Cassava (food) Press

Project developed by bchaupt

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Abstract

-A Cassava Press, or a general food press, is a tool used in many parts of the developing world for increasing the longevity of food by pressing part, or all of the liquid out of the food. Many cassava presses are very large (about the size of a washing machine) and allows for the village people to preserve a large amount of food at once, either for personal use or to sell in their micro-economy setting. The cassava press designed as a piece of open source hardware is a small scale press that could be used in a household, or for personal use if needed. Additionally, with minor design changes the press design could be adapted for other uses, such as for pressing ash to form activated carbon filters for use in rudimentary water filters.

Picture of completed print using

File:Name-of-your-image.png

Bill of Materials

  • 3D Printed Parts
    • Cassava Cylinder
    • Cassava Nut Plate (optional)
    • Cassava Top
    • Cassava Handle (optional)
    • Cassava Plunger


  • Purchased Parts
    • 5 1/4-20 nuts
    • 5 1/4-20 wing nuts or standard nuts
    • 5 1/4-20 x 7.5in threaded rods
    • 3 1/2-16 nuts (jam nuts if available)

Tools needed for fabrication of the OSAT

  1. MOST Delta RepRap or similar RepRap 3-D printer

Technical Specifications and Assembly Instructions

  1. Provide directions for print/assembly - be detailed enough in your “how to” to ensure that someone could construct the device from your description. Consider the elegance of IKEA like instructions.
  2. Include print time estimate
  3. Include assembly time estimate
  4. Including drawings or pictures of the device at stage of assembly at minimum. (http://www.appropedia.org/Special:Upload)


Common Problems and Solutions

  • When customizing parts make sure that:
    • holes are given proper tolerances appropriate to the printer being used
    • proper thickness is used where needed to ensure strength (depends on food being processed)
    • screen size that is used is appropriate for the food being processed

Cost savings

  • While the food press can be used for many different foods, there are not many commercial equivalents for "home" use. This item was compared to a sausage stuffer because of its similarity in operation. While the components are sized differently, if a larger cassava press was printed it could take the place of a commercial one.
  • A Low-cost sausage stuffer starts around $130 Low-Cost Functional Equivalent
  • Components for the printed cassava press:
    • $10 for fasteners (nuts and bolts)
    • Approximately $10 for filament used in all 3D printed parts
  • Total estimated cost reduction of $110

References

  • The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the <ref> </ref> and <references/> tags and can be in any format but should include all the information necessary for someone else to find the same information you did. For example: [1]
  1. web page: Department of Energy (DOE) Landscaping and Energy Efficiency, DOE/GO-10095 (1995) Available: http://www.eren.doe.gov/erec/factsheets/landscape.html

Based on the developmental needs addressed (e.g. food, heat, electricity, clean water, health care, etc.) be sure to label your device in the proper categories e.g. use [[Category:Water]]. Be sure to categorize your device so that it will be easy to find – for example “Low voltage connection basics” is categorized in [[Category:How tos]] [[Category:Electricity]] [[Category:Electric lighting]].

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