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Explore the concept of a Rube Goldberg device where one input force triggers a series of tasks inefficiently but creatively. Learn about torque, spring force, and energy types used. Follow the building process using tools like circular saw and power drill to create a chain reaction starting with a golf ball rolling down a board. Encounter challenges like varying input force and direction, unstable ramps, and unforeseen obstacles, providing a fun and educational experience. See the device in action as it triggers movement through different components until a banner unfurls. Despite some issues, the project showcases innovation and problem-solving skills in a hands-on setting.
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D1 Team 3 Blake Hollis Jordan Livesay Kellen Catani Sean Yu Rolling Down Rocky Top
Basics • What is it? • Rube Goldberg device • One input force = one task • Inefficient and complicated • Bill of Materials • Concepts used • Torque/ Rotational Motion • Spring Force • Potential/Kinetic Energy • Translational Energy
Building Process • Tools used • Circular saw • Power Drill • Jigsaw • Hammer/Nails • Tape Measurer
Process • Golf ball lies on top of a board 0.2286 meters • Trim piece connects to the top and to the bottom with another board at a height of 0.0635m. • The golf ball will roll to the bottom of the trim piece with a velocity of 2.18m/sec. and strike a shaft (0.0635m) • Shaft speed = 34.3 rad/sec • Second ball will hit a block • Block speed = 1.01m/s
Process (Cont.) • Block falls over and starts dominoes • Dominoes speed = .54 m/s • Dominoes trigger mousetrap • Mousetrap releases paperclip which allows banner to unfurl.
Calculations / Issues • Issues • Absence of friction or losses of energy • Input force varies each time as well as direction of force • Ramps not sturdy • Nailed ramp • Paperclip did not release • Changed angle of pull
Summary • After issues were solved, device worked fairly efficiently • Fun creative use of common objects • Some issues could not be resolved but we found ways around them