Problem Statement Create a tool that will assist people with limited dexterity and strength in their hands in gardening. The device should be comfortable, easy to put on and take oďŹ€, and have a natural aesthetic which reďŹ‚ects that act of gardening.
H E B E R , U TA H : D AY March 10th 2015
Interview / Dave’s home ME I met with Dave in his home and talked about his life “When was the accident?” and schedule. He gave me a tour of his garden and D AV E
garage. He had created several work arounds to water his plants. He also had raised beds for his garden.
“A p r i l 1 1 t h 2 0 0 1 . ”
After seeing all the adaptations he had made I
realized that Dave wanted to be self sufficeint. He “How were you hurt?” made adjustments that would help him accomplish day D AV E
to day tasks on his own.
“ M VA , T 6 i n c o m p l e t e . ”
ME “Do you see yourself as disabled?” D AV E “Crippled, handicapped, whatever you want to call it...I can do about anything I want, I’m more productive than some uprights I k n o w. ”
Study Ethnography / Daveâ€™s home Work around devices made by Dave. Fork, knife, and typing tools
Ergonomics / Wrist Grip Identifying pressure points and exploring where the power from grip comes from and how to increase it.
Analysis Grip Natural curves found on the hand and wrist could be used to â€œhookâ€? the device around the hand to reduce the need for grip strength.
Pressure points Areas on the hand that are susceptible to rubbing and chafing that could require padding for comfort.
Opportunities 1. Natural Materials 2. Aesthetics 3. Wrist support
Plan Form Exploration I used sketching to explore where I could subtract material in order to keep the device on the hand without gripping it, but also make it easy to put on and take off with limited dexterity.
Prototype 1. Flat form paper models were used to pattern the curves of the hand and wrist. 2. Wire and clay rapid prototying helped form a comfortable grip. 3. Heat formed HDPE was used to study the force from the arm and the forces returned by the device on to the wrist. 4. Clay model was used to create a custom fit and the final shape. 5. Wooden carved prototypes refined the shape and aesthetics.
Experiment I explored material choices and construction with paper patterns, thermoformed plastic, modelling clay and wood.
Make The final form was made by creating a clay model around the hand for custom comfort and fit then carving it from wood and attaching the shovel.
I chose wood for the final form for itâ€™s natural quality which reflects the act of gardening and being in touch with the nature.