def METHOD_NAME(x):
    outer = Cylinder((x, 0, -1), (x, 0, 1), coil_r2)
    inner = Cylinder((x, 0, -1), (x, 0, 1), coil_r1)
    top = Plane((0,0,coil_h/2), (0,0,1))
    bot = Plane((0,0,-coil_h/2), (0,0,-1))
    return ((outer - inner) * top * bot, (outer, inner, top, bot))