Summary

Several cube skeletons rotated about their main diagonals and fused together.
To minimise overhanging edges, it's been turned so a diagonal is pointing upwards; and a plinth added.

Instructions

Printed out on a Replicator, ~7cm tall using default ReplicatorG settings (except the platform temperature was increased to 110Â°C). Full support (internal + external) and a raft were used - hours of fun pulling the support out with tweezers and an X-Acto knife. (It will probably print with just external support, but I haven't tried it yet.)

OpenSCAD generator file included.

Skeletal Cubes