Aug 13, using the grind stone add ores / crystals or any other items into the bottom block's top left slots to be ground, and right clicking on the crank to grind the ores. if there are no more items left to grind, the crank will stop turning. the crank will break into few stick on over usage, if the wooden crank.Beamnova w grain mill molino de maiz electric dry wet food grinder for tacos corn flour rice nut commercial industrial grinding machine (blue) $195.99 $ 195. 99. free shipping. navaris stainless steel food mill - rotary food mill vegetable strainer potato masher grinder with 3 milling discs, 1 quart capacity - dishwasher safe.