Impossible Ring Puzzle

At first glance this puzzle looks completely impossible — a solid structure with a ring that appears permanently trapped inside,but the secret is surprisingly simple. A hidden magnet pulls the inner rod to one side, allowing the ring to slide out once you make the right move.The fun comes from how unexpectedly easy the solution is once discovered.This puzzle is easy to print, easy to assemble, and makes a great desk toy. Printing & HardwareThis model is almost fully 3D printed. The only required hardware is:1× Ø12 × 2 mm neodymium magnetDowel pins: 1. 3× Ø5 × 50 mm 2.1× Ø5 × 40 mm (must be steel)You can get the pins from Maker's Supply, but note: The outer 3 pins for the cage (50mm) from MakerLab are fine The inner pin (40mm) must be steel. (Maker's Supply pins are stainless steel and will not be attracted by the magnet)Magnet embedding stepThe housing is designed for a pause-at-layer magnet insertWhen the print pauses, add a small amount of superglue to the magnet pocketInsert