Face-Centered Cubic Unit Cell (truncated)

This is a model of a face-centered cubic unit cell showing how partial atoms are included in the unit cell proper. The intended purpose of this thing is to use in a chemistry or materials classroom so that students can see the 3-dimensional aspects of the crystal structure. One possible use of this thing is to print multiples of this model so that they can be stacked to show how unit cells add together to generate an extended lattice.