cube_stl = """solid cube
    facet normal 0 0 1
        outer loop
        vertex 0 0 0
        vertex 0 1 0
        vertex 1 1 0
        endloop
    endfacet
    facet normal 0 0 1
        outer loop
        vertex 0 0 0
        vertex 1 1 0
        vertex 1 0 0
        endloop
    endfacet
    facet normal 1 0 0
        outer loop
        vertex 0 0 0
        vertex 0 0 1
        vertex 0 1 1
        endloop
    endfacet
    facet normal 1 0 0
        outer loop
        vertex 0 0 0
        vertex 0 1 1
        vertex 0 1 0
        endloop
    endfacet
    facet normal 0 1 0
        outer loop
        vertex 0 0 0
        vertex 1 0 0
        vertex 1 0 1
        endloop
    endfacet
    facet normal 0 1 0
        outer loop
        vertex 0 0 0
        vertex 1 0 1
        vertex 0 0 1
        endloop
    endfacet
    facet normal 0 0 1
        outer loop
        vertex 0 0 1
        vertex 1 0 1
        vertex 1 1 1
        endloop
    endfacet
    facet normal 0 0 -1
        outer loop
        vertex 0 0 1
        vertex 1 1 1
        vertex 0 1 1
        endloop
    endfacet
    facet normal -1 0 0
        outer loop
        vertex 1 0 0
        vertex 1 1 0
        vertex 1 1 1
        endloop
    endfacet
    facet normal -1 0 0
        outer loop
        vertex 1 0 0
        vertex 1 1 1
        vertex 1 0 1
        endloop
    endfacet
    facet normal 0 -1 0
        outer loop
        vertex 0 1 0
        vertex 0 1 1
        vertex 1 1 1
        endloop
    endfacet
    facet normal 0 -1 0
        outer loop
        vertex 0 1 0
        vertex 1 1 1
        vertex 1 1 0
        endloop
    endfacet
    endsolid cube"""

