Hi Chris,


On Fri, Aug 29, 2008 at 6:06 PM,  wrote:

>
>
> Hi Meredith,
>
>        In your final version, you could replace the 'hinge' springs with
> round bars and two figure of 8 wire loops in tension. This could give a
> system very similar to the Streckheisen STS-1 vertical suspension. You could
> probably extend the period further this way, but you may be limited to about
> 6 seconds due to the large rate of change of the spring modulus with
> temperature.


*Know what you're saying above...but can't quite picture it connection wise
with this present setup; i.e., lower "mast" figure 8 bar to end
of boom bar, or base plate bar to end of boom bar?  I'd think the main
springs would really need alot of force/tension to lift the boom/mass
and also put the figure 8 wire pivot under sufficient tension to maintain
such.

*While we're at it, I don't remember ever seeing a Streckheisen 1 ~
spring/hinge/figure 8 close up on the web; proprietary I suppose.
I see nothing via Google or its images that illustrated such.   Do you have
a rough draft of such?


>
>        Maybe also try using thinner / narrower short lengths of spring
> mounted ~horizontally in compression? Maybe even a safety razor blade
> flexing? Or pairs of blades taken from multi-blade razors? Have fun!


*The above varieties should be fairly easy to try.

Take care, Meredith



>
>
>        Regards,
>
>        Chris
Hi Chris,


On Fri, Aug 29, 2008 at 6:06 PM,  <ChrisAtUpw@.......> wrote:






Hi Meredith,



       In your final version, you could replace the 'hinge' springs with round bars and two figure of 8 wire loops in tension. This could give a system very similar to the Streckheisen STS-1 vertical suspension. You could probably extend the period further this way, but you may be limited to about 6 seconds due to the large rate of change of the spring modulus with temperature.


*Know what you're saying above...but can't quite picture it connection wise with this present setup; i.e., lower "mast" figure 8 bar to end
of boom bar, or base plate bar to end of boom bar?  I'd think the main springs would really need alot of force/tension to lift the boom/mass

and also put the figure 8 wire pivot under sufficient tension to maintain such.  

*While we're at it, I don't remember ever seeing a Streckheisen 1 ~ spring/hinge/figure 8 close up on the web; proprietary I suppose. 

I see nothing via Google or its images that illustrated such.   Do you have a rough draft of such?   
 




       Maybe also try using thinner / narrower short lengths of spring mounted ~horizontally in compression? Maybe even a safety razor blade flexing? Or pairs of blades taken from multi-blade razors? Have fun!


*The above varieties should be fairly easy to try. 

Take care, Meredith

 






       Regards,



       Chris