Sealable Puzzle Pill Box/Bolt

prusaprinters

<figure class="media"><oembed url="https://vimeo.com/739588359"></oembed></figure><p>The cylindrical pill container end cap/hex-nut has a left-hand thread that few people undo successfully. &nbsp;Most try to unscrew the end nut assuming it is a right-hand thread. &nbsp;Of 20 people who tried to open this puzzle, only two were successful. &nbsp;Both are doctors. &nbsp;The center nut has a standard right-hand thread that is a “red-herring” (distraction).</p><p>The center nut is printed concurrently on the bolt and cannot be removed, but turns freely. &nbsp;One of the pleasures of life is putting the skinny hex in a vice and breaking the center nut loose with a bit of cracking noise. &nbsp; (See photo.)</p>