bicycle powered thresher,fan mill, and dehuller

Tool Concept
Ready to Build

Primary problem statement:
I am a These low cost grain processing tools give small farms the opportunity to dabble in grain and dry beans and I want a tool to make the cleaning of grain and dry beans possible on a small scale because my customers want pancakes and tacos .
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Links below to the complete plans for bike powered tools for small scale grain processing; a thresher, a fan mill/winnower, and a dehuller/flour mill. The plans guide a farmer or a fabricator through step-by-step instructions using wood, metal, and scavenged bicycle parts. The cost of materials is $200 per machine and the machines process about 1# per minute for each process. In a well equipped garage/shop the machines can be built in 20-40 hours each.
Documentation Wiki: 

The complete plans to build these tools are now on Farmhack! Here are the links:
youtube video playlist:

And here are the links to the webpages and the PDFs of the plans
The introduction:

The Thresher:
and the PDF:

The Fanning Mill:

and the PDF:

The dehuller/flour Mill:
and the dehuller PDF:

 To link to the full project description and pictures of the first prototypes, go to :

 This project supported by the Northeast Sustainable Agriculture Research and Education (SARE) program. SARE is a program of the National Institute of Food and Agriculture, U.S. Department of Agriculture.
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