1. ME 4182: Team Purple Cobras Week 3 Deliverables Problem Statement/Design Partition/ Project Plan/Task Assignments Andrew Ogden Nick Fila Greg Freisinger Tracy Jenkins Nate Smiga

2. ME 4182: Team Purple Cobras Overview zProblem Statement (Nate) zDesign Partition ( Nick ) zTask Assignments (Tracy) zProject Plan (Greg)

3. ME 4182: Team Purple Cobras Project Selected : Cane Claw 3 Pt Stable Aid Single Pt Stable Aid Stability : indicated by a high polar moment of inertia about the center of the contact pattern

4. ME 4182: Team Purple Cobras Problem Statement (Abridged) z To provide a stable walking aid for those with limited mobility and flexibility while enhancing their ability to pick up, or reach objects z Intended Market Elderly Hip replacement Patients Knee Replacement Patients z Specifications Rigid and Stable Lightweight Able to hold 25 lb force Sensitive to Fragile Objects Useable as Cane when holding Objects

5. ME 4182: Team Purple Cobras Design Partition zDesign of the motion activator. Options: 1)Button 2)Hand Pump 3)Lever zDesign of the force to transfer motion to claws. Options: 1)Pneumatic force 2)Spring force 3)Cable tension zDesign of the joints of the claws. Options: 1)Riveted joints 2)Bolt joints 3)Track system zDesign of the force system to hold claws closed. Options: 1)Pre-loaded spring force 2)Spring force 3)Lever system

6. ME 4182: Team Purple Cobras Project Plan

7. ME 4182: Team Purple Cobras Task Assignments Andrew Ogden – Team Leader/Coordinator Greg Freisinger - Mechanical Systems Responsible for: Responsible for: Subtask division for completion of weekly tasks Stress and Strain Analysis of Components Coordination of tasks and schedule Midterm Mock up Weekly presentation creation Prototype validation and Testing Fatigue failure analysis Nate Smiga – Mechanical Systems Responsible for: Stress and Strain analysis of components Midterm Mock up End of term Prototype Nick Fila – Webmaster/Kinematics Tracy Jenkins – Materials/Manufacturing Responsible for: Design of springs and levers. Design of springs and levers Investigation of abilities of end user Verification of Component Accuracy Component Sourcing Visual Aid Creation Website design and upkeep Material Selection Prototype validation and Testing Manufacturing feasibility

8. ME 4182: Team Purple Cobras Questions?