Many people, when asked, what is a tesseract, will refer to the 1962 Madeleine L’Engle book A Wrinkle in Time. She uses the term to describe a fold in space used by galactic travellers. I first remember seeing a tesseract as a child, watching Carl Sagan explain the difference between a two dimensional, three dimensional and four dimensional world. I did not until recently revisit the concept and was intrigued by the ramifications of such a shape. I decided that I needed to try to build one.