Re: [ATM] Latest series 8 Updated pictures of 8"f6 mirror............

[Jim Burrows <burrjaw@earthlink.net>]

At 2006-12-02 08:44 +1030, John and Bernadine Murray wrote:

>Another few laps with 1/3rd coc should fix it we think. I'll look into whats
>required for a pitch hardness tester.

I think the old pros pushed their thumb-nails onto a cooled pitch sample 
for 1 minute with ca. 1 lb force.  If the dent came out about 1/4" they 
figured they were good to go.

So you can REALLY see what works with pitch hardness, temperature, TOT/MOT, 
stroke type & length, etc., etc. ad infinitum, try taking and posting some 
Foucault measurements along with the pretty pictures which are SO open to 
interpretation.

         -- Jim Burrows
         -- mailto://burrjaw@earthlink.net
         -- http://home.earthlink.net/~burrjaw
         -- Seattle N47.4723 W122.3662 (WGS84) 

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