|
Lynn,
Many thanks ! A sketch is worth a thousand words to some (Me) !
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2
-------------- Original message from Lehanover@aol.com: --------------
> In a message dated 04/15/2005 11:31 Central Daylight Time, keltro@att.net
> writes:
>
> << Lynn,
> A rough sketch would help my minds eye visualize all the parts
> of such a scale !! The pivot point for the bar is not clear to me....
>
> Thanks
> --
> Kelly Troyer
> Dyke Delta/13B/RD1C/EC2
> >>
>
> There is a sharpened bolt or screw on each side of the balance bar to keep it
> from rocking. The point of the hangers is higher than the pivot point, so the
> scale is very sensitive, like a tail heavy plane. As you can see, when the
> balance bar starts to move one way, it starts adding in a bit of mass from the
> bar as it passes over the pivot point. The pivot bar can be anything strong and
> long enough to span between the two jack stands. Or cement blocks, or
> whatever.
>
> Limit the travel of the pieces to just a bit. One inch is plenty. Start the
> setup with a level to get the same travel on both sides.
>
> Lynn E. Hanover
|