RE: ATM Figuring a 6" F4

["Banich, Howard" <Howard.Banich@nike.com>]

Hi Claude,

A full size tool can do a fine job parabolizing a 6" f/4, and would perhaps
be easier to control than a small sub-diameter tool. Assuming you start from
a sphere, a good parabola can be achieved with the classic W stroke.

Howard
West Linn, Oregon

 -----Original Message-----
From: 	Claude Serquet [mailto:claude.serquet@actant.com] 
Sent:	Friday, June 07, 2002 5:22 AM
To:	'atm@shore.net'
Subject:	ATM Figuring a 6" F4


Hello everybody,

I'm now in the late phase of polishing my 6" F4. What is the best to
figure such a mirror, full or a subdiameter tool ?

Thanks for any comment,
Claude