def METHOD_NAME(self):
    d = self.diameter
    r = d / 2
    t = self.thickness
    p = 0.05*t
    l = self.lugs
    a = 180 / l
    self.alignmentHoles(outer=True)
    with self.saved_context():
        self.lowerLayer()
    self.moveTo(d/2 - 1.5*t+p, 0, -90)
    for i in range(l):
        self.polyline(0, (-2/3*a, r-1.5*t+p), 0, 90, 0.5*t, -90, 0, (-4/3*a, r-t+p), 0, -90, 0.5*t, 90)