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Re: Rotary gap balancers
On Sun, 2 Jun 1996 22:25:37 -0600, Tesla List
<tesla-at-poodle.pupman-dot-com>, you wrote:
>The latest issue of _Projects In Metal_ has an article on making a
>balancing device for wheels such as grinding wheels, etc. It would be
>very useful for a rotary gap wheel as well. The device is basically a
>scaled up version of a hi-point balancer. The hi-point balancer is used
>by the model aviation hobby to balance propellers. I believe that the
>propeller balancer is too light duty to hold up a 10" disk of 1/4" G-10,
>but it is useful as a source of design ideas. You can check out one of
>these balancers (hi-point) at a hobby shop that sells radio control
>planes.
>
Chip,
Is that a stepped cylinder (1/4" disk on top of a 1/2" disk on
top of a 3/4" disk ...) balanced on a needle point. The rotor, prop,
or lawn mower blade is placed on the appropriate step and the
horizontal level is checked?
If so, I just bought it's big brother at Home Depot (a large hardware
store) for balancing lawn mower blades. About $8 US.
Is _Projects In Metal_ a magazine: Order info?, Book: ISBN?
Thanks for the tip. I'd not made the connection between balancing a
lawn mower blade and my rotary spark gap. All I needed was a nudge in
the right direction.
jim
[ ISBN: 0897-070X (IPM 0788155)
I'll try to describe it.
It consists of 4 disks 5" in diameter with ball bearing races in the
middle of each one. Mount two of the disks on uprights such that they
overlap somewhat. You should see an 8 on its side. You then place the
disk on a shaft. The shaft has cones on it for centering, and place the
shaft rotor assembly in the crotches of the 8's -- Chip ]