USAPyro's Guide to Harbor Freight Ball Mill Modification
USAPyro's Guide to Harbor Freight Ball Mill Modification posted in Tools and Tooling: I just redid my mills properly today with more than just tape rings to expand the 1. Make 23 rings around your drive roller with black tape the same as the inside diameter of some PVC pipe. (You can use a different type of pipe too.) For the 6lb model use 3 rings.