1. ET 494 Instructor: Dr. Koutsougeras By Scott Dauzat Advised by Dr. Ma

2.  Design and build a safe, portable ball launcher  Easy use for dog and operator  Lightweight  Inexpensive  Launch a tennis ball automatically or manually

3.  Motor - A 12 volt DC motor will be used create power for the launching arm.  Gear Box –A gearbox will be attached to the motor shaft to increase the torque and lower the rpm’s.  Lever – Mechanism attached to the output shaft of motor which will strike the ball.  Circuit – Consists of micro switches to engage and disengage power to the system. Relay to take the load. Switch for auto and manual. Wireless remote system.

4. Portable and Lightweight No Electricity Required One person operation Fun for your pets

5. Safety Reliability Minimizing Cost Keeping weight to a minimum

6.  2004 Chevrolet Silverado power window motor  Small, Lightweight, High Torque

7.  Attached to the output shaft of the gearbox.  Spring attached to lever arm and system  Both turn at the same time  Center of rotation  Spring creates high velocity  Lever strikes ball

8. Spring Attachment

9.  The double pole switch used for the circuit diverts the current in the circuit which allows for automatic or manual operation.

10.  The micro switch that activates the system will be wired in the normally open position.  The second micro switch that shuts the motor off will be wired in the normally closed position.

11.  Allows the operator to press the button on the remote to activate the system.  The system will not activate unless there is a ball placed in the device.

13.  12 Volt  5 Amp

14.  Motor - $33.46  Micro Switches - $6.00  Battery - $24.95  Wireless Remote Switch - $8.99  Lever - $3.96  Bolts - $5.87  Total - $83.23

15.  September 3, 2013: Came up with Electronic Ball Thrower idea.  September 10, 2013: Discussed the design of the thrower  September 17, 2013: Discussed the components to be used  October 3, 2013: Ordered discussed parts to be used  October 4, 2013: Prepared preliminary proposal  October 12, 2013: Constructed rough circuitry  October 18, 2013: Designed and built lever assembly  October 22, 2013: Proposal and presentation prepared  October 25, 2013: Deliver presentation and proposal  November 29, 2013: Have completed assembly built and tested  December 6, 2013: Have final report and presentation complete

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