This is an example of a site I hate:
http://opensourceecology.org/gvcs/
They've re-invented the tractor and 3-point / PTO implements, but they've done so very VERY poorly, there are no instructions, everything is hand-wavy, etc.
It's condescending bullshit by "designers" who want to help third worlders with no realization that the best approach for an actual third worlder is to buy a used / discount version of the commercially available product.
For example, their cement mixer design is 25% done (whatever that means), and is going to cost about $1,000 in parts alone, or $1,800 in parts and labor.
Here's one that attaches to a tractor for $900 http://www.northerntool.com/shop/tools/product_200660639_200... and you can find similar items even cheaper on Alibaba.
A lot of these "let's help people farm!" websites are made by people who don't know anything about anything but seem to be compelled to do something so that they're "helping".
http://opensourceecology.org/gvcs/
They've re-invented the tractor and 3-point / PTO implements, but they've done so very VERY poorly, there are no instructions, everything is hand-wavy, etc.
It's condescending bullshit by "designers" who want to help third worlders with no realization that the best approach for an actual third worlder is to buy a used / discount version of the commercially available product.
For example, their cement mixer design is 25% done (whatever that means), and is going to cost about $1,000 in parts alone, or $1,800 in parts and labor.
Here's one that attaches to a tractor for $900 http://www.northerntool.com/shop/tools/product_200660639_200... and you can find similar items even cheaper on Alibaba.
A lot of these "let's help people farm!" websites are made by people who don't know anything about anything but seem to be compelled to do something so that they're "helping".