Transcript dr-13 - Department of Mechanical Engineering

Creative Card Placing Machine
Exerting Maximum Effort For Minimal Results
Design Concept Review
• Quick Review
Background
Problem Description
Mission & Approach
Customers/Wants/Constraints
System Benchmarking
Metrics
Functional Benchmarking
• Concept Derivation
• Concept Selection
• Budget
• Schedule
Background
Exchange of Business Cards Is Commonplace in Industry
• Marketing Tool / Networking Aid
Companies Seeking Creative Method Of Accepting
Business Cards
• Differentiate Themselves
• Display of Creativity
A Prime Example
Problem Description
Needs:
Develop a device to highlight GDA Digital Media’s
functional creativity and celebrate a client’s visit
Device will randomly place a business card on the
wall in a method representative of GDA’s imaginative
style
Benefit:
Device will convey GDA’s receptive and “down-toearth” approach to business relations.
Creative Card Placing
Machine
Team 13
Members: Jeremy Garey, David Conway, Evan Kress, Rob Roche
Customer:
GDA Digital Media
Advisor: Dr. Glancey
Mission:
To design, build, and evaluate an innovative, multi-step
machine that accepts a business card and places it randomly
in a defined area of the wall.
Approach: The problem will be attacked through detailed problem definition
and research. This will encompass identifying specifications,
contacting customers, prioritizing their wants, and benchmarking
existing solutions. Based on this iterative procedure, potential
solutions will be developed and evaluated based on metrics.
A prototype will then be constructed and tested.
Customers
Lee Mikles
GDA Visitors
Kristen Raughle
Mike Russell
Kinko’s
Marketing Manager
Potential
Customers
Secretary
Director of
Creative
Development
Business Card
Manufacturer
Top Customer Wants
1. Display Functional Creativity
2. Reliability
3. Customers Represented
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7.
Limited Machine Size
Limited Run Time
Compatibility
Simple Re-loading
Note: New understanding of creativity want
Constraints
• Random Placement In Defined Area
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Minimum Five Steps
No Profane, Indecent, Or Lewd Expressions
Cost Not To Exceed $250
No Human Intervention After Startup
Must Include GDA Logo And ‘Spike’ Image
Must Include A South Park Character
Card Must End Up Face Out
Top Metrics
Top Want:
Display Functional Creativity
# of Employee Representations
# of Steps
# of Steps That Involve the Card
# of Moving Parts
# of Dissimilar Actions/Steps
# of Steps to Start the Machine
# of Hidden Steps
% of Card Visible After Attachment
% of Card Defaced
# of Simultaneous Steps
Metrics
Want:
Reliability
Design Life
% Complete Cycles
Limited Run Time
Time to Completion
Customers Represented
# of Customer Representations
Limited Machine Size
Machine Length/Width/Height
Metrics
Want:
Business Card Compatibility
Card Size
Weight
Thickness
Simple Reloading
Reload Time
Employees Represented
# of Employee Representations
Top Metric Target Values
Metrics
1. # of Employee Representations
2. # of Steps
3. # of Steps That Involve the Card
4. # of Moving Parts
5. # of Dissimilar Actions/Steps
6. # of Steps to Start the Machine
7. # of Hidden Steps
8. % of Card Visible After Attachment
9. % of Card Defaced
10. # of Simultaneous Steps
Target Values
4
7
7
7
7
1
0
100%
0%
2
System Benchmarking
Labeling Machine
Packaging Device
Coin Sorter
Auto Feed Copy Machine
Printing Press
Functional Benchmarking
• Placement/Positioning
• Random Generation
• Human Interaction
• Rube Goldberg’s
• Wall Attachment
Functional Concept
Generation
Placement/Positioning
Brainstorms
Robotic Arm
Linear Actuator
Hinged Bulleting Board
Dart Gun
Free Fall
X - Y Plotter
Feasible Concepts
Robotic Arm
Linear Actuator
Hinged Bulletin
Board
X - Y Plotter
Functional Concept
Generation
Random Generation
Brainstorms
Mechanical Devices
Plinko
Roulette
Free Fall
Air Table
Computer
Feasible Concepts
Air Table
Computer
Functional Concept
Generation
Attachment
Brainstorms
Double Sided Tape
Glue
Velcro
Staples
Push Pin
Darts
Magnets
Pin Board
Feasible Concepts
Double Sided Tape
Push Pin
Staples
Pin Board
Glue
Functional Concept
Generation
