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* The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the <nowiki> <ref> </ref> and <references/>  </nowiki>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: <ref> web page: Department of Energy (DOE) Landscaping and Energy Efficiency, DOE/GO-10095 (1995) Available: http://www.eren.doe.gov/erec/factsheets/landscape.html</ref>
* The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the <nowiki> <ref> </ref> and <references/>  </nowiki>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: <ref> web page: Department of Energy (DOE) Landscaping and Energy Efficiency, DOE/GO-10095 (1995) Available: http://www.eren.doe.gov/erec/factsheets/landscape.html</ref>
<ref> "Cultivating and Tilling, Why , How and When." Cultivating and Tilling, Why , How and When. N.p., n.d. Web. 26 Nov. 2015. </ref>
<ref> "Cultivating and Tilling, Why , How and When." Cultivating and Tilling, Why , How and When. N.p., n.d. Web. 26 Nov. 2015. Available: http://www.midwestgardentips.com/cultivating.html </ref>
<references/>  
<references/>  
<nowiki>
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]].
</nowiki>


[[category:OSAT 3D-Printable Designs]]
[[category:OSAT 3D-Printable Designs]]

Revision as of 04:17, 27 November 2015

Hand Cultivator

Created by Matthew Andres Template:Statusboxtop Template:Status-design Template:Status-prototype Template:Status-Model Template:Status-verified Template:Boxbottom

Abstract

  1. Paragraph description of the OSAT - why is it Appropriate? What need does it fulfil? Are there case studies you have found of a technology being used successfully?
  2. A Completed Hand Cultivator can be seen on the right
    Hand Cultivator.jpg
  3. Link to Thingiverse page where customization can be done: http://www.thingiverse.com/thing:1158335/#files

Bill of Materials

CAD Files

STL

Tools needed for fabrication of the OSAT

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

Skills and Knowledge Necessary to Make the OSAT

  • There is no special skills needed to make this tool.

Technical Specifications and Assembly Instructions

  1. If any changes to the design want to be done, open the SCAD file and adjust the parameters.
  2. Slicing instructions
    1. Fill % = 100
    2. Speed = 50 mm/sec
    3. Layer Height = .1 mm
    4. No support Needed
    5. Make sure prongs are facing up
  3. Print time with above settings will be about 13 Hours
  4. There is no assembly time
Demoing Tool Use in Weeds/Dirt, Gravel, and Wood Chips
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Common Problems and Solutions

  • A problem I had when printing my hand cultivator was warping and peeling off the bed during the print. If I were to print it again I would try using the brim feature to help reduce this problem.

Cost savings

Cost of creating this hand cultivator

  *Filament needed: 126 grams
  *At a cost of $23 a kilogram the total cost of the tool is $2.89

Commercial Equivalents

  *Equivalents range from $3.74 (cultivator 1) to about $21 (cultivator 2)
  *They range in materials from composites to most of them being made of metal. 

Saving amount

  *The savings are anywhere from $.85 to $18.11
  *The percentage of the cost is from 77.27% of the cost of the cheap one to 13.76% of the expensive one

Gallery

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]

[2]

  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
  2. "Cultivating and Tilling, Why , How and When." Cultivating and Tilling, Why , How and When. N.p., n.d. Web. 26 Nov. 2015. Available: http://www.midwestgardentips.com/cultivating.html
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