The core of the grinding stand is my Glatt grinder. An eight-to-one pulley reduction keeps it spinning at around 200 rpm. I built the framework from scrap angle iron and bolted it together like an erector set, adding 3⁄4” plywood for the bases. The hopper, actually an inverted stainless exhaust stack found at a salvage yard, holds over 30 pounds of grain. I soldered the ball valve on so I could regulate the flow.