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Subject: shim stock
From: S-T Morrissey sean@...........
Date: Wed, 15 Mar 2000 13:45:02 -0600 (CST)


Regarding shim stock for hinges or flexures:

In the event that C&H sells out of the shim stock that Jim has
posted info on, it can be obtained from McMaster Carr Supply 
(630 833 0300): (MC, VISA, by UPS)

In rolls of 0.005" x 6" x 50":
stock number 9502K14    alloy 302 Stainless Steel    $13.64
"      "     9504K18    half-hard temper brass         5.63
"      "     9020K41    spring temper phosphor bronze 10.95

Other materials are available in thicknesses from 0.001". I use 
the 0.002" brass for the box flexure for the new seismometer. 

Difficulties with the stainless are that it is almost unsolderable;
if you epoxy the hinges, rough up the stainless with 600 grit emory.
I use the office paper cutter to cut it into narrow strips.

Regards, 
Sean-Thomas
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Larry Cochrane <cochrane@..............>