Foldable Tetrahedron that is printed flat and then folded into shape. Prints fast and all the sides of the tetrahedron are smooth. Can be used to explore the properties of a platonic solid or can make an LED light. Two tetrahedron can be glued together to make a prop power or magic crystal. Can also be used as painter's pyramids. Edge length is 40mm. Transparent panels: 0.2mm layer height, no infill, 3 bottom layers, 0 top layers. LED light example scale 140% and printed with 30% infill with natural PLA.