An octahedral atom for a molecular model kit! Whether you want a octahedral atom in a specific colour, just need a few more than what your set include, or if the real Molymods are too pricey for you, here you go I guess.

This is Molymod-compatible and accepts Molymod bond linkages. It is 23 mm in diameter, the standard Molymod atom size.

Some common suitable atoms include sulphur (yellow), cubic crystals, or a huge variety of metal complexes.

File does not include anything other than the atom itself. More atoms and geometries are coming soon.

I used 3 walls and 25% gyroidal infill, which is more than enough strength given the small spherical shape. You can increase the wall count/infill if you want it a little heavier (mine is 3.4 grams, significantly lighter than a genuine Molymod).

You can find the tetrahedral version here.