How to use a cement mixer to tumble glass?

To use a cement mixer for tumbling glass, first ensure the mixer is clean and free of any debris. Add a batch of clean glass pieces, along with polishing media such as sand, glass beads, or tumbling grit, depending on the desired finish. Fill the mixer about halfway to allow enough space for movement, then run the mixer for several hours, checking periodically to ensure the glass is tumbling evenly. Finally, rinse the glass thoroughly to remove any abrasive materials before use.