A 3d printed filacore (filament core) magnetic core with 20 slots for edge-core/corner-core magnets. although this is titled as for the 2021 WRM, it will probably fit several other Moyu puzzles. likely, the RS3M 2020 and 2021 variants. This Thing only includes files for this core. I may later add different corner foot fittings, but because those are so specific, and this core is more universal i thought they'd be better seperate.

Non printed materials you will need and instructions for assembly:
-Needle files
-super glue (preferable uv super glue)
-4 wide by 2 mm thick n35 neodymium magnets (20 pcs)
For assembly, the first thing you want to do file down the inside of each magnet slot to make room for the magnets. I specifically designed this for filament printers so no tough geometry. (that being said feel free to print this in resin). Once filed down, put glue on the edges of each slot and insert magnets. insert magnets into the smaller half-slots on only one half of the core. if you don't have uv glue i found it really nice to make a sort of poor-man's fiber glass by putting some paper behind the glue and magnets (see photo) this keeps everything secure, and you don't have to hold on to it until it sets. assemble by putting the two halves together over the core of the puzzle and add glue to the portions of the filacore that meet. I don't like adding glue to the puzzles stock cores as it's really hard to remove if you need to. Good luck printing. if you need any help, best is to comment here or message me on the Speedsolving.com forums, my username is 1x1wrholder!