Making Green Sand From Kitty Litter For Aluminium Casting

I show how to test kitty litter for bentonite clay, grid the kitty litter to get a fine powder in a junk homemade ball mill and then show how I mix the sand and water to make the casting sand. You will need to experiment to see what ratio works best for you. If you want a filter like mine look for "Mesh Flour Sifter Sieve" on eBay. They are super cheap. Keep exploramenting and thank you for watching! Don't forget to subscribe for more! http://www.youtube.com/user/makerj101...