Autodesk's VEX Robotics Curriculum Unit 5: Speed, Power, Torque, And .
Autodesk's VEX Robotics Curriculum Unit 5: Speed, Power, Torque, and DC Motors 1
Overview In Unit 5: Speed, Power, Torque, and DC Motors, you build a VEX test stand winch that enables you to learn key engineering concepts and principles so you can directly apply mathematics and science to robotics. The test stand will be used again and enhanced in Unit 6: Gears, Chains, and Sprockets. The concepts regarding speed, power, torque, and DC motors have countless real-world applications. In STEM Connections, we present one application involving the operation of a free fall amusement park ride. After completing the Think and Build phases, you see how the concepts of speed, power, torque and DC motors come into play in the real world. Unit Objectives After completing Unit 5: Speed, Power, Torque, and DC Motors, you will be able to: Demonstrate the physical concepts of speed, force, torque, power, acceleration, and characteristics of DC Motors. Create and define characteristics of a shaft using Autodesk Inventor Professional 2011 software. Test a VEX motor and build a simple winch. Determine and calculate the free speed and stall torque of a VEX motor. Prerequisites and Resources Related resources for Unit 5: Speed, Power, Torque, and DC Motors are: Unit 1: Introduction to VEX and Robotics Unit 2: Introduction to Autodesk Inventor Unit 3: Building a Protobot Unit 4: Microcontroller and Transmitter Overview Key Terms and Definitions The following key terms are used in Unit 5: Speed, Power, Torque, and DC Motors. 2 Term Definition Acceleration A change in speed over time. Chamfer A placed feature that bevels a part edge and is defined by its placement, size, and angle. DC motor An electric rotating machine energized by direct current and used to convert electric energy to mechanical energy. Direct current (DC) An electric current flowing in one direction only. Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
Term Definition Force Accelerations are caused by forces. For example, when a robot is accelerating it does so because of the force its wheels exert on the floor Keyway A slot for a key in the hub or shaft of a wheel. This permits the shaft and wheel to turn together. Power Energy that is produced by mechanical, electrical, or other means and used to operate a device. - OR - The time-rate of doing work, measured in watts or less frequently horsepower. Relief An undercut on a shaft. Typically used between the shoulder of a shaft and a threaded section. This makes it easier to cut a thread on a shaft. Shaft Often referred to as a drive shaft. A mechanical device for transferring power from the engine or motor to where it is wanted. Speed Measure of how fast an object is moving, that is, how much distance it will travel over a given time. Torque Torque is the application of force where there is rotational motion. Work The measure of a force exerted over a distance. Wrench flat Flat surfaces cut on opposite sides of a shaft. These flats are sized for standard wrench openings and allow for assembly of the shaft. Required Supplies and Software The following supplies and software are used in Unit 5: Speed, Power, Torque, and DC Motors: Supplies Software One VEX Transmitter Autodesk Inventor Professional 2011 One VEX Microcontroller One 7.2V VEX Battery One assembled VEX motor test stand from the Unit 5: Speed, Power, Torque, DC Motors Build Phase One zip tie Notebook and pen Overview 3
Supplies Software Work surface One Stopwatch 36” of 1/8” braided nylon and polyester cord, or equivalent rope/string Set of masses or other weights Small storage container for loose parts Required VEX parts The following VEX parts are required in Unit 5: Speed, Power, Torque, and DC Motors Build Phase. 4 Quantity Part Number Abbreviation 4 BEAM-1000 B1 2 BEAM-2000 B2 1 BEARING-BLOCK BB 3 BEARING-FLAT BF 1 DRIVE-WHEEL TS 1 DRIVE-WHEEL TS15 6 NUT-832-KEPS NK 2 SCREW-632-0500 SS4 8 SCREW-832-0250 S2 4 SCREW-832-0500 B4 6 SCREW-832-0750 S6 1 SHAFT-4000 SQ4 2 SHAFT-COLLAR COL 2 SPACER-THICK SB2 12 SPACER-THIN SP1 Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
Quantity Part Number Abbreviation 15 TANK-TREAD-LINK TL 1 VEX - MOTOR MOT 1 VL-CHAN-121-15 RevA C15 2 VL-CHAN-151-25 RevA CW25 Academic Standards The following national academic standards are supported in Unit 5: Speed, Power, Torque, and DC Motors. Phase Academic Standard Think Science (NSES) Unifying Concepts and Processes: Form and Function Physical Science: Motion and Forces Science and Technology: Abilities of Technological Design Technology (ITEA) 5.8: The Attributes of Design 5.9: Engineering Design 6.12: Use and Maintain Technological Products and Systems Mathematics (NCTM) Connections: Recognize and apply mathematics in contexts outside of mathematics. Measurement: Understand measurable attributes of objects and the units, systems, and processes of measurement. Overview 5
