I made this in 2011, using the laser cutter at the Maker Space, in Victoria, BC. The octahedron's faces are cut from acrylic, using a vector graphic I generated with a computer, python script. The sculpture was quite fragile, and it was dismantled when I tried to turn it into something else.
I revisited this in 2012, to create my puzzle kit, "Chiastix". See my ebay store to get one for yourself.