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Windmillprint-crop.jpg Yes it is possible to print a windmill with a 3D printer for a fraction of the cost of manufacturing one conventionaly. Learn more about open-source 3-D printing of open source appropriate technology for sustainable development.


Appropriate Technology Engineering 305 class
Parabolic basket and tin can solar cooker. The objective of this project is to create a solar cooker out of local invasive species and waste materials. We want to create a device that can pasteurize water and be an alternative to the use of fossil fuels for cooking food. Our criteria for evaluating the appropriateness of technology are: use of local materials, efficiency, durability, ease of use, ease of construction, cost, impact on environment, impact on culture/lifestyle, education or expertise needed for construction.

Overall this was a successful project. We were able to meet our goal of pasteurizing water. The solar basket can pasteurize water in a quart container in about an hour with optimal conditions. If we were to make the solar basket version 2.0, here are some changes we would make: 1. double up the blackberry runners so that the ribs of the basket are stronger; 2. use another material instead of pampas grass because it causes lumps on the basket's surface, maybe something softer; 3. use all large can lids, of the shiniest quality; and 4.construct the rings that hold the parabolic shape out of a less flexible material than the aluminum and wire that we found.

Decreasing turbidity to optimize solar water disinfection

Salt and sunlight can actually be used to clean water with the SODIS method.

Helen Keller
The mystery of language was revealed to me. I knew then that ‘W-A-T-E-R’ meant the wonderful cool something that was flowing over my hand. That living word awakened my soul, gave it light, joy, set it free.

Helen KellerW
Bicycle wheel
Transport. According to the Appropriate transport manual, sustainable transportation is a strategy for the flow of people and goods across the Earth that meets the needs of the present without compromising the ability of future generations to meet their own needs. Transportation accounted for 32.6% of US green house gas emissions in 2005. In addition to the widely publicized environmental consequences of driving automobiles, it is also socially and economically costly:
  • Land use: Parking and roads use valuable land resources.
  • Transportation equity: Driving, with all of its expenses, costs the average U.S. household $7,000 per year per vehicle.
  • Economics: Most of the money spent on driving leaves a local economy, weakening it.
  • Community: Travelers outside of their cars interact more with their physical environment and each other.
  • Safety: The presence of pedestrians and cyclists make our neighborhoods safer from crime. Conversely, 42,000 Americans are killed in car accidents every year.
  • Health: Increasingly, Americans are suffering from weight-related illnesses. This is partly attributable to the decline in active transportation use and availability.

Building and encouraging alternatives to the single-occupant vehicle, or, for short "alternative transportation," is imperative. Some alternative transportation advocates have taken to using the term, sustainable transportation, instead of the previous, widely-used "alternative transportation" term to avoid sidelining their interest from the mainstream.

Many efficient, practical, and inexpensive sustainable transportation technologies already exist, meaning activism, policy work, and planning research is most often more crucial to developing sustainable transportation than technology development.

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ENGR 215 Introduction to Design projects – Fall 2011: Flock House: The Fall 2011 semester of ENGR215 Introduction to Design worked with the Flock House to research, design, and build sustainable and inspiring systems for two living systems that will be traveling through and interacting with various New York neighborhoods.

Fall 2011 ENGR 215 Intro to Design Projects - Flock House
Plastic Plumage and Bird Cage
Corrugated plastic shell and one gallon milk carton shingles  
Aluminum Awareness
Aluminum can shingles and 2-liter bottle windows  
Poly Pod
Doors, windows, and planters made from ironed plastic bags and bubble-wrap, with umbrella awnings  
Geared-Up From the Feet-Up
Bicycle powered generator capable of generating 100+ Watts  
Pump'n Power
A handcar styled, two person, human powered, energy generator  
Hyper Visible Power Meter
A post-apocalyptic, bomb-like, display for the state of the Flock House batteries  
Window Shopper and Back Me Up
Flock House solar dehydrator and backpack solar dehydrator  

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