Team Lit Week 6 Deliverables: Selection Analysis

1
Team LitWeek 6 Deliverables Selection Analysis

• Justin Ballenger
• Brian Barker
• Greg Hahn
• Chow He
• Jon Klopf
• Vi-Vi Nguyen

2
Problem Statement

• To create an affordable device to be used in the
  changing of a standard 4 ft long fluorescent
  light bulb

3
Agenda

• Five best conceptual designs
• Additional supporting designs
• Selection analysis
• Evaluation chart
• Questions

4
Designs

• 5 best conceptual designs
• Clip connection
• Rubber wheel rotator
• Wide channel connection
• L-hook connection
• V-clamp connection
• Secondary alignment
• 2 extension mechanisms

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Ballast Redesign Clip Connection

• Advantages
• Easy removal and installation
• No rotation required for installation
• Secondary alignment compatible
• Disadvantages
• Requires replacement of existing lighting figures
  for use
• Must redesign connection to ballast
• costly

6
No Redesign Rubber Wheel Bulb Rotator

• Advantages
• Uses current bulb
• Uses current socket
• Large market
• Simple design

7
No Redesign Rubber Wheel Bulb Rotator

• Disadvantages
• Hard to align connections
• Could break bulb
• May not can turn bulb with friction on glass part
  only

8
Ballast Redesign Wide Channel Connection

• Advantages
• Uses standard bulbs
• Channel automatically aims and rotates bulb
• Disadvantages
• Minor manual aiming required
• Both ends of bulb must be inserted simultaneously

9
Ballast Redesign L-Hook Connection

• Advantages
• No changes to bulb
• No rotation necessary
• One side at a time
• Disadvantages
• Must redesign connection to ballast
• costly
• Alignment necessary
• Must enter w/ pins horizontal
• Both ends of bulb must be inserted simultaneously

10
Ballast Redesign V-Clamp Connection

• Advantages
• Uses standard light bulbs
• Extension rod separates the V for
  installation/removal
• Secondary alignment compatible
• Disadvantages
• Must redesign connection to ballast
• Costly
• Both ends of bulb must be inserted simultaneously

11
Secondary Alignment Cone Alignment

• Advantages
• Uses standard light bulbs and ballasts
• Cone indention created on the light fixture
  assembly
• Assures correct alignment between bulb and
  ballast
• Disadvantages
• Must redesign housing unit
• cost

12
Extension/Retraction Design Screw Tightening
Pole

• Advantages
• Simple
• Consumer already knows how to use it
• Lightweight
• Disadvantages
• Only one small gripping point may not be adequate

13
Extension/Retraction Design Ball-Spring Loaded
Pole

• Telescoping tubes
• Outer tube
• Evenly spaced holes
• Inner tube
• Semi-circular spring loaded button
• Button pops into holes in outer tube to lock at a
  desired height
• Advantages
• Easy to use

14
Weight Selection Criteria
Design weight selection
Operation weight selection
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Evaluation Chart
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Questions