a medium circle next to a small semicircle
for i in range(HALF_INF):
    forward(EPS_DIST*2)
    left(EPS_ANGLE)
for i in range(HALF_INF):
    forward(EPS_DIST*2)
    left(EPS_ANGLE)
penup()
forward(8)
left(0.0)
pendown()
for i in range(HALF_INF):
    forward(EPS_DIST*1)
    left(EPS_ANGLE)