material a

cylind 0.045, 0.0075

addz 0.045

prism_  21,     0.015,
           -0.03,     0.02,      79,
           -0.029239,     0.023827,      79,
           -0.027071,     0.027071,      79,
           -0.023827,     0.029239,      79,
           -0.02,     0.03,      79,
            0.02,     0.03,      79,
            0.023827,     0.029239,      79,
            0.027071,     0.027071,      79,
            0.029239,     0.023827,      79,
            0.03,     0.02,      79,
            0.03,    -0.02,      79,
            0.029239,    -0.023827,      79,
            0.027071,    -0.027071,      79,
            0.023827,    -0.029239,      79,
            0.02,    -0.03,      79,
           -0.02,    -0.03,      79,
           -0.023827,    -0.029239,      79,
           -0.027071,    -0.027071,      79,
           -0.029239,    -0.023827,      79,
           -0.03,    -0.02,      79,
           -0.03,     0.02,     -1


