Make a Ball Mill in 5 Minutes : 4 Steps Instructables
Wiki says quot;A ball mill is a type of grinder used to grind materials into extremely fine powder for use in paints, pyrotechnics, and ceramics.quot; Many instructables refer to United Nuclear Ball Mills. Their small ball mill cost between 70 and 80 dollars. For no more than 30 and in 5 minute you can build a ball mill of appreciable performance. Check out my other Instructables: MAKE A HIGH