I have two running now and am preparing to make changes. I used =
speaker magnets plus a five lb piece of lead on the boom which is over =
30 inches long and 5/8 thick. I am thinking of imbedding a ball bearing =
in the end of the shaft, adding another 5 lbs of lead and putting the =
coil of wire on the boom instead of on the base, making the magnet =







 

  
I have two =
running now=20
  and am preparing to make changes. I used speaker magnets plus a five =
lb piece=20
  of lead on the boom which is over 30 inches long and 5/8 thick. I am =
thinking=20
  of imbedding a ball bearing in the end of the shaft, adding another 5 =
lbs of=20
  lead and putting the coil of wire on the boom instead of on the base, =
making=20
  the magnet stationary.