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16. Applications and Implications (May 14, 2014)
Plan and document a final project
What will it do?
Backpack-type water utilization module, as a prototype learning
product which combine open digital design and local common
Who's done what beforehand?
Back carrier has long been made, improved, and used by many
For modular system for water utilization, many elemental
technologies have been developed and put into practical use.
Here I will introduce some applications in the context of
appropriate technology and international/regional development,
and some research papers:
 Arturo Vittori (Architecture and Vision), WarkaWater,
 Vestergaard, LifeStraw, 1996. http://www.buylifestraw.com
 Ken Surritte, WATERisLIFE: The Straw, The Drinkable Book.
 Boutilier MSH, Lee J, Chambers V, Venkatesh V, Karnik R,
Water Filtration Using Plant Xylem, PLoS ONE 9(2), 2014. http://dx.doi.org/10.1371/journal.pone.0089934
 Sittha Sukkasi, Redesign and Development of Faster
and More Effective Solar-Water-Disinfection Containers,
 Petra Wadström, Solvatten, 1997. http://www.solvatten.se/
Projects which combine open digital design and local common
 Amit Zoran, Hybrid Basketry: Interweaving Digital
Practice within Contemporary Craft, LEONARDO, Vol.46, No.4,
pp.324-331, 2013. http://www.mitpressjournals.org/doi/abs/10.1162/LEON_a_00603
 Fab Lab Limerick, Bamboo and Digital Fabrication, 2013. http://fablab.saul.ie/research/3Dprint-bamboo/
 Fab Lab Kamakura, FUJIMOCK FES. (written in Japanese) http://www.fujimockfes.org/
What materials and components will be required?
Wood (Hinoki cypress, Sugi cedar)
Other electronic components
Where will they come from?
Chassis materials are collected from local areas in Japan.
Almost electronic components are purchased from online store
Digi-Key, and others are purchased at electronics components
shops in Osaka, Japan.
(Ready-made parts for making prototype were purchased from MUJI
retail store, and made in some Asian countries such as Vietnam,
Thailand, Philippines, China, and Japan.)
Wow much will it cost?
Rice straw: priceless!
Bamboo: priceless! or $2
Wood: ~ $10
Washi paper: $4
Shuro palm: priceless!
Persimmon tannin: $1
PLA filament: $1 ($50/kg)
used PET bottles: -
Temperature sonsor: $2
Total: ~ $30
What parts and systems will be made?
Water collection unit
Water filtration unit
Water storage unit
Water purification unit with thermometer
What processes will be used?
Computer-aided design: some parts
Computer-controlled cutting: press-fit box
Computer-controlled machining: back carrier, solar water
3D printing: connectors
Electronics design, input devices, etc: thermometer
Straw rope making and ropework by hand: rope
Bamboo basket weaving: umbrella-like parts
What tasks need to be completed?
Design and make some components
Make and test a device to measure water temperature
Do a trial digital archiving of handwork
Fabricate a prototype product
What questions need to be answered?
How about the demand-supply balance of water utilization?
How do you monitor and ensure the safety of water?
What is the schedule?
Collect the materials - until 24 May
Design and make the components of a prototype - until 30 May
Fabricate and Test a prototype - until 2 Jun
Prepare for final presentation - until 4 Jun
Wow will it be evaluated?
Sustainability (environmental, economical, and social aspects)