Multimaterial filament is used to store shorter lengths of material. The entire coil is divided into 4 parts, with 2 parts differing only in numbering.
Assembly instructions: the parts are marked with numbers 1, 2, 3, and the upper part with all the numbers. Part 3 has a narrower inner diameter than the other parts, so it goes first. It is followed by part 2 and then part 1. The last part is part 123. The numbers on the last part are used to identify individual materials. Just stick a label on top of each number and write the name of the material and the melting temperature on it. G-codes are made on colorprint. I put two colors in there so that the coil looks good, but I also attached stl files so that it is possible to print the parts in one color, or even in a different layer height.