© 2015 by Daniel Halstead

Engineering EPQ (2015)

"To design and prototype a marine safety knife that can be used by those with restricted hand, wrist or arm movement, and potentially with limited vision, with elderly sailors as the key end-user group"

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Processes

  • 15,000 word design report

  • End-user qualitative focus groups

  • Laser cutting + 3D printing

  • 32 models constructed

  • •Stress and wear simulation testing

 

 

Key design areas

  • Handle grip shape

  • Rotating blade mechanism

  • Locking mechanism

  • Blade and shaft material choice and costing

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