$50. Homemade rock crusher - YouTube. Aug 14, 2013 . Cheap and easy to make rock crusher. . Great idea , definitely carry some weight behind every punch. Q1) what size specimens to start with. Goldquest 1400 Impact Mill - Gold Rush Trading Post. Goldquest 1400 Impact Mill - Portable rock crusher for gold prospectors or landscape professionals. . This crusher will make powder from 100 to 300 mesh in seconds IF you want that. But if you don't, .