Machine Initiation
Feasible Concepts
Pinball Plunger
Carrousel / Trapdoor
- Returns GDA Business Card
Placement in Car
Foosball Player
Placement in Robot Grippers
Push Buttons / Switches
Metric Refinement and
Validation
Lack of Engineering Specifications That Measure Creativity
Presented Concepts to GDA
Led to analysis of individual functions
for specifics that make a design creative
Based on Specifics
Developed New Metrics
Validated Existing Metrics
The Specifics Metric Development
Some Feedback Highlights
Robot Arm more favorable than Bulletin Board
Metric: # of hidden steps
Tape/glue more favorable than push pin/pin board
Metrics: % card defaced
% card visible after attachment
Concept Generation
Complete Solutions were developed with the
top functional concepts
Several of creativity metrics solely measure Rube
Goldberg steps
Therefore, all concepts that contained the top
Rube Goldberg system ranked best
The Top Concepts
Concept A
Initiation: Card Placed in car and shot with pinball
Placement: Robotic Arm
Random Generation: Computer
Attachment: Solenoid / Double Sided Tape
Concept B
Initiation: Card Placed in car and shot with pinball
Placement: X - Y Plotter
Random Generation: Computer
Attachment: Solenoid / Double Sided Tape
Concept C
Initiation: Card Placed in car and shot with pinball
Placement: Hinged Bulletin Board
Random Generation: Air Table
Attachment: Double Sided Tape
Concept Selection
Metric Highlights
Concept A
2 steps to initiate machine
Concept B
2 steps to initiate machine
The X-Y plotter acts in a linear fashion
duplicates an action
Concept C
2 steps to initiate machine
The Air table hides attachment of card
Has 1 hidden step
Hinged Bulletin Board doubles required
Volume ~ 4’x 2.5’x 2.5’
Concept A
Five Major Functions:
Acceptance - Two Steps
Place card in car
Pinball Plunger
Rube Goldberg Highlights - 12 steps
Car down a ramp
Card in an elevator and on conveyor belt
foosball player and ball
Guillotine cutting Kenny’s head off
Concept A
Random Generation
Computer Generated Number
C Program
Use 1 serial port and 1parallel port
Placement of Card
Card positioned with robotic arm
2 Degrees of Freedom
Planar Motion
Driven by two stepper motors
Card held to arm via vacuum suction
Attachment
The Critical Function
Solenoid extends
Vacuum turns off
Tape adheres to wall
General Drawing
Attachment Mechanism
Budget
Maximum $250
Most of our budget will be spent on materials and electronics for the
robot arm.
Detailed Robot Budget
Stepper Motors
Solenoid
Micro-switches
Electronics(amplifiers, wires, transistors, etc.)
Aluminum Supplies
Belt
Gearboxes
Bearings
Computer
Miscellaneous
Total
$45.00
$4.95
$6.00
$20.00
$15.00
$10.00
$20.00
$2.00
donated
$20.00
$142.95
Budget Highlights
Rube Goldberg Steps
Parts needed:
Conveyer belt, DC motors, aluminum, switches,electronics
Estimated amount
$50
Donations
Kenny doll and foosball
Framing for machine
Parts needed:
2 by 4 boards, plywood, nails, and brackets
Estimated budget
$25
Decoration of machine
Parts needed:
Paint supplies, brushes and other supplies
Estimated budget
$20
Total: $237.95
Current Standing
Thus Far
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Refined metrics for functional creativity based on
GDA’s feedback of concept presentation.
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Re-evaluated concepts based on newly generated
metrics in a iterative process.
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Selected best concept to date based on current
metrics.
Future Goals
Next Steps
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Devise a way to return GDA business card
to visitor.
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Re-evaluate and update materials list and parts
needed.
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Present current concept to GDA to receive
feedback to continue iterative process.
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Re-evaluate current concept based on
feedback received.
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Present to GDA again for further feedback to
continue iterative process as necessary.
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Begin prototype fabrication