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.

Polishing and Lapping (Very Fine); Finishing and Deburring; Suitable for Wet Applications; Chromatography, Frame Molding, Decorative, Filler and Extender, Instrument Calibration, Heat Transfer, ...

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.

Rock collecting is a hobby that has captivated people of all ages for thousands of years. Historical records in ancient Egypt and India tell stories of communities using “tumbling” systems to ...

We store the extra heat in cheap, inert materials such as sand, iron slag, or ceramic pellets. This eliminates the need for corrosive, high-maintenance molten salt, along with its other chemical ...

The images show a lead solder pellet, in red, at the bottom of the tumbler, but users shouldn't come into contact with it ...

Aurora police were able to locate and rescue a 15-year-old from a storm drain thanks to the help of two bystanders who joined the search.

The acclaimed Bristol artist kicked off a series of animal-themed murals in the capital on August 5, revealing a striking goat image with rocks tumbling down and a security camera observing it ...