Alex sez, "You recently did a blog post of a 3D printed cube with 28 gears which was 3d printed fully assembled -- which I designed. However since this post, the cube has improved greatly, lubricated with a PTFE lubricant; I have also created a motor attachment to allow the geared cube to run autonomously.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.