Sierpinski Fractal

6 Levels with Stand.stl

Hinge Ball transforming Fidget Toy

All.stl

Uekitahedron Fidget Toy

Triangle.stl

Gear Fractal Fidget Toy

Gear Fractal.3mf

Spiralized Octet Truss Modular Snap Struts

Display Only.stl

Throw Gear Ball Fidget Toy

All.3mf

Magnetic Parallelepiped Blocks

This simple shape can be used create numerous complex and interesting 3D tilings and formations.
The parallelepiped is essentially an octahedron with two tetrahedrons attached to opposite faces, so the tiling is based on the octahedron and tetrahedron pattern found in an octet truss.
The holes are sized for 1/8" cylindrical neodymium magnets, 1/32" long. This size of magnet was selected for cost reasons and to minimize the repulsive forces between the magnets at each tip. This size of magnet is not very strong on its own but suffices when there are multiple faces joined together. If you choose to scale the model larger, you will want to use larger magnets.
The six magnets at the two tips are all inserted with the same polarity, the remaining six magnets around the center are inserted with opposite polarity.
It is a good idea to clean the holes out first with a 1/8" drill bit. CA glues works well.
See here for a video on how to assemble the first and second level cuboctohedron: https://youtu.be/Fpc0BToJeA0 
The first level cuboctohedron is made with 12 individual parallelepiped shapes, the second level cuboctohedron is made with 36 individual parallelepiped shapes


Planetary Gear Cube Fidget Toy by Ruven Bals

Planetary Gear Cube by Ruven Bals.3mf

Dual Hexahedron Fractal

Piece.stl

Shift Cube Fidget Toy

All Multicolour.3mf

Tetrahedron Octahedron

Octa Cube Fidget Toy

Octahedron Cube by Ruven Bals.3mf

Tangled Tubes

Tangled Tubes Assembled Display Only Do Not Print.stl

Octahedron

Octahedron.stl

Planter dice polyhedron / Set of 3 / Easy print

Icosahedron numbers hole.stl

Octahedron Solid

Octahedron Solid.stl

Octahedron

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Sierpinski Fractal

Hinge Ball transforming Fidget Toy

Uekitahedron Fidget Toy

Gear Fractal Fidget Toy

Spiralized Octet Truss Modular Snap Struts

Throw Gear Ball Fidget Toy

Magnetic Parallelepiped Blocks

Planetary Gear Cube Fidget Toy by Ruven Bals

Dual Hexahedron Fractal

Shift Cube Fidget Toy

Tetrahedron Octahedron

Octa Cube Fidget Toy

Tangled Tubes

Octahedron

Planter dice polyhedron / Set of 3 / Easy print

Octahedron Solid