This puzzle functions both as a rubik's cube and a spinner to keep you from getting bored! The current files are the third iteration of the puzzle and have holes for 4x2 magnets to make sure the puzzle stays aligned and add weight to the outer ring of the puzzle to keep it spinning longer. While they magnets are not manditory they are advised. The puzzle also has "holes" on the inside to add weight to the outside of the puzzle which you'll probably notice when you slice the puzzle. The artifacts are totally normal.
Because this puzzle uses extentions there is no cutting or sculpting needed to make the puzzle. Most of the pieces print without or with little support.
The number of copies of each part that you have to print are denoted by the number at the end of the part (eg print 3 of edge1_3). Roughen up the mini 3x3 with 50-100 grit sand paper and glue the extensions onto the cube. After that glue the 4x2 magnets into the slots in edges and corners. When magnetizing the pieces make sure that you keep the polarity of the corners and edges consistent (if you're confused just look up how to magnetize a 3x3 on YT)
You need a mini 3x3 to make this cube. The one I used can be bought here for a couple bucks and comes with a removable keychain: thecubicle.us/mofang-jiaoshi-mini-keychain-cube-30cm-p-9716.html