On Tue, 18 Oct 2011 07:35:48 -0700 (PDT), "
wrote:

On Oct 18, 10:23*am, Ignoramus25480 ignoramus25...@NOSPAM.
25480.invalid wrote:
I thought that "tool balancers" have been around forever, no?


Yes but this one uses a easily obtained spring and can be made at
home.

Dan

Goodness, I've got three of these around the farm. I used car leaf
springs to zero balance very heavy things. I didn't even think it was
worthy of a note to RCM as they are so common. Guess I should have got
a patent about 20 years ago when I built the first one.

Karl



Karl