If you’re reading Hackaday, there’s a good chance you had a rock tumbler in your younger days. Hell, we’d put odds on a few of you having one rumbling away in the background as you read this. They’re ...

In this video, I demonstrate how a vibratory tumbler can effectively clean or finish small parts with minimal effort. Different media types are used for specific applications like removing paint, rust ...

When you polish the rough edges away, you discover a beauty that was always there but was just a little hidden. Using this strategy, a rock tumbler turns ordinary-looking rocks into gems. However, to ...