Felix Wulff on tumbling


I assume that you have familiarised yourself with choice of barrel, grit sizes, quantities, tumbling times, rpm of the barrel and required actions between grit changes.See the following website for a step by step guide: go to Google, type in geology.com and select instructions for tumbling and polishing.

There could be several issues preventing you from obtaining good results in the final stages of polishing and I will try and highlight a few of the many causes: