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Mire design review

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Mire design review

  1. 1. MIRE Design ReviewSteven Wylie, Ivan Auer, and Max Tabor February 11, 2013
  2. 2. Scope• Presentation of proof of concept • Requirements and functional decomposition review • Design alternatives • Primary design choice • Engineering evidence to meet requirements • Subsystems should address key technical issues
  3. 3. Requirements• Functional/Performance• Physical Size• Safety• Portability• Electrical/Software
  4. 4. Functional Decomposition
  5. 5. Key Technical Challenges• Switch placement system• Arm sturdiness• Mobility and stability• Monitor support and display• Material choice
  6. 6. Design Alternatives Three Unit System
  7. 7. Design Alternatives One Unit System
  8. 8. Design Alternatives• Box Mover Design
  9. 9. Selection of Primary Design
  10. 10. Selection of Primary Design
  11. 11. Selection of Primary Design
  12. 12. Selection of Primary Design Table 7: Material Decision Matrix Price Weight/inch Ease of Use Strength Item Total Weight Total Score Weight Score Multiplied Weight Score Multiplied Weight Score Multiplied Weight Score Multiplied80/20 3 0.75 4 0.8 5 1.5 4 1 4.05Eco Shape 0.25 2 0.5 0.2 4 0.8 0.3 4 1.2 0.25 3 0.75 1 3.25L Bar Aluminum 1 0.25 5 1 2 0.6 2 0.5 2.35 Price $ Weight EofU Strength (Yield Strength) 1 0.10 1 Heavy 1 Custom 1 7000 13399 2 0.15 2 Less Heavy 2 Heavy Machining 2 15000 21399 3 0.21 3 Light 3 Multiple Types of Premachine Material 3 23000 29399 4 0.26 4 Very Light 4 Fasterners and Raw Material Options 4 31000 38999 5 0.35 5 Lightest 5 Vast Amount of Interchangable Parts 5 39000 +
  13. 13. Subsystem DevelopmentMoniter/Arm Mounting System
  14. 14. Subsystem Development• Front Button Interface
  15. 15. Subsystem DevelopmentMoniter/Arm Height Adjustment System
  16. 16. Engineering Analysis
  17. 17. Engineering Analysis• Moment analysis to prevent tipping• Weight and cost analysis of 80/20 using material properties• Wheel size analysis for bumps in hospital• Weight analysis • Is it light enough to be easily moved?• Comparative analysis of given specification sheets of materials to design requirements
  18. 18. Budget X-Box Design Device Name Amount Purchacing Location Price Per Part Total Price 8020 - 1010 T-SlottedStructure Profile 34 feet 8020.net $0.23 per inch $93.84 moffattproducts.coArms Moffatt Arms 4 arms x 30" each m $1.00 per inch $120.00 LX Wall Mount LCD $169.00 perMonitor Mount Arm 1 ergotron.com unit $169.00Monitor Mount Single Flange LinearLocks Bearing Brake 2 8020.net $38.60 per part $77.20 RWM Signature SolidWheels Wheel 2 medcaster.com $30.00 per part $60.00 Total Cost: $520.04
  19. 19. Project Plan• Order parts immediately if given approval• Begin early testing and fabrication once parts arrive
  20. 20. Conclusion• Primary design choice in summary• Questions and comments from customers and advisors

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