These files can be used to slice other spherical objects into 20-piece puzzles using a "difference" Boolean function in a program such as Blender. The slicers are based around the 20 sided icosahedron.
There are two design versions that result in puzzles that are held together by either magnets or interlocking pieces.
For the magnet design nubs create holes for magnets to be inserted in the printed piece to allow the pieces to hold together. The holes for the cylindrical magnets often print with small burrs inside, so it is a good idea to clean them out with a 1/8 inch drill bit before inserting the magnets. It is important to pay attention to magnet polarity or the pieces won't snap together! The pair of magnets on each edge are inserted with opposite polarity. Maintain the same pattern around each edge and across each piece. Use dab of CA glue to hold the magnets in place.
For the interlocking piece design it is advisable to maximize the quality of your print as any ridges in the finished pieces will prevent the pieces from sliding together easily. Expect to do some post-print cleanup with these prints.
For both design options there are small fillets on each edge to allow the pieces to fit together better and allow for easier removal from the build plate.
The files indicate the length of the edges, the length of the slicers, and the depth of the of the magnet holes. Specific file information is provided below.
