2013 First Robotics Frisbee Thrower Prototype Team 3684 The Electric Eagles

Our final prototype of the Frisbee thrower. Uses 2 wheels from this years kit on the horizontal plane belted together running off a single direct drive CIM motor and a single AndyMark wheel on the vertical plane direct drive from a CIM. Velocity is running over 30 feet per sec (about 20 miles and hour), easily shoots over 80 feet. Flies very flat and stable. We found that a single wheel system would not give enough velocity to shoot very far. Our goal is to shoot from the loading area which means that the thrower will have to shoot at least 50 feet accurately.

The top wheel is slightly off center to provide forward momentum and add a little extra rotation for increased stability. A rotating finger from under the platform draws the Frisbee from the loading hopper into the firing area to launch. The firing platform will be hinged at the rear and a screw drive system will raise and lower the firing angle.

The cabinets at the far end of the room in the video are over 35 feet from the launch platform. We had to shoot towards the cabinets because the Frisbees were denting the sheet rock wall! You can email dchartley@seattleschools.org for more information.

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