Project 1
The One-Finger Mug
Team 8
Josh Lamb, Judah Jamison, Jacob Barrientos, Bridget Fay
Junfeng Ma
October 10, 2014
The Background
● Hand injuries account for 17% of all workday injuries.[1]
● The most common amputation of the upper extremities is the
loss of one or more fingers.[2]
o
Reasons for these amputations include cardiovascular disease, traumatic
accidents, infection, tumors, nerve injury (trophic ulceration), and congenital
anomalies.
[1] http://www.emedicinehealth.com/hand_injuries/article_em.htm
[2] http://www.aboutonehandtyping.com/statistics.html
Why?
● To help people and create freedom
● To meet the needs of the disabled
● We are engineers
Mission Statement
● The purpose of this design project is to develop a
coffee mug with attributes: such as, ease of use,
cost efficiency, and durability by people with
hand disabilities, specifically people with only
one finger.
The MUG
Design Process
● Customer Needs Collection and Ranking
o We selected five first layer attributes that we felt the customer would want in
a product
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User Friendly
Able to use with only one finger
Durable
Simple Design
Safe
Design Process
● Customer Needs Collection and Ranking
o Within these first layer attributes, we found second layer attributes that would
be pleasing to a customer
o User Friendly
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Inexpensive
Simple to Use
Lock Tight Lid
Ambidextrous Design
Design Process
● Able to use with only one finger
o No strain on joints or muscles
o Single round handle for finger
o Clamps to grab around the palm
o Simple trigger to pull clamps
Design Process
● Durable
o Plastic with Insulation
o Trigger works well
o Trigger is efficient
o Simple Design
o Solid Color
o Lightweight
o Flat Base
Design Process
● Safe
o Insulation
o No sharp edges
o Aerator
o Grips
Design Process
Second Layer Attributes:
USER FRIENDLY
Design Process
CAN USE WITH ONLY ONE FINGER
Design Process
DURABLE
Design Process
SAFE
Design Process
SIMPLE DESIGN
Design Process
● Concept Generation based
on Customer Needs
● Handle
● Outside design
● Material
● Insulation
Design Process
● Concept Selection
o Good ideas and Bad ideas
Ex. Original trigger idea (“Josh’s Big Failure”)
o What worked and what didn’t
o Had to become one with our inner one-fingered persona
Design Process
● Concept Selection
o The concept selection process consisted of the members
of our group trying to determine what the most important
attributes were to include in the final product
Design Process
We spent hours in deep thought
Design Process
We spent hours reading literature on other designs
Design Process
And after the long process of determining what to leave in, we came up with
different combinations of the attributes that we believed were the best
Design Process
● Concept Selection
o Adjustable, single-finger handle to fit all sizes
o Vertical adjustability
o Outside brace
o Plastic, interior filling to prevent splashing
o Insulated to retain heat but not burn the hand
o Lock tight lid to prevent spillage
Design Process
● Prototype and Testing
o Used clay to prototype mug
o Clay vs Ceramic vs Plastic vs Metal
o Easy-to-use
o Universal
Design Conclusion & Summary
● Difficulties
● Patents
● Clay prototype
● Confounding variables
● Original design that is practical
● Choosing the best design
Design Conclusion & Summary
● What we learned from this project?
● Prototype and solidworks model
● Customer needs ranking (prioritizing)
● Confounding variables
● Importance of process
● Originality
● Innovation requires patience
Conclusion
● Best design
● Allows physically disabled individuals to drink coffee with ease
● No costly aspects of the mug
● Fits all users
● Safe