PSN-L Email List Message

Subject: Re: 3 wire "X" suspension ?
From: "meredith lamb" paleoartifact@.........
Date: Fri, 17 Oct 2008 19:07:35 -0600


Hi Chris,

Your suggestion is perplexing; perhaps you really mean rotational movement?

Being short of a actual working model, it would appear likely that the wires
will touch at the "x" junctions.  One thought I have is that on
the bottom plate (or on put on the top plate), one might have 2 of the 3
wires slightly vertically elevated via a spacer to get away hopefully
from such contact.  Of the two spacers, they may each need to be different
heights.

Take care, Meredith
On Thu, Oct 16, 2008 at 5:54 PM,  wrote:

> In a message dated 2008/10/15, paleoartifact@......... writes:
>
> Its seemingly more likely to instead have the mass underneath the bottom
> "plate" for perhaps better period adjustment range.  See:
> http://seismometer.googlepages.com/3wirexsuspension
> New and "strange" yes, but interesting.
>
>
>
> Hi Meredith,
>
>        I would advise making the twin wires have a wider separation at the
> top than the attachement to the bottom plate. This will tend to inhibit
> sideways motions.
>
>        Regards,
>
>        Chris
>
>
>
> **************
>
Hi Chris,
 
Your suggestion is perplexing; perhaps you really mean rotational movement?
 
Being short of a actual working model, it would appear likely that the wires will touch at the "x" junctions.  One thought I have is that on
the bottom plate (or on put on the top plate), one might have 2 of the 3 wires slightly vertically elevated via a spacer to get away hopefully
from such contact.  Of the two spacers, they may each need to be different heights. 
 
Take care, Meredith
On Thu, Oct 16, 2008 at 5:54 PM, <ChrisAtUpw@.......> wrote:
In a message dated 2008/10/15, paleoartifact@......... writes:

Its seemingly more likely to instead have the mass underneath the bottom "plate" for perhaps better period adjustment range.  See:
http://seismometer.googlepages.com/3wirexsuspension
New and "strange" yes, but interesting.


Hi Meredith,

       I would advise making the twin wires have a wider separation at the top than the attachement to the bottom plate. This will tend to inhibit sideways motions.

       Regards,

       Chris
       



**************


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