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Locally Delicious Kids Worm Bin

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|Image:IMAG0065.jpg|A complete worm bin without bedding
[[Locally Delicious]] The project outlined in this page is a small and Humboldt State University's [[Engr215 Introduction to Design]] class came up with a manageable worm bin design designed so that utilizes a small scale worm bin system kids ages eight to allow children of ages 8-12. The bin twelve can be constructed by kids recreate it, without the help of their parents , following the [[Locally_Delicious_Kids_Worm_Bin_inst|instructions we developed]]. This Giving a child the opportunity to build a worm bin enables kids them to get hands-on experience with composting and sustainable living. The final design consists of small water-resistant milk cartons that are easily accessible, recycled, and inexpensive.allows them to see waste transformed into something useful!
After the projects have been finished and released, material regarding the details of the various projects will be compiled and published tentatively due out Fall 2011. The design outlined below is a product of [[Image:215 Team.jpg|thumb|left|Fig 1: Team OnychophoraOnycophora]], a group of the Introduction to Design [[Engr215]] students.
[[Locally Delicious]] is an organization run through based in Humboldt County, California, designed with a commitment to better the community as well as raise raising awareness on certain issues. The design of the Kids only worm bin is a branch importance of this group's work with community and sustainable living. [[Locally Delicious]] and Humboldt State University's [[Engr215Introduction to Design]] students, designing sustainable and easily reproducible project for class collaborated on a system series of schools projects in the areaSpring of 2011. After the These projects have been finished and released, material regarding the details are geared to help raise awareness of the various projects importance of living and eating healthy, especially among children, and will be published as a compilation in a Locally Delicious' upcoming book tentatively due out , "Lunch box Envy."The worm bin described in this page was engineered by the fall Engineering 215 design team Onycophora. The "Wormland" worm bin is specifically designed for children ages eight to twelve, and therefore follows a unique set of 2011considerations. In the design of this bin size, cost, and the ability of the child were all taken into account. The final design outlined below is consists of various materials found in every home and drugstore. Old milk cartons and tape make up the design, and scissors and a product pencil are the only tools required for assembly. The finished design will be able to process roughly a handful of [[Onycophora]]organic material per week with proper maintenance, as described in our building instructions.  == Problem Statement and Criteria== The problem statement addressed by the "Wormland" bin project was to engineer a group small and manageable worm bin that can be recreated and used by children between the ages of 8 and 12 years old based on the aforementioned [[Engr215]] studentscriteria of Locally Delicious. A table further discussing our criteria is outlined below
==Problem statement and criteria=={| class="wikitable sortable" style="border:#A3BFA3; background:#F5FFF5"|-style="text-align:center; font-weight:bold; background:#CEF2CE;"! | Criteria! | Weights! | Description
| Cost
| 10
| The cost of the project was geared towards being very minimal to fit the budget of kids. Most of the material to be used can be acquired at little to no cost to the child.
| Maintenance
| 4
| The amount of time related to upkeep of the worm bin will be minimal and sustainable for an estimated time of six to twelve months.
| Materials
| 7
| Materials apart from the worms themselves will not be difficult to obtain for the targeted age group or their parents, i.e. outside of the home, local hardware stores, or local grocery stores.
| Efficiency
| 9
| Within two months Efficiency is defined as the amount of worm bin will be able to produce castings provided that produced within a certain amount of area in the worm bin is properly cared for and is given an adequate amount of food waste.
| Build Time
| 8
| Build The time should be minimal, i.e. able it takes to be completed over build and implement the course of one weekend by the targeted age groupworm bin.
| Educational Value
| 5
| The worm bin design will enable the targeted age group kids ages 8-12 years old to both learn about the general design of a worm bin and to help them understand the concepts of waste and consumption.
| Durability
| Safety
| 510| The materials and construction methods used in the design of the worm bin will not be harmful to the targeted kids ages 8-12 years old age group’s health or well being.
| 10
| The design ability of children, age 8-12 years old, to reproduce the worm bin will be easily reproducible by the targeted age group, given adequate parental help and supervision.
==Description of final project==
Our Project The design is composed of empty half gallon milk or juice cartons. Inside of the cartons is a migration hole that allows worms the access to both cartons. Worms are fed on one side of the bin while castings can be removed from the other carton. This process will be repeated as the worms will migrate towards the food and leave castings behind. Each time the food is digested new bedding is inserted. In addition, this [[Locally_Delicious_Kids_Worm_Bin_inst#Modular_Design|modular design]] allows for expansion of the worm bin to meet the needs for digestion of larger quantities of food. 
{{Gallery|width=350|height=375|lines=2|align=right|File:Cost_breakdown_ony1.png|Breakdown of the materials needed and associated costs.}}Our cost was very minimal because most the materials were reused materials, the table to the right shows of our costs and total for the project. The worms are the highest expense for the project.   [[File:Cost chart photoThe total cost of the project was free.jpg|thumb|Breakdown The project had worms donated from another worm bin. The total cost of the materials needed and associated costsproject without donations is less than twenty dollars.]]
==Testing Results==
To test the cardboard milk/silk/juice carton worm bin, we placed a cut off strip of the carton in a glass of water. This test was meant to determine how well the material of the carton would react to extreme weather conditions over a period of time when cut. We also placed a cut up strip of the carton which we had taped back together in the glass of water to determine how well the tape would hold up. After leaving both tests in the glass of water for two weeks now, the strips of carton and tape have taken on little to no damage. Because of these promising results, we have determined that cardboard milk, silk, or juice cartons are a good material to use for the Kids Worm Bin design.
When testing with children at Alice Birney School in Eureka, California, the results were positive. Three nine year old children constructed the bins with the help of two Onycophora team members, and appeared to enjoy the process. The most difficult steps for the children were those involving poking holes. It was found that not only do pencils work better than pens, but milk cartons are easier to penetrate than the provided Dole brand juice cartons. In addition, the cartons became structurally unsound after the cutting of the migration holes, making it more difficult to poke holes for aeration and for the top flaps.The favorite part of the project for the children we tested with was filling the bins with bedding. They enjoyed shredding the newspaper and picking grass and leaves to make a comfortable "home" for their worms.
==Instructions for Making The Worm Bin==The following link provides instructions for replicating our design:[[Locally_Delicious_Kids_Worm_Bin_inst|Instructions for Making The Worm Bin]]==
==Discussion and next steps==
|Image:215 Team.jpg|Team Onychophora
The overall design of the kid's worm bin is such a simple one that it allows for various small changes of material and location. The "bin" itself could be constructed of any waterproof, easily accessible material, not just milk or juice cartons. The design works well both inside and outside, and can be easily placed in any area due to its small size. Though working for a variety of ages, testing results led us to believe that children eight to twelve years of age will be fully capable of building a "Wormland" bin if provided with adequate instruction.
The next steps of the project will be the publishing of the designs and findings in the book compiled by the organization Locally Delicious, and its implementation by students. We hope that anyone who attempts this project is satisfied with their results and learns something about red worms and waste in the process.
[[Category:Engr215 Introduction to Design]]
[[Category:Locally Delicious]]
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