Phase Academic Standard Create Science (NSES) Unifying Concepts and Processes: Form and Function Physical Science: Motions and Forces Science and Technology: Abilities of Technological Design Technology (ITEA) 5.8: The Attributes of Design 5.9: Engineering Design 6.12: Use and Maintain Technological Products and Systems Mathematics (NCTM) Numbers and Operations: Understand numbers, ways of representing numbers, relationships among numbers, and number systems. Algebra Standard: Understand patterns, relations, and functions. Geometry Standard: Use visualization, spatial reasoning, and geometric modeling to solve problems. Measurement Standard: Understand measurable attributes of objects and the units, systems, and processes of measurement. Build Science (NSES) Unifying Concepts and Processes: Form and Function Physical Science: Motion and Forces Science and Technology: Abilities of Technological Design Technology (ITEA) 5.8: The Attributes of Design 5.9: Engineering Design 6.12: Use and Maintain Technological Products and Systems Mathematics (NCTM) Connections: Recognize and apply mathematics in contexts outside of mathematics. Measurement: Understand measurable attributes of objects and the units, systems, and processes of measurement. Amaze Science (NSES) Unifying Concepts and Processes: Form and Function Physical Science: Motion and Forces Science and Technology: Abilities of Technological Design Technology (ITEA) 5.8: The Attributes of Design Mathematics (NCTM) Connections: Recognize and apply mathematics in contexts outside of mathematics. 6 Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
Think Phase Overview This phase explains some of the fundamental concepts of physics that apply to VEX Robotics. It also covers the basics of DC Motor Theory. Objectives After completing this phase, you will be able to: Describe the physical concepts of: Speed Force Torque Power Acceleration List the four primary characteristics of DC Motors. Prerequisites and Resources Related phase resources are: Unit 1: Introduction to VEX and Robotics. Required Supplies and Software The following supplies are used in this phase: Supplies Notebook and pen Work surface Think Phase 7
Research and Activity To understand the performance of a robot, one must first understand the basic concepts of physics. Speed The first concept is the concept of speed. Speed is a measure of how fast an object is moving; that is, how much distance it will travel over a given time. This measure is given in units distance per time (common examples include miles per hour or feet per second). Rotational Speed Speed can be expressed rotationally as well. This refers to how fast something is moving in a circle. It is measured in units of angular distance per time or rotational cycles per time. Common examples include degrees per second or revolutions per minute (RPM). Acceleration A change in speed over time is known as acceleration; the higher the acceleration the faster the change in speed. If something is moving at a constant speed, it is not accelerating. Force Accelerations are caused by forces. When you press on something, you are exerting a force on it. When a robot is accelerating, it does so because of the force its wheels exert on the floor. Force is measured in units such as pounds and newtons. 8 Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
Torque Force directed in a circle is called torque. Torque is a spinning force; however, in the instance of a wheel, this spinning force creates a linear force at its edge. This is how you define torque: as a linear force at the edge of a circle. Torque is described by the magnitude of the force multiplied by the distance it is from the center of rotation (Force x Distance Torque). Torque is measured commonly in units of inch-pounds and newton-meters. If you know how much torque is applied to an axle with a wheel on it, you can find out how much force the wheel is applying on the floor. Force Torque / Wheel Radius In this case, the wheel radius would be the distance from the center of rotation. Work Work is the measure of a force exerted over a distance. If I lift something 5 feet, it requires less work than if I lifted it 10 feet. It can also be thought of as a change in energy. Think Phase 9
