Re: [ATM] Making the pitch tool

["John Stephen" <atmlist.net@johnstephen.org>]

Thanks for the tip.  I haven't started grinding it down yet (I'm still 
feeling a little disheartened) so I'll take your advice and try just backing 
up to the 12u stuff.

By the way everybody, when I was referred me to this group for guidance on 
making my first mirror they praised how helpful and friendly people here 
are.  I'm happy to say that I agree completely -- everybody has been very 
helpful, given great advice, and I've never been made to feel like a dolt 
for not knowing what I'm doing.  Thanks very much for that :-)

- John
----- Original Message ----- 
From: "Bob May" <bobmay@nethere.com>
To: <atm@atmlist.net>
Sent: Monday, October 18, 2004 1:24 PM
Subject: Re: [ATM] Making the pitch tool


> John, if you haven't started grinding yet, you will only need to go to 12
> micron to get that 2" out of the ROC.  Better to go slower with the 
> grinding
> than to overshoot to the other side.  Do a wet of wide rough grinding type
> strokes and then a wet of spherizing strokes and see where things are. 
> I'll
> bet that you'll be almost there the first set.  Do leave yourself a little
> long on ROC (maybe 1/2") as this will be taken up in the polishing and
> figuring.
> Bob May
> bobmay@nethere.com
> http://nav.to/bobmay
> http://bobmay.astronomy.net
>
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
> 


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