CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Hardening rails

Posted by Brian
on 2003-11-23 07:32:09 UTC
Hi, dockguys on ebay has all kinds of thompson rod , usually running
auctions, but if you email them they probably have what you need. cul brian
f.
----- Original Message -----
From: <JanRwl@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, November 22, 2003 9:45 PM
Subject: Re: [CAD_CAM_EDM_DRO] Hardening rails


> In a message dated 11/22/2003 12:35:07 PM Central Standard Time,
> johnatl@... writes:
> Maybe I could put it in the oven at 500deg?
> JJ:
>
> MANY "in here" have already answered your question several times in more
than
> one way, but here's ANOTHER answer from an old [deleted] who has used
LOTSA
> Thomson stuff: Their "Class L" is case-hardened to RC-60 (that's like a
new
> file), and PRECISION centerless-ground to some precision measured in
"tenths".
> It is STRAIGHT within, what, 0.001" per foot, or something like that.
There
> is NO WAY without oversize rod, straightening-equipment, and
> centerless-grinding equipment that you will APPROACH the required
precision for proper function
> with linear ball-bearings. Just bite the bullet and PAY those OUTRAGEOUS
> prices Thomson charges, and be DONE with it!
>
> I have found that paying for the GOOD stuff will COST you less in the end,
if
> you hope or expect a piece to last until the following Monday!
>
> Jan Rowland
>
>
> [Non-text portions of this message have been removed]
>
>
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Discussion Thread

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