(Created page with "=Template= ---- Copy the wiki markup below to your page to use as a template ---- {{777}} ==Title of the device or system == Project developed by [your name linked to you...")
Copy the wiki markup below to your page to use as a template
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{{777}}
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==Title of the device or system ==
==Corn Crusher ==
Project developed by [your name linked to your user account]
Project developed by [[User:adhought|Andrew Houghtaling]]
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You can help Appropedia by contributing to the next step in this [[OSAT]]'s [[:Category:Status|status]].
You can help Appropedia by contributing to the next step in this [[OSAT]]'s [[:Category:Status|status]].
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==Abstract==
==Abstract==
# 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?
# With two small printed parts and two springs, my corn crusher can do what its name implies: crush corn. This device is supposed to replace the mortar & pestle by making it easier and less labor-intensive to grind corn into flour. The contributes to solving OSAT Goal 2: zero hunger
# Picture of completed print using your printer [[Image:Wood_WorkingClamp_Parts.png|200px|right]]
[[Image:corncrusher_assembly.jpg|400px|right]]
== Bill of Materials==
== Bill of Materials==
# Provide a full BOM -- Materials needed for fabrication of device and alternative materials if they are not available, prices/sources of non-printable parts
* [[http://www.thingiverse.com/thing:1942477]]
## Upload and link to all source files from open source CAD
## Upload and link to all STLs
== Tools needed for fabrication of the OSAT==
== Tools needed for fabrication of the OSAT==
# [[Athena Build Overview| MOST Delta RepRap]] or similar RepRap 3-D printer
# [[Athena Build Overview| MOST Delta RepRap]] or similar RepRap 3-D printer
#
# Two small springs to fit into the circular holes of the housing
== Skills and Knowledge Necessary to Make the OSAT ==
== Skills and Knowledge Necessary to Make the OSAT ==
* If you used special skill – link to relevant wikipedia or wikiversity articles/courses
* N/A
== Technical Specifications and Assembly Instructions==
== Technical Specifications and Assembly Instructions==
# 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.
# Print settings for both pedal and housing:
# Include print time estimate
* Layer Height: 0.2 mm
# Include assembly time estimate
* Shell Thickness: 1.0 mm
# Including drawings or pictures of the device at stage of assembly at minimum. (http://www.appropedia.org/Special:Upload)
* Include common mistakes/problems to avoid in building your OSAT and how to overcome them
== Cost savings==
* If your solution is not a low cost one then it is not really appropriate.
# Estimate your costs
# Find a commercial equivalent
# Calculate $ savings and % savings
==References==
#[[Image:Housing.JPG|thumb|right]]Print the housing. {{clear}}
* 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>
#[[Image:Pedal123.JPG|thumb|right]]Print the pedal (Note: there is corn dust on the pedal from previous use). {{clear}}
<references/>
#[[Image:Springs123.JPG|thumb|right]]Insert the springs into the housing. {{clear}}
<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
#[[Image:corncrusher_assembly.jpg|thumb|right]]Insert corn into the middle square hole of the housing. Insert the pedal into the housing. Begin crushing by placing the device in both of your palms and squeezing the pedal into the housing. Alternatively, place the crusher on the ground and use your feet to push the pedal down. {{clear}}
====
=== Common Problems and Solutions===
*In some underdeveloped nations, it is common to spend an entire day grinding grain with a mortar & pestle. This device can grind corn although I'm not sure if it is quicker than a mortar & pestle. One clear advantage is that this corn crusher can be operated by the hands or by stomping on the pedal with your feet. If your hands get tired, you can just use your feet. While you could grind more corn by making the hole bigger, the applied crushing pressure on each kernel of corn would go down since the area is increased. If a future designer does increase the hole size, it is not advised to increase the area by much. [[Image:IMG 20161203 012946282.jpg|right|200px]]{{clear}}
== Cost savings==
* One link = Two main brackets, two connector brackets, two spacer rings
* Approximate cost for housing: $0.30
* Approximate cost for pedal: $0.20
* Approximate total cost: $0.50
* A primitive mortar & pestle would be made out of stone or wood; it would not be bought. Rather than money being saved, it would take less time to grind corn.
With two small printed parts and two springs, my corn crusher can do what its name implies: crush corn. This device is supposed to replace the mortar & pestle by making it easier and less labor-intensive to grind corn into flour. The contributes to solving OSAT Goal 2: zero hunger
Two small springs to fit into the circular holes of the housing
Skills and Knowledge Necessary to Make the OSAT
N/A
Technical Specifications and Assembly Instructions
Print settings for both pedal and housing:
Layer Height: 0.2 mm
Shell Thickness: 1.0 mm
Bottom-Top thickness: 0.6mm
Fill Density 20%
Print Speed: 100 mm/s
Print Temperature (PLA): 200 C
Flow: 100%
Print the housing.
Print the pedal (Note: there is corn dust on the pedal from previous use).
Insert the springs into the housing.
File:Corncrusher assembly.jpgInsert corn into the middle square hole of the housing. Insert the pedal into the housing. Begin crushing by placing the device in both of your palms and squeezing the pedal into the housing. Alternatively, place the crusher on the ground and use your feet to push the pedal down.
==
Common Problems and Solutions
In some underdeveloped nations, it is common to spend an entire day grinding grain with a mortar & pestle. This device can grind corn although I'm not sure if it is quicker than a mortar & pestle. One clear advantage is that this corn crusher can be operated by the hands or by stomping on the pedal with your feet. If your hands get tired, you can just use your feet. While you could grind more corn by making the hole bigger, the applied crushing pressure on each kernel of corn would go down since the area is increased. If a future designer does increase the hole size, it is not advised to increase the area by much.
Cost savings
One link = Two main brackets, two connector brackets, two spacer rings
Approximate cost for housing: $0.30
Approximate cost for pedal: $0.20
Approximate total cost: $0.50
A primitive mortar & pestle would be made out of stone or wood; it would not be bought. Rather than money being saved, it would take less time to grind corn.
