Blog Week 1: 2/13/2018

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Blog Week 1: 2/13/2018

As our first blog this will be an explanation of our project. Our main focus is to compare the Trebuchet and Catapult to see which one will launch an object the furthest. This should be a difficult but enjoyable experience for the group. Hopefully it goes smoothly and we can succeed throughout these 12 weeks.

Proposal:
The project that we will be completing will include creating a Catapult and a Trebuchet. They will have a pivot point under 4 ft tall and the base will be 3 ft by 4 ft. The reason we are doing this project is to find whether the Catapult or Trebuchet will launch an object the furthest distance.

Timeline:

Week 1:
  • Research Previous Catapults/Trebuchets and parts
  • Design the Structures on Solidworks
Week 2:
  • Gather Materials to construct the structures
  • Continue design on Solidworks
Week 3:
  • Constructing the Catapult
Week 4: 
  • Constructing the Trebuchet
Week 5:
  • Troubleshooting and Improvements
Week 6:
  • Troubleshooting and Improvements
Week 7:
  • Troubleshooting and Improvements
Week 8:
  • Troubleshooting and Improvements
Week 9:
  • Troubleshooting and Improvements
Week 10:
  • Troubleshooting and Improvements
Week 11:
  • Troubleshooting and Improvements
Week 12:
  • Troubleshooting and Improvements

Budget:
Parts list and cost

  • Trebuchet : Materials Used:

    Two 28" 2x4’s ….. $3.58 /each  

    Two 50" 2x4's…… $4.27 /each

    Four 53" 2x4's…… $4.88/each

    Five 5' 2x4's….. $3.58

    One 8' 2x4 ………..$3.58
    4x8 Sheet of Plywood……….. $13.98
    Two metal pipes 18" long and 1" in diameter $347.33
    One metal pipe 26" long and 1" in diameter  375.44
    Weights $18.00 x2
    10' of 550 Parachute Cord $3.99
    Sling Material $13.00 (ex: Leather, Tarp, Denim, ETC.)
    Wood Screws 3"  13.39 
    3 Eye Hooks  7.99 with a safe working load of at least 75 lbs
    Tools:
    ·         Hand Drill
    ·         Jigsaw
    ·         Sander*’
    ·         Drill Press
    ·         1 1/8" Spade Bit
    ·         Phillips Head Bit
    ·         1/16" Drill Bit for Pilot Hole*


      Catapult: 
      Two 36” 2x4 $358 /each  
      One 30” 2x4 $358 /each  
      Four 15” 2x4 $4.88/each        
      One piece 18” 2x4 $4.58
       10' of 550 Parachute Cord $3.99
       Wood Screws 3" $13.39 
       Plywood ¼ - 1/2” thick, 15”x 18” ½” $10.98
       Weights $18.00
       Pot $10.00




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