RE: [ATM] my 20" mirror edge condition

["Richard Klappal" <klappal@xnet.com>]

Down at the 'cheap tool place' you should be able to find diamond files that
can be used. I have a set that cost $7.95 for a 3-file set--coarse (150),
medium (300), and fine (400) files (don't think those are really grit
sizes). They seem to work much nicer than the carborundum stones I've used
before (and they're cheaper, too).

Rich


-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net]On Behalf
Of Ken Lowther
Sent: Thursday, 24 June, 2004 20:11
To: atm@atmlist.net
Subject: Re: [ATM] my 20" mirror edge condition


Quoting David  Williams <dwilliams1128@earthlink.net>:

> Hello
>
> My 20" mirror is just about done with polishing, but the edge is
> still rough with about bumps and pitts of about 40 to 60 grit.
> Should I remove these?  How should I romove these?  I've tried to use
> a belt sander and use rough sanding belt oif about 60 grit; but it
> didn't come off.  I've heard that even the edge of the mirror should
> be smooth because that it will trap grit and will be bad when
> aluminizing.  Is this true?
>

I use a dremmel with a diamond bit and plenty of water.  Caution.  Don't
electrocute yourself.  I've been dinged for saying this before. ;)


Hermit, holed up in Youngstown, Ohio
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