Ring-Rope-Puzzel 1

A ring-rope of string-ring puzzle. One should release the ring without (of course!) cutting the rope. I found a similar puzzle under the name "Pillar and ring puzzle", which has the same solution as the one here. If you can't find it yourself the instructions are easily found on the internet.

The puzzle can be printed using one STL-file. Maybe you need supports for the little balls. Otherwise one can use the separate STL-files to print each of the components seperately (1 thing, 1 ring, 2 box