The Caution Cube

You can buy it, and various other mad devices, from the Oskar’s Puzzles shop at Shapeways.

I’ve been making a start in producing things for Shapeways to print in 3d. At the moment my shop is filling with street furniture for model railways. But I think I need to start learning how to use CAD if I’m ever to produce anything as complex as the Caution Cube.