PSN-L Email List Message

Subject: Re: Spring for AS-1 type vertical seismometer
From: Dave Nelson dave.nelson@...............
Date: Tue, 29 Nov 2011 19:54:32 +1100

Ahhh yes!!!
Thanks Richard :) thats great

if the PDF is 5meg or smaller just email it to me directly  DONT email to 
the PSN
else it will clog up everyones email downloading!!  haha  and you wont be 

I guess all I really need now is a few measurements.
1) length and width of base
2) length of boom
3) height of upright
4) how far up the upright from the base is the hinge?

I have no idea where here in Sydney I would find a suitable spring
probably going just have to experiment with a few and see what happens  :)


At 03:11 PM 28/11/2011 -0800, you wrote:

>Dave - I have uploaded new pictures with more detail of the hinge area. 
>Take a look and let me know if you need more detailed pics. Also I have 
>the plans in a PDF that I can send you that came from Kay. Or, maybe I can 
>upload them here?
>Hope I didn't leave out anybody comments or questions.
>Rich Schneider


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