Power Power is another concept important in robotics. Most people are more familiar with power as an electrical term, but it is part of mechanical physics as well. Power is defined as the rate that work is performed. How fast can you do your work? In robotics, it is handy to think of power as a limit. If you need to lift a 10 lb. weight (exerting a 10 lb. force) the amount of power you have available limits how fast (the rate) at which you can lift it. If you have lots of power available, you will be able to lift it quickly; if you do not have a lot of power, you will lift it slowly. Power can be defined as force multiplied by velocity. (How fast can you push with a known force?) Power is frequently measured in terms of watts. Power Force [Newtons] x Velocity [Meters / Second] 1 Watt 1 (Newton x Meter)/ Second The descriptions above only scratch the surface of these physical properties. The concepts discussed above are significantly more advanced that touched upon here. However, the basic understanding is enough to apply them. DC Motors DC (Direct Current) motors convert electrical energy into mechanical energy. Motors can have very different characteristics depending on their manufacture. When a voltage is applied to the motor, it outputs a torque inversely proportional to its speed. (That means the faster the motor is going the LESS torque it outputs, and the slower the motor is going the MORE torque it outputs.) The motor will also draw current proportional to this torque (more torque means more current draw). You can think of the motor as working to overcome a load. With NO load on the motor, it will spin very fast and draw almost no current. As the load increases on the motor it must output more torque to overcome the load, and as it increases the torque it draws more current. Eventually if enough load is placed on the motor, it will stop moving or “stall." There are four main characteristics which define DC motor performance and define the relationships described above: Stall Torque (N*m): The amount of load placed on a motor that will cause it to stop moving. Free Speed (RPM): The maximum rotational speed a motor will run when it is under no load. Stall Current (Amp): The amount of current a motor will draw when it is stalled. Free Current (Amp): The amount of current a motor will draw when it is under no load. These four characteristics change proportionally depending on how much voltage is applied to the motor. Below is a graph which shows these characteristics for a given voltage: 10 Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
Based on the above relationships, you can see how the concept of power comes into play. With a given loading, the motor can spin only at a certain speed. Since the relationships shown above are linear, it is a simple matter of plotting the torque-speed and torque-current graphs by experimentally determining (2) points on each graph. Designing with DC Motors Like all motors, the VEX Continuous Rotation Motors have certain limitations. They have a limited amount of power to output. If the motor draws more than 1 amp of current, it trips its internal thermal limiter; designers need to use the motor so it will not be placed under loads greater than this. Once you determine what load the motor will be operating under (how heavy an arm is it lifting?), and you ensure that it is under the limit, you can calculate how fast the arm will move at this loading. The key thing to remember is that motors have a limited amount of power output. There is a balance between speed and torque; you cannot have both at the same time. Think Phase 11
Create Phase Overview In this phase, you learn about creating shaft components in the context of an assembly, using predefined shape elements to quickly create the geometry. When you use the Shaft Generator to create and edit a shaft design, predefined shapes help ensure that the model conforms to industry standards. Editing your shaft design is easier and quicker than editing shafts that are created using sketched and placed feature-based modeling techniques because of the ease-of-use and consistent modeling techniques offered with the Shaft Generator. The following image shows a common use of shafts in a design. In the motor assembly, shafts are required to transmit power from the electric motor to the gear assembly. Objectives After completing this phase, you will be able to: Define the characteristics of a shaft created with the Shaft Generator. Describe the options available for creating shafts using the Shaft Generator. Create shafts using the Shaft Generator. Prerequisites and Resources Before starting this phase, you must have: A working knowledge of the Windows operating system. Completed Unit 1: Introduction to VEX and Robotics Getting Started with Autodesk Inventor. Completed Unit 2: Introduction to Autodesk Inventor Quick Start for Autodesk Inventor. 12 Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
