!




mat1 = c
mat2 = d



material mat1

prism_   4, 0.015, 

    -a/2, 0, 15,
     a/2, 0, 15,
     a/2, b, 15,
    -a/2, b, 15


addz 0.015
addy 0.95
addx -a/2+0.06

call "handle_1" mat2

addz -0.015
mulz -1

call "handle_1" mat2
