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Background Prior designs from 1980’s and 2007

Background Prior designs from 1980’s and 2007. Compliance Testing Weight of Attachment 4.3 lb Nail Pulling Cycle time – 14 to 60 seconds Clenched and straight nails Raised, flush and embedded.

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Background Prior designs from 1980’s and 2007

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  1. Background • Prior designs from 1980’s • and 2007 • Compliance Testing • Weight of Attachment • 4.3 lb • Nail Pulling • Cycle time – 14 to 60 seconds • Clenched and straight nails • Raised, flush and embedded Power Nail Puller AttachmentAltitude EngineeringSponsored by Frontier BarnwoodUniversity of WyomingUndergraduate Research DayMechanical Engineering Design SymposiumApril 26, 2008Brady AdamsZachary FrameJerry HahnRobert Marion • Specifications • Performance • Pull 8d -60d nails • 15 second cycle time • 6 inch stroke • Limited damage • Adverse conditions • Weight • Less than 5 lbs • Cost • $1000 Budget • Cost Analysis • Prototype Cost • Materials - $282 • Engineering Labor - $18,800 • Fabrication Labor - $2,100 • Societal Impact • Workers • Decrease physical strain • Company • Increase efficiency • Increase production • Modeling • Power screw • Support frame • Gears • Drilling head Support Frame Hammer Drill Handle Guide Rod Extraction Head Power Screw • Conclusion • Effectively pulled nails using drilling head method • Recommendations would include a self-aligning three gear system • Testing • Hole saw torsion • Drill chuck hardness • Drill chuck tension Tightening System Modified Drill Chuck

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