Technical Overview The following Autodesk Inventor tools are used in this phase: Icon Name Description Shaft Generator Use to design the shape of a shaft, add and calculate loads and supports, and other calculation parameters. Perform a strength check and generate the shaft in the Autodesk Inventor model. The shaft is assembled from single sections (cylinder, cone, and polygon) including features (chamfers, fillets, neck-downs, and so on). Thread Use to create threads on existing model features. Return Use Return to quit in-place editing and quickly return to the desired environment. The destination depends on which modeling environment you are working in. Constrain Assembly constraints determine how components in the assembly fit together. As you apply constraints, you remove degrees of freedom, restricting the ways components can move. Required Supplies and Software The following software is used in this phase: Software Autodesk Inventor Professional 2011 About the Shaft Generator You use the Shaft Generator to create and edit shaft designs by combining individual shaft sections in the assembly environment. The shaft sections provided with this tool include the most common geometry found in shafts. You can base your shaft designs on data you input, part geometry in the assembly, and load calculations provided in the Shaft Component Generator dialog box. The following image shows a shaft design for an electrical motor. A variety of input data is used to design the shaft. In addition to supporting the loads, it needs to fit with the threaded hole on the existing motor. Create Phase 13
Definition of the Shaft Generator The Shaft Generator provides a series of tools that enable you to design and edit a shaft section by section. As you design the shaft, you can add multiple features to fully define each section. You can also perform calculations and create output graphs based on the loads applied to the shaft. The following image shows the Calculation tab of the Shaft Component Generator dialog box. 14 Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
Example Shaft from the Shaft Generator The following image shows a shaft design that was created using the Shaft Generator. Multiple features were added to the shaft sections to perform the tasks of rotating and locating the various parts that will be connected to the shaft. The features created in the Shaft Generator on this design include: Cylindrical diameter change Keyway Relief Chamfer Wrench flat Shaft Component Generator Dialog Box The Shaft Component Generator dialog box offers multiple tabs for designing and analyzing a shaft. You use the Design tab to create your shaft design, and the Calculation and Graphs tabs to analyze the shaft while you design. In addition to the dialog box, the graphics area displays a 3D shaft preview based on the current settings in the dialog box. You can also quickly modify each section of your shaft using the grips provided on the 3D preview. The following image shows the Shaft Component Generator dialog box and the interactive 3D shaft preview. The four default sections shown are provided when you first use the tool, enabling you to immediately begin your shaft design. Create Phase 15
16 Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
Shaft Component Generator Dialog Box Options The following options are available for designing, locating, calculating, and saving shaft designs. Design tab: Design a shaft. Calculation tab: Set material, loads, and supports to calculate the shaft. Graphs tab: Display a diagram of shaft loads. Locate the shaft in the assembly. Define the axis, start plane, and orientation. Add cylinder, cone, or polygon sections to your shaft. Expand all, collapse all, or set options for the section tree display. Define each section of your shaft design. Specify shape and size of the section. Add features to each section. Drag to reorder a section. Specify the size of the base feature. Expand the Design tab and display information regarding each shaft section in a text format. Expand the Design tab to display calculation messages. Toggle the display of the Shaft Component Generator dialog box to display the Templates library. Create Phase 17
