This is a ball mill used for refining materials into a fine powder. [Jpoopdog] built it in two parts, a base and the tumbler chamber. The base itself is build using LEGO wheels as rollers.

Dive into the world of Lego ball-bots as we build and test different spherical remote-controlled robots. From the pendulum design to the chaotic globe, each ball-bot brings a unique twist to robotics.

Would you like to nab this Dragon Ball LEGO set? Let me know in the comments ... comics, anime, video games, and more! Sign up here and never miss a scoop. By signing up, you confirm that you ...