I saw one of these at a fair and just for fun tried to make one. It is roughly based on some pictures of one in a British museum dating back at least 1000 years. I acquired a piece of black Italian granite 100mm thick and cut it into a wheel about 420mm diameter, then drilled a 40mm hole 100mm through the centre with a concrete breaker then set about roughing and shaping it to what you see in the photo. Then drilled the handle hole and ground the feed spirals in the under side of it. I sourced a piece of 30mm bench top granite. This is thin but lighter than original for transport, and cut it to shape drilled a 35mm diametre hole in the middle then shaped the core from the 40mm hole into an axle then ground feed spirals in that too. The feed spirals (my idea) are designed to move the flour towards the outside and grind it at the same time . With a bit of fine tuning of the feed hole around the axle it all seems to work, you need to put the wheat through a few times then sift it out and what is left in the sift is put back into the feed hole. Hope this has been of interest to you .
Yours Terry
Well Terry, it is of enormous interest to me and I suspect, others.
Thanks for providing the photos and description.
2 comments:
Sheer genius! :)
You wrote marble instead of granite, two different beasts I'm told.
You're right about that Suz - the guy's a beacon of hope.
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