Creating Shafts The Shaft Component Generator tool creates a parametric shaft part using defined and consistent modeling methodologies. Because the shaft component is a parametric model, you can edit the model and add additional sketched or placed features, depending on your design needs. In the following image, a shaft is created using the Shaft Component Generator. Currently, a chamfer is being added to the first segment of the shaft. Sections Area You use the Sections area of the Shaft Component Generator dialog box to control the shape and size of each shaft segment and to add bores to either end of the shaft. The Sections drop-down list has three options to define the working location: Sections, Bore on the Left, and Bore on the Right. The default Sections option enables you to add multiple sections to the shaft. You can add cylinders, cones, and polygons. Each time that a section is added, a new row is added to the section tree for further refinement. The Bore on the Left and Bore on the Right options enable you to add internal shaft features. You can add cylindrical or conical bores to the shaft. Each time that a bore is added to the shaft, a new row is added to the section tree for further refinement. 18 Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
The following options are available for designing shafts in the Sections area of the Shaft Component Generator. Section Tree The Section tree area of the Shaft Component Generator dialog box is where the majority of the shaft design is accomplished. Each Section tree row is broken down into four groups. After the shape and size of the shaft section have been specified, you can add features to the section based on options available from these four groups. The options that are available vary depending on the shape selected, and other options already applied. The following options are available in the Section tree of the Shaft Component Generator dialog box. Add features to the left edge of the shaft section. The features that are available depend on the type of section. Change the current section type. Add features to the right edge of the shaft section. The features that are available depend on the type of section. Add features to the shaft section. The features that are available depend on the type of section. Create Phase 19
Shaft Features The following features are available for shaft designs. 20 Shaft Feature Feature Description Cylinder Add cylindrical shaft sections. Cylinders are a base feature for shaft design. Additional features such as keyways, retaining rings, through holes, grooves, reliefs, and wrenches can be added to shaft sections. The length and diameter of cylinders can be changed using grips. Polygon Add a section to a shaft with three to 50 flat sides. Polygons are a base feature for shaft designs. Through holes can be added to polygon sections. Use grips to change the length and the section diameter, or to rotate the section. Cone Add a cone shape to a shaft. The cone is a base feature for shaft design. Fillets and chamfers can be added to cone sections. If the cone section is in between two other shaft sections, both cone diameters are initially controlled by the adjacent sections. To change either diameter of the cone section independently, you must first unlock the variables controlling their size using the Edit option. You can adjust the length and both diameters with grips. Cylindrical Bore Add cylindrical internal bores to the shaft. Internal bores can be added to either end of the shaft and can be used in conjunction with conical bores. You can adjust the length and diameter with grips. Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
Shaft Feature Feature Description Conical Bore Add conical bores to the shaft. Conical bores can be added to either end of the shaft and can be used in conjunction with cylindrical bores. The length and both diameters can be adjusted with grips. Chamfer Add an angle break at the end of shaft section, or provide a transition between two shaft sections. Chamfers are constructed using one of the following three methods: Distance, Distance and Angle, and Two Distances. Fillet Add a rounded shape to the outside edge of a shaft section, or provide a transition between different shaft sections. Lock Nut Groove Add a groove, chamfer, and optional thread to the end of a shaft. The Locknut Groove dialog box enables you to select from a list of standard locknut grooves, or you can define custom settings. Relief Define a relief in a shaft section. A relief is typically used to provide an undercut for clearance between two shaft sections. You select a relief from a series of standard shapes. The Relief dialog box enables you to define custom values for the relief selected. Create Phase 21
