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RE: [PSUBS-MAILIST] How to make a spring?

Title: How to make a spring?
Alec,
Actually its almost that simple. I would recommend using your lathe to do the winding  though. You will probably have to experiment with cylinder size to compensate for spring back but thats basically it . Any decent machine shop text book will illustrate this method in the lathe section. Or look at this book ,"  How to run a lathe 1942 " by South Bend Lathe Works in the Lindsay catalog at www.lindsaybks.com . I highly recommend this book , its a bargain at only $7.95. . I have made a lot of springs using this method.
Dan Lance
 
 
----- Original Message -----
From: Smyth, Alec
To: personal_submersibles@psubs.org
Sent: 1/9/2010 6:53:55 PM
Subject: [PSUBS-MAILIST] How to make a spring?

Hi all,
I'm needing some stainless springs 3.5" in diameter, and my usual industrial suppliers don't stock anything near as large. These would be quite soft springs which will keep the Sofnolime in the scrubbers compressed so that free flow paths don't develop if it settles (the scrubbers will be horizontal tubes). 

I know some of you have made your own springs in the past. Any tips on how to do so? Surely there's a little more to it than winding a stainless wire around a cylinder?

many thanks,

Alec


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