RE: ATM 7/8th thick

["Depack, Ronald" <RDepack@howost.com>]

Hi Joe,

I'm working on a 16" plate glass f/4.6 and let me tell you it's tough.  I
finished polishing and am at the figuring stage. But when I'm finished I
will be pleased.  I cheated and put the blank in the scope on Sunday and
took a look.  I was amazed at the light it gathers.  the thing wasn't
collimated but the street lights look good.  Take a look
http://www.geocities.com/rdepack

There should not be a problem.  Use a long plastic door mat when grinding
and you should be fine. As for the figuring I will keep trying.

Ron DePack
Washington, NJ

-----Original Message-----
From: Joe Mayenschein [mailto:mayen1@mwt.net]
Sent: Tuesday, December 19, 2000 6:45 PM
To: ATM!
Subject: ATM 7/8th thick



How big has anyone gone with 7/8ths thick plate yet.

And for a thin mirror first timer how big would you
all think of recommending?

Joe

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