22 Shaft Feature Feature Description Keyway Groove Add a slot to a shaft section. A keyway groove is used to lock rotation between the shaft and added components. The keyway sizes are generated from industry standards. The Keyway dialog box enables you to create a custom keyway and to insert parts from the Content Center. Retaining Ring Add a square groove around the diameter of a cylindrical shaft section. The default sizes are based on industry standards. The Retaining Ring Groove dialog box enables you to enter custom values and insert parts from the Content Center. Wrench Opening Add a wrench opening to a cylindrical shaft section. This opening makes assembly of the shaft much simpler. The opening should match a standard wrench size. Through Hole Add a through hole to a cylinder or polygon shaft section, perpendicular to the centerline of the shaft. This hole can be used for inserting a pin. Groove Add a radius groove to a cylindrical shaft section. This groove can be used to locate an o-ring. Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
Exercise: Design a Shaft In this exercise, you use the Shaft Generator to design a shaft for a motor. 5. 6. Click OK. A shaft preview is placed in the assembly. The default dimensions are too large. You modify the design in the following steps. On the ViewCube, click Home to view the motor and the shaft preview. The completed exercise Place the Shaft in the Assembly Using the Shaft Generator, you create a shaft with two sections. On the first section, you add a keyway and a flat for a wrench. You size the second section for a thread and add a relief. 1. 2. Make IFI Unit5.ipj the active project. Open motor.iam. 7. 3. On the Design tab, Power Transmission panel, click Shaft. 4. On the Shaft Component Generator dialog box, click Resets Calculation Data. Note: The shaft may not be placed in your assembly as shown. The final shaft design will still be the same. Under Sections, select Cone 100/ 65 x 100. Create Phase 23
4. For L, enter 45. 9. Click Yes. 10. Repeat this workflow to delete Cylinder 55 x 100. 5. 6. Click OK. From the Second Edge Features list, select No Feature. Design the First Section on the Shaft 7. From the Section Features list, select Add Keyway Groove. The default dimensions are acceptable. 8. From the Section Features list, select Add Wrench. Click Feature Properties. 8. Click Delete Section and Features. In this section of the exercise, you add a keyway and a flat for a wrench. 1. 2. 3. 24 Select Cylinder 50 x 100. Click Section Properties. For D, enter 10. 9. Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
10. Under Position, select Measure from Second Edge. 6. Zoom into the modified shaft design preview. 7. From the First Edge Features list, select No Feature. From the Section Features list, select Add Relief - D (SI Units). 11. For x, enter 2. 12. For L, enter 8. 13. For W, enter 7. 8. 14. Click OK. Design the Second Section on the Shaft In this section of the exercise, you size the second section for a thread and add a relief. 1. 2. 3. 4. Select Cylinder 80 x 100. Click Section Properties. For D, enter 8. For L, enter 9.5. 5. Click OK. 9. Click Feature Properties. 10. For x, enter 0.4. Click OK. 11. From the Second Edge Features list, select Thread. Create Phase 25
12. For LT, enter 8.7. Click OK. Complete the Assembly You now constrain the shaft to the motor assembly. 13. Click OK twice to create the shaft. 14. Click to place the shaft in the assembly. 26 1. 2. On the ViewCube, click Home. On the Assemble tab, Position panel, click Constrain. 3. 4. Under Type, click Insert. Select the outside edge of the shaft. Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
5. Select the edge of the threaded hole. 6. Click OK. 7. 8. Save the file. Close the file. Create Phase 27
Build Phase Overview In this phase, students assemble a test stand that can be used to determine the specifications of a VEX motor. The completed test stand is shown in the following image. Phase Objectives After completing this phase, you will be able to: Test the specifications of a VEX motor. Build a simple winch. 28 Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
