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[ATM] starting grit size

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Subject: [ATM] starting grit size
From: "Jonathan Lavoie" <atm@lavoielactee.net>
Date: Fri, 15 Apr 2005 16:18:11 -0400
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Hello,

I will begin soon the regrinding of my 16 inch to convert it from a gregorian to a Ritchey-Chrétien. The primary is around F3 and I have just minor modification to do. I poured my cement tool and will glue 1" tiles on it.

So at which grit size do you recommend to start grinding to make the tool match the mirror then remove around 0.3mm of glass?

Jonathan
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