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Re: ATM A sphere/Figuring
Long wide strokes start at one side, and move across the face in as big
of 'W' as you can manage, without the top piece tipping off the edge.
4" f/1 calls for soft pitch or a star lap.
--
Clear skies, Mel Bartels Programmer/Analyst, amateur astronomer
Eugene, Oregon, USA homepage: http://www.efn.org/~mbartels
mailto:mbartels@efn.org atm, atm-digest list-owner
Motorize A Dob: http://zebu.uoregon.edu/~mbartels/altaz/altaz.html