April 12, 2026
Description
This is a packing puzzle, called Rollercoaster and designed in 2018 by Laszlo Molnar. He retains all copyright and so only use for personal use.
The goal is to insert the 3 pieces fully inside the 3x3x3 space of the cage. Ideally you do this without poking or touching the pieces once inside. I will admit, I sometimes use something to help move them along.
The frame is in two parts. I printed at 0.2 layer and used support for the opening as shown in the pic. Glue the top to bottom. One of the pieces has 2 parts. Glue one part to another to get the 3 pieces.
See the video below for more information on the puzzle and for a solution.
License:
Creative Commons — Attribution — Noncommercial — NoDerivatives