Wiki says "A ball mill is a type of grinder used to grind materials into , For no more than $30 and in 5 minute you can build a ball mill of appreciable performance , Lead ball for shooting out of black powder rifles should work fine and are easy to , A bullet only needs a few grams of powder, so what do you think half a.
A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing processes, paints, pyrotechnics, ceramics and selective laser sintering It works on the principle of impact and attrition: size reduction is done by , The grinding chamber can also be filled with an inert shield gas that does not react with.