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Treeboard Mutineers VEX Robotics Competition
Austin Crawford Nicole Grieble Ericson Magsombol
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Overview
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Table of Contents Title Slide Number Problem Statement
Background-Robot Background-Competition Deliverables Scope Timeline Criteria and Constraints Brainstorming Research and Generate Ideas Explore Possibilities Select An Approach Test Plan
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Work Process Bill of Materials CAD Drawings Prototype Testing & Monitoring Refining Competition Changes to Make Summary Lessons Learned
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Problem Statement The goal is to construct a robot within the VEX Clean Sweep competition’s given guidelines using VEX products and ultimately go to a competition and score the most points.
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Background - Robot First Robot (1938) Manufacturing Demonstration
By Willard Pollard and Harold Roselund Sprayed Paint Manufacturing Demonstration MIT Servomechanisms Lab (1959) Regularly Seen 1980’s
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Background- VEX Competition
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Deliverables Robot Engineering Notebook Powerpoint & Final Report
VEX Competition Engineering Notebook Mrs. Brandner Powerpoint & Final Report Mr. Pritchard
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Scope Parts Materials Resources Device to move the robot
Device to lift balls Device to hold balls Materials VEX Protobot Kit VEX Booster Kit VEX Power Pack Resources CAD- Mr. Cotie Technical- Mr. Pritchard Calculations- Mrs. Brandner
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Timeline Plan Date Act. Date Who Task Start Comp 11/17/09 11/18/09
Nicole Problem Statement 11/20/09 Ericson Background 11/19/09 Deliverables 12/01/09 Austin Scope Statement 11/30/09 Nicole/ Ericson Timeline 12/04/09 Crew Identify Criteria and Constraints- Select main 2-4 customer requirements. 12/06/09 12/07/09 Brainstorming- Create a large, generic list of areas that need more research.
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Research and Generate Ideas- Research the selected areas.
12/06/09 12/08/09 12/07/09 Crew Brainstorming- Get more details in select areas that are more important. 12/14/09 12/09/09 12/15/09 Research and Generate Ideas- Research the selected areas. 12/18/09 12/17/09 Research and Generate Ideas- Based off research, create preconceptions that may help the project. 1/04/10 1/15/10 2/10/10 2/16/10 Austin/Ericson Explore Possibilities (requires hands on time)- · Experiment new ideas with VEX parts. · Create sketches. · Develop strategies. 1/18/10 1/20/10 2/17/10 Nicole Select an Approach- Using criteria screens, pros cons, etc...
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Prototype- Finish designing and building the prototype.
1/21/10 1/22/10 1/26/10 1/27/10 Nicole Design Proposal- Test Plan- Based off criteria and constraints, develop test criteria the robot must succeed in accomplishing. 1/25/10 2/12/10 Austin Design Proposal- Work Process- Based off the test plan, generated ideas, and explored possibilities, develop a robot that meets all these needs and expectations. 2/19/10 2/02/10 2/03/10 Design Proposal- Bill of Material- Basically list cost of all materials used. Ericson Design Proposal- Detailed CAD Drawings- Create detailed 2-D and 3-D drawings. 1/15/10 3/01/10 2/01/10 3/26/10 Crew Prototype- Finish designing and building the prototype.
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Competition At Batavia
3/01/10 3/15/10 3/26/10 Crew Testing and Monitoring- Complete the test plan to be sure all criteria are met. 3/19/10 Refining- Based off results of the testing, refine the design to meet criteria easier, faster, more accurately, etc… Crew + Mr. P. Packing EVERYTHING 3/12/10 Notebook Finalize 3/27/10 Competition At Batavia 3/29/10 4/23/10 3/30/10 Final Report and PowerPoint Finalized 4/30/10 Final Report and PowerPoint Due 5/03/10 5/06/10 Presentations
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Criteria and Constraints
VEX Rules and regulations Only one robot Must pass full inspection Cannot damage other robots Must be within 18” x 18” x 18” Only made from official VEX parts Up to 10 motors/servos Can only use one battery On/off switch accessible without moving robot Up to two controllers
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Brainstorming Things to research Design Ideas Competition
Existing Robots VEX Parts Design Ideas Vacuum Sweeper Lobster Claw
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Research Robot Motors Wheels Structural Framing High Torque
Gear Ratios Wheels High Traction Structural Framing Solid Aluminum
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Generate Ideas Existing Designs Scoopers Containers Pushers
Slide under balls rather than grabbing Highly Effective “Garbage Truck” Design Containers “Pick-up Truck” and an Incline “Garbage Truck” dumped over the wall Pushers Difficult to manage balls Gets wedged under robot
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Explore Possibilities
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Select An Approach
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Test Plan Test Criteria How Tested Expected results Actual Results
One Robot Make sure all parts are connected to one unit We will only have one robot Must be 18”x18”x18” Measure the robot The robot fits the requirements Only VEX Parts Inventory every piece used and make sure it corresponds with VEX parts Our robot will only contain VEX parts Only one Microcontroller Count how many microcontrollers we are using We will only have one microcontroller Ten or less motors or servos Count the servos and motors We will have under ten motors and servos
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One 7.2V Robot Battery Pack or the VEX Power Expander, and a 9V backup battery
Count the batteries that are being used and make sure they fit the requirements We will either have one 7.2V Robot Battery Pack or the VEX Power Expander, and a 9V backup battery Up to two handheld controllers Count how many controllers are being used We will have only one handheld controller Access to on/off switch without moving robot Turn the robot on and off without moving the robot at all We will be able to turn the robot on/off without moving the actual robot Move balls over to the competitors side Replicate the wall that will be used in the competition and then use the robot to move balls from one side to another Will be able to move balls Make sure all parts are secure Shake Robot and make sure nothing comes off Nothing comes off Obtain a high score Practice using a practice field 50+ points
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Work Process
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Bill of Materials Part Quantity Unit Cost Total Cost Registration 1
$200.00 Protobot Robot Kit $299.99 Booster Kit Donated Power Pack $49.99 TOTAL: $548.98
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CAD Drawings
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Prototype
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Testing & Monitoring
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Refining
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Competition Overall Our Goals Observations Not entirely successful
Able to get balls over the wall Successful in this aspect Observations Beastly Robots Use of programming (autonomous feature) Omni-wheels
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Changes to Make Add autonomous feature Add Omni-wheels
Starts off competition good Add Omni-wheels Enhanced control Increase walls of bucket area Contains balls better
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Summary
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Lesson Learned
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