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Fly,
There are more than just those two companies making them - like
www.taabs-int.com, www.imiproducts.com and some reference to
http://www.tirelife.com/
An article that discusses that is at
http://www.landlinemag.com/Archives/2003/Jun03/equipment/tires_life.htm
There are several independent reviews of the devices and all indicate
they work. There is an interesting demo machine that Centramatic.com
distributies to ilustrate the balancing effect on a demo wheel. A demo
video is available at http://www.centramatic.com/Demo/video2.mpg
As far as I see it does not violate conservation of angular momentum.
A free body in space will always be in angular balance about its CM
whereas that isn't the same case for rigid bodies rotating about a
fixed axis - maybe that is the key: there extra bodies free to move.
As to why they are not used more... probably the extra cost is
prohibitive, to say an automobile where a $20 tire balance will do. But
for big trucks it can pay off.
I'm not promoting the devices, but just have an open mind. Its so easy
to put down others and not be creative oneself.
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Re: Real time continuous Prop balancing
