how much grain are you wanting to thresh? It can be as simple or fancy as you care to make it
,A heating contractor could probably supply squirrel cage blowers cheap or maybe even free from furnaces they replaced. Maybe an old air hockey table? Or a bigger sturdier table could be made from perfrated hardboard and a blower?
Hand threshing on a tarp, set up a box fan and pour it between buckets in front of the fan to blow away the chaff(did just that to separate garlic skins from cloves before I fall planted last fall, worked good) etc. Mixing seed could be done in a bucket or even small cement mixers are cheap? The internet is full of ideas for home made equipment.
Way back in the back of mind milling around are ideas for shelling and separating dryed edible beans, since I have lots of room to do so.
Edited by JD DANNELS, May 25, 2016 - 03:40 PM.