1. Standout Technical Designers MAE 416: ME Senior Design Sponsored by Cooper Hand Tools Group: K4

2.  Problem Statement  Personnel  Critical Design Features Sketches  Optimization Methods Factors Design Matrix  Ethics  Concluding Remarks

3.  Design a new tape blade with a minimum standout of at least 10ft while adhering to the defined problem constraints

4. Brian Sears briansears11@gmail.com Team Leader Welder Pooria Javidi pjavidi@ncsu.edu Team Treasurer Shop Fabricator Chris Evans cwevans@ncsu.edu Team Communicator Shop Fabricator Nate Ouellette npouelle@gmail.com Shop Fabricator Nathan Mize ncmize@ncsu.edu Shop Fabricator Justin Bridges jjbridge2@ncsu.edu Machinist Artist

5. Features  Based on Combination of Ideas  Utilizes Original Lufkin Dimensions Requires Less Changes in Production  Edges turned over Double Thickness Flats  Slots Cut Along Blade Length First 2’ of Length Diminishing Returns  Coil Extendable Support Coil wire attached to the blade

6. Sketches

7. Factors  Test how material will perform Test sample to yield- calculation. Population mean= 95.24 ksi Population variance=5.1816 ksi Coefficient of variance= 0.0169  Probability density for Ultimate Tensile Strength of 1095 carbon steel.  Cumulative probability

8. Criterion Value Adj. (%) Blade Grips (score) Blade Support (score) Sym. Blade (score) Cut-outs (score) Heat Treat (score) Stiffness0.2520.50030.75-2-0.530.8 Safety0.2500-0.25-0.3-0.330.8 Mfg.0.2-0.2-0.2-0.220.430.6 Func.0.1520.32 2 2 30.5 Cost0.5-0.5-0.5-221-3-1.5 Mkt.0.51 1 1 2121 Durabilit y 0.5-3-1.5-0.5-2 -0.510.5 Score Σ 100 -0.9 -0.65 -0.9 1.45 2.6 Design Matrix

9. Engineering Ethics are a set of standards which define engineers’ obligations to the public, their clients, and the profession.  Fundamental Canons 1 st Canon- Safety 2 nd Canon- Perform Services in Expertise 3 rd Canon- Avoid Conflicts of Interest

10.  Focused on a Single Design  Continued Testing and Simulation  Remain on Schedule  Stay on Budget  Looking Ahead to Prototype Fabrication Any Questions?