Such contraptions are known as, unsurprisingly, rotary rock tumblers. But what [Fraens] has put together here is a vibratory tumbler, which…well, it vibrates. If this was Rockaday we might go ...

Continue reading “Vibratory Rock Tumbler Bounces On Printed Spring” → Posted in classic hacks , Tool Hacks Tagged 3D printed parts , electromagnet , rock tumbler Tumble Polisher Smooths ...

Of the three available tumblers on Harbor Freight, only the Chicago Electric model has customer reviews. With more than 280 reviews, it holds a score of 4.4, with over 210 reviews being five stars.

If you're someone who values style and might prefer a tumbler with more flair, the Stanley cup is available to shop in quite a few more colors than the Owala; there are 39 different shades of the ...

Read more about our Product Review Guidelines here. All of the internet hype surround these cups has led many — frankly, myself included — to ask earnestly: is the Stanley tumbler really worth ...