We dry the cobs either by hanging them in pairs over a wire or spread out on a bench. Over the winter, we gradually shell and sort the varieties according to "eating corn" and "planting corn." My main method of preparation is nixtamalising with lime.
Wood ash works too, but we like the taste of the lime-treated corn better. Once the kernels have swelled (usually after a few hours simmering on the fire), they get rinsed several times and rubbed to slough the skins off, then put through a hand cranked Corona wet mill and turned into masa. Hominy and posole are some other great things to do with nixtamalised corn.
Processing it this way gives you the greatest nutritional benefit and avoids the inputs required to grind a grain that is not too far away from
pea gravel in consistency. Tortilla press ideas
here.