Quick and Easy Black Powder Ball Mill — Skylighter, Inc.
Homemade Ball Mill with Two OneGallon Mill Jars So, the question becomes, what would I recommend for a beginner''s ball mill to you right now? ... Optimizing the Ball Mill''s RPM Make sure the whole roller assembly now looks as it originally did, and rotates freely. There you go: A larger, 3/4inch diameter drive roller, simple as that.