Ping%20Pong%20Ball%20Launcher

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Ping Pong Ball Launcher

• Group 4
• Drzewianowski, Kati
• Hill, Jessica
• Rembold, Matt
• Winograd, Ted

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The Matter at Hand

• 2001 ASEE National Design Competition
• Ping-pong ball launching device
• Fit within a 3ft x 3ft x 3ft cube (ready to
  launch)
• Student produced and powered (no flames)
• Must launch one ball at a time
• Must hit target from 15, 20, and 25 feet
• Target is 3ft x 3ft at a 30 degree angle with an
  18in diameter hole in the center

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So You Already Made It Existing Ideas

• Pitching devices
• Tennis balls
• Baseballs
• Childrens toys
• Slingshots
• Nerf guns
• Catapults

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Solution Proposals

• Mouse trap
• Rat trap
• Spring launcher
• Catapult
• Air pump
• Sling shot

• Robot
• Trained dog
• Small child

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Mouse and Rat Traps

• A device powered by the spring and the firing
  action of a household rodent trap
• Spring constants and parabolic motion would be
  calculated to make the firing range and direction
  precise.

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Spring Launcher

• Spring powered barrel (similar to pinball
  machine)
• Directed through tubing
• Angles adjustable for different distances
• Spring constants and parabolic motion would be
  calculated to make the firing range and direction
  precise.

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Catapult

• Powered by source of tension (ex. Spring)
• Button-released lever arm
• Distance controlled by stopping lever arm

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Air Pump

• Powered by compressed air
• Launched by releasing pressure
• Directed through tubing

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Sling Shot

• Powered by bungee cords
• Angles and pullback distance manually adjustable
• Spring constants and parabolic motion would be
  calculated to make the firing range and direction
  precise.

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Keeping Our Priorities Straight
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Analysis of Options
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The Final Decision
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The Building of
14
Our Project
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An Afterthought

• Upon trial an aiming device became necessary

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New Improved!

• A dowel with marked guidelines customizes the
  launcher for this project

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Lights, Camera, ACTION!
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If only

• With more time
• Further research
• More precision and accuracy
• With more money
• Better/different materials
• With more resources
• Ability to compute trajectories
• Variety of tools allows wider range of materials

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And yet

• Design advantages
• Relatively inexpensive
• Flexibility in construction
• Adaptable to user preference
• Tolerance in dimensions