Crossbow
From DDL Wiki
DFE Analysis
DFE Guideline | Good Aspects of Competitor Product and Ideas for Improvement |
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0. New Concept Development | Remove fasteners to allow a snap-fit design.
Integrate a quiver into the crossbow itself, instead of having it as a separate part. Add a loading mechanism that does not require a very significant force input from the user. |
1. Select Low Impact Materials | Crossbow:
Aluminum, Fiberglass, Steel Bolt: Aluminum, Carbon Fiber Sling: Nylon, Foam
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2. Reduce Material Amount | Slots in the crossbow body reduce mass
Limb is removable to reduce transport volume The "snap-fit" design would reduce material amount by removing the need for fasteners |
3. Eco-Manufacturing |
Camouflage coating requires an adhesive |
4. Optimize Distribution | Fill this with info
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5. Reduce Use-Phase Impact | Fill this with info |
6. Maximize The First Life | Fill this with info
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7. End of Life |
Product Life Cycle Analysis
Life Cycle Stage | Description | Inputs | Outputs |
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Material Extraction | Steel from Iron Ore
Plastic from Petroleum Fiberglass Raw materials must be processed. | Iron Ore
Petroleum | Silica sand
Limestone Grease |
Production | Springs (Acquired)
Casting Stamping Assembling | Steel
Plastic Grease | Components |
Use | Doorknobs, Two Woodscrews | Working Door | |
End of Life | Retiring/Disposal | Doorknob | Landfill |
Transportation | Truck | Fuel, Door Latches | Door Latches |