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 ...

Position the Glass or Tumbler: Adjust the rotary axis to the right position for your glass or tumbler. Insert it into the rotary fixture, ensuring it’s centered and balanced to rotate smoothly. Adjust ...

In order to turn a rough semiprecious stone into a beautiful piece of art, there are generally two options. You could wait a few hundred or even thousands of years for water and sand to polish the ...