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Critical Design Review: The Nautilus

Critical Design Review: The Nautilus. Team ACME Andrew Henebry, Tom Lauducci, Megan Snyder, Tim Stonelake. Talking Points. Project Introduction Concept Development Prototype Design Showstopper: Lifting Method Critical Design Issues Budget Breakdown Future Challenges. The Challenge.

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Critical Design Review: The Nautilus

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  1. Critical Design Review:The Nautilus Team ACME Andrew Henebry, Tom Lauducci, Megan Snyder, Tim Stonelake

  2. Talking Points • Project Introduction • Concept Development • Prototype Design • Showstopper: Lifting Method • Critical Design Issues • Budget Breakdown • Future Challenges AME 470 - Team ACME

  3. The Challenge • Bulk Material Transporter – Must transport rice up sequence of 3 stairs, complete 90o turn, descend a stair, deliver payload into container, and return to starting area. • American Society of Mechanical Engineer’s 2005 Student Design Competition AME 470 - Team ACME

  4. Early Concepts AME 470 - Team ACME

  5. The Nautilus - Key Stats • Weight: 5.55 lb • Potential Payload: 9 lb • Tested Payload: 5 lb • Cost: $405.98 • Batteries: 10 AA • Delivery Time: 1 minute AME 470 - Team ACME

  6. Ascending the Stairs AME 470 - Team ACME

  7. Turning AME 470 - Team ACME

  8. Delivering the Rice AME 470 - Team ACME

  9. Returning Down the Stairs AME 470 - Team ACME

  10. The Showstopper – Cams • Minimization of moment arm length • Curve defined by: • Maximum moment arm reduced from 5” to 2.5” AME 470 - Team ACME

  11. The Showstopper – Cams • Cam contact edge constrained by length of stair tread • 6.5” maximum curve length • Iterative calculation of curve equation AME 470 - Team ACME

  12. Critical Design Issues • Front Cam Modifications • Chain Tensioning AME 470 - Team ACME

  13. Budget Breakdown AME 470 - Team ACME

  14. Better Tensioning Grain Delivery Remaining Challenges AME 470 - Team ACME

  15. Demo and Questions (10 minutes) AME 470 - Team ACME

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