Gears, Chains, and Sprockets - VEX Robotics

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The drive is provided by the motor (1) whichdrives the shaft (2). The two small gears (3)then drive the arm mechanism.5. Right-click Drive this Constraint (0.00 deg).Click Suppress to turn on suppress. A checkmark is displayed next to the option.3. Right-click the end of the shaft. Click Find inBrowser.6. In the graphics window, click and drag thesmall gear. The large gear and the armmechanism also move.The shaft is highlighted in the browser. In thisexample, it is SHAFT-3000:5.4. In the browser, expand SHAFT-3000:5. LocateDrive this Constraint (0.00 deg). This is a zerodegree angle constraint between the shaftand the frame.7. In the browser, right-click Drive thisConstraint (0.00 deg). Click Suppress to turnoff suppress. A check mark is displayed nextto the option.8. On the ViewCube, click Home.NOTE: If the arm assembly does not return tothe position shown, suppress the constraintagain, drag the arm close the position shown,and then unsuppress the constraint.44■Unit 6: Gears, Chains, and Sprockets
9. Scroll back to SHAFT-3000:5. Right-click Drivethis Constraint (0 deg). Click Drive Constraint.13. Click Cancel. The arm mechanism returns tothe original position.14. Close the file. Do not save changes.10. In the Drive Constraint dialog box, click More.11. In the Drive Constraint dialog box:■For Start, enter -30.■For End, enter 30.■Under Increment, enter -2.■Under Repetitions, select Start/End/Start.■Under Repetitions, enter 10.12. Click Forward.NOTE: The start and end values set a range ofsixty degrees, but the arm does not seem tomove that much. This is because theconstraint is driving the small gear.Create Phase■45
Page 3 and 4: SuppliesSoftwareAn assembled the ge
Page 5 and 6: PhaseBuildStandardScience (NSES)Uni
Page 7 and 8: Think PhaseOverviewThis phase expla
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: Exercise: Animate a Gear AssemblyIn
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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