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] 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 User Friendly We selected five first layer attributes that we felt the customer would want in a product User Friendly Able to use with only one finger Durable Simple Design Safe

Design Process Customer Needs Collection and Ranking Inexpensive Within these first layer attributes, we found second layer attributes that would be pleasing to a customer User Friendly Inexpensive Simple to Use Lock Tight Lid Ambidextrous Design

Design Process Able to use with only one finger No strain on joints or muscles Single round handle for finger Clamps to grab around the palm Simple trigger to pull clamps

Design Process Durable Plastic with Insulation Trigger works well Trigger is efficient Simple Design Solid Color Lightweight Flat Base

Design Process Safe Insulation No sharp edges Aerator Grips

Design Process Second Layer Attributes: USER FRIENDLY

CAN USE WITH ONLY ONE FINGER 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 Good ideas and Bad ideas Ex. Original trigger idea (“Josh’s Big Failure”) What worked and what didn’t Had to become one with our inner one-fingered persona

Design Process Concept Selection 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 Adjustable, single-finger handle to fit all sizes Vertical adjustability Outside brace Plastic, interior filling to prevent splashing Insulated to retain heat but not burn the hand Lock tight lid to prevent spillage

Design Process Prototype and Testing Used clay to prototype mug Clay vs Ceramic vs Plastic vs Metal Easy-to-use 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