Open Source Flour Mill
Main > Food and Agriculture > Food Storage and Processing
Workbench mill, corona corn mill derivative
Something that bolts on a table, can be fitted with stone or metal mill heads, is powered by hand or bike or motor or wind or donkey...
Corona grain mill derivatives are very common in America, but cost $50 for shipping to Europe (4.5kg weight. They were devised by US patent in 1909 (apparently)(where is the patent?)
The two hard parts to develop are the stone or metal head, and the drill bit.
Wondermill sell a 'stone burr' or 'metal burr' set for 45-55$ [[1]]. Also available in Europe for 35-40 EUR. The cheapest option is to use 2 paving slabs, cut with an angle grinder in in polygon shape. Not sure about safety of grain ground with this artificial stone though, best use natural stone?
Hammer mill design
This mill is worth replicating by Factor e Farm:
http://www.memagazine.org/backissues/membersonly/june05/features/ducttape/ducttape.html
Download plans: