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BOMBS C.C.BOMBS C.C.
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Group Members
•• BBrett Gleasman– Group Leader
• Introduction• Problem• Conclusion
•• OOwen Clark– Design/Drawings
• Design• Adjustment
•• MMatt Holsopple– Design/Drawings
• Base• Accuracy
•• BBrett Morris– Materials/Final Sketch
• Radial Arm/Trigger• Final Product
•• SSteven Kovach– CADD Drawing/Assembly
• Assembly• CADD Drawing
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Problem
The Problem was to design a Catapult that would fire a 50 gram object 3 meters and hit a target that is 20 inches off the ground. The Catapult had to fit in a box that was 1.5 feet3. We had to be able to design the Catapult to be able to change on the needs of trajectory and distance to hit the target in the bull’s-eye.
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Design
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Assembly
• Materials– 2x2 8ft $2.50– 1x3 8ft $2.00– 2’x2’ plywood Base $4.00– 5ft 2in PVC Pipe $5.00– 8ft Molding $1.00– Screws/Medical
Tubing/Labor/Hinge/ Carpet liner $Free
• November 5th
• Steven Grandfather’s Garage• Tools Used
– Table Saw– Drill/Screw Driver– Chop Saw– Sander– Staple Gun
• 4 Hours of Building Time
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Base
• Materials– Rubber matting– 1.5ft2 Plywood Base– 10lb Plate
• Reasons– Stability– Safety
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Adjustment
• Materials– PVC Pipe– 2x2 Wood– 1x3 Wood– Padding
• Reasons– Angle– Distance– Safety
• Changes
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Radial Arm/Trigger• Materials
– Chinstrap– Hinge– 1x3 Wood– Eye Screws– Nail– String– Medical Tubing
• Reasons– Stability– Safety– Reliability
• Changes
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CADD Drawing
TopFront Side
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Accuracy
60
65
70
75
80
85
90
95
100
Prototype Test 1 Test 2 Test 3
First ShotSecond ShotThird Shot
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Final Product
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Conclusion
For this problem of hitting the target consistently with accuracy we made the final product by going through the process that was stated.
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Questions
BB OO MM BB SS