Prerequisites and Resources Before starting this phase, you must have: Completed Unit 5: Speed, Power, Torque, and DC Motors Think Phase. Disassembled Protobot used in Unit 3: Building a Protobot. Related phase resources are: Unit 1: Introduction to Vex and Robotics. Unit 3: Building a Protobot. Required Supplies and Software The following supplies are used in this phase: Supplies One disassembled Protobot used in Unit 3: Building a Protobot Notebook and pen Work surface Small storage container for loose parts Optional: Autodesk Inventor Professional 2011 Required VEX parts The following VEX parts are required in this phase: Quantity Part Number Abbreviation 4 BEAM-1000 B1 2 BEAM-2000 B2 1 BEARING-BLOCK BB 3 BEARING-FLAT BF 1 DRIVE-WHEEL TS 1 DRIVE-WHEEL TS15 6 NUT-832-KEPS NK Build Phase 29
Quantity Part Number Abbreviation 2 SCREW-632-0500 SS4 8 SCREW-832-0250 S2 4 SCREW-832-0500 B4 6 SCREW-832-0750 S6 1 SHAFT-4000 SQ4 2 SHAFT-COLLAR COL 2 SPACER-THICK SB2 12 SPACER-THIN SP1 15 TANK-TREAD-LINK TL 1 VEX - MOTOR MOT 1 VL-CHAN-121-15 RevA C15 2 VL-CHAN-151-25 RevA CW25 Activity VEX Motor Test Stand In this activity, you assemble a test stand that will be used to test the specifications of a VEX motor. This stand will be reused in later units for further activities. As you work on building this project, have some of your team members focus on expanding their expertise using Autodesk Inventor software. Later in the curriculum, you will be challenged to come up with your own creative solutions for robot design. You will save time and maximize your ability to create winning solutions if your team understands how to leverage the power of digital prototypes using Inventor. Note: Team members can download a free version of Autodesk Inventor Professional software to use at home, so you can come to class prepared to build and test your best ideas! To do this, simply join the Autodesk Education Community at www.autodesk.com/edcommunity. 30 Autodesk's VEX Robotics Unit 5: Speed, Power, Torque, and DC Motors
1. Wrap fifteen Tank Tread Links [TL] around a
Required VEX parts The following VEX parts are required in Unit 5: Speed, Power, Torque, and DC Motors Build Phase. Quantity Part Number Abbreviation 4 BEAM-1000 B1 2 BEAM-2000 B2 1 BEARING-BLOCK BB 3 BEARING-FLAT BF 1 DRIVE-WHEEL TS 1 DRIVE-WHEEL TS15 6 NUT-832-KEPS NK 2 SCREW-632-0500 SS4 8 SCREW-832-0250 S2 4 SCREW-832-0500 B4 6 SCREW-832 .
The VEX Robotics Game Design Committee, comprised of members from the Robotics Education & Competition Foundation, Robomatter, DWAB Technolog y , and VEX Robotics. VEX Robotics Competition Turning Point: A Primer VEX Robotics Competition Turning Point is played on a 12 ft x 12 ft foam-mat, surrounded by a sheet-metal and polycarbonate perimeter.
The VEX Robotics Game Design Committee, comprised of members from the Robotics Education & Competition Foundation, Robomatter, DWAB Technologi es, and VEX Robotics. VEX Robotics Competition In the Zone: A Primer VEX Robotics Competition In the Zone is played on a 12 ft x 12 ft foam-mat, surrounded by a sheet-metal and lexan perimeter.
The VEX Robotics Competition is a competition for middle & high school students (aged 11-18). Participants design a robot using the VEX EDR . year's VEX U game is typically similar in structure and rules to its corresponding VEX Robotics Competition game. However, a larger emphasis is placed on programming, sensors, and advanced build
(1) VEX Robotics Construction Kit and Cortex Controller Figure 1: Chassis of the VEX Robot Figure 2: Ultrasonic Sensor To program the VEX Robots, the ROBOTC Integrated Development Environment (IDE)[7], which is designed for VEX hardware, was utilized. The programming language is a simplified version of C language.
Completed VEX V5 Clawbot The VEX V5 Clawbot is an extension of the VEX V5 Speedbot that can be programmed to move around and interact with objects. Parts Needed: Part 1 . Kit to compete in the 2019-2020 VEX Robotics Competition game Tower Takeover. Notice where Stack's battery and brain are positioned. Notice that its manipulators are
Autodesk Inventor Routed Systems Autodesk Maya Animation Autodesk Maya Modeling Autodesk Moldflow Adviser Autodesk Moldflow Insight Autodesk Nastran In-CAD Autodesk Navisworks Manage Autodesk Navisworks Simulate Autodesk ReCap . SketchUp Basics B
2.2: VEX Robotics Design System The VEX Robotics Design System, which was created by Innovation First, Inc. It has been designed to nurture creative advancement in robotics and knowledge of science, technology, engineering, and math (STEM) education. The VEX system provides teachers and students with an affordable, robust,
ROBOTC Natural Language - VEX Cortex Reference: 2011 Carnegie Mellon Robotics caem For use it VEX Robotics Sstems ROBOTC Natural Language - VEX Cortex Reference .
