Tetra-Klein-Box

This is a study of a surface that is like a Klein Bottle, but with 4 "tubes." Hexagonal end caps have been left out for viewing. Picture ants starting out in the inner space, then crawling out through any of the 4 tubes, across the rectangular passages, back through the alternate 4 tubes. Following the available paths, the "ants" can traverse every surface, both inward and outward facing, ending back at the beginning. Made with vZome