concepts and Processes: Form and FunctionPhysical Science: Motion and ForcesScience and Technology: Abilities of Technological DesignTechnology (ITEA)5.8: The Attributes of DesignMathematics (NCTM)ConnectionsRecognize and apply mathematics in contexts outside of mathematics.Numbers and OperationsCompute fluently and make reasonable estimates.AlgebraAnalyze change in various contexts.GeometryUse visualization, spatial reasoning, and geometric modeling to solve problems.MeasurementUnderstand measurable attributes of objects and the units, systems, and processes ofmeasurement.Apply appropriate techniques, tools, and formulas to determine measurements.CommunicationCommunicate mathematical thinking coherently and clearly to peers, teachers, andothers.6■Unit 6: Gears, Chains, and Sprockets
Think PhaseOverviewThis phase explains some of the fundamental concepts of gearing. It also covers the differencesbetween spur gears and setups involving sprockets and chain.Phase ObjectivesAfter completing this phase, you will be able to:■■■Identify whether a set of gears causes a speed reduction or a speed increase.Calculate gear ratios and their corresponding speed reduction or increase.Determine the direction an output shaft will rotate based on a known input.PrerequisitesRelated phase resources are:■■Unit 1: Introduction to VEX and Robotics.Unit 5: Speed, Power, Torque, and DC Motors.Required Supplies and SoftwareThe following supplies are used in this phase:SuppliesNotebook and penWork surfaceThink Phase■7
Page 3 and 4: SuppliesSoftwareAn assembled the ge
Page 5: PhaseBuildStandardScience (NSES)Uni
Page 9 and 10: Spur GearsSpur gears have been used
Page 11 and 12: The driving torque applies some for
Page 13 and 14: Idler GearsGears can be inserted be
Page 15 and 16: Compound Gear RatioCompound gears a
Page 17 and 18: Chain DrivesSprockets and chains ar
Page 19 and 20: Create PhaseOverviewThis phase desc
Page 21 and 22: Icon Name DescriptionRectangularPat
Page 23 and 24: Example: Generated GearsIn the foll
Page 25 and 26: Enter data to design the gear set.I
Page 27 and 28: Exercise: Generate Spur GearsIn thi
Page 29 and 30: 12. To check your design again, cli
Page 31 and 32: 9. Press E to start the Extrude too
Page 33 and 34: 4. For Operation, select Cut.2. Exp
Page 35 and 36: 14. Click OK.3. Click again to crea
Page 37 and 38: Extrude the Sketch on the Back Face
Page 39 and 40: 7. For Count, enter 5.8. For Spacin
Page 41 and 42: Insert an iFeatureIn this section o
Page 43 and 44: Exercise: Animate a Gear AssemblyIn
Page 45 and 46: 9. Scroll back to SHAFT-3000:5. Rig
Page 47 and 48: Required Supplies and SoftwareThe f
Page 49 and 50: 2. To complete the next step:■■
Page 51 and 52: 4. To complete the next step:■■
Page 53 and 54: Amaze PhaseOverviewIn this phase, y
Page 55 and 56: f. Set up the test stand between tw
Page 57 and 58:
Figure 4: 36:60 ReductionFigure 5:
Page 59 and 60:
STEM ConnectionsBackgroundThe Unite
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Gears, Chains, and Sprockets - VEX Robotics

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