Re: [ATM] Not tde or tue, important oblate spheroid, ellipsoid

["Mitchell R" <funnybone101@embarqmail.com>]

Um, as I was the one who first posted that response, let me elaborate....

The CoC stroke I use is 1/3 D with no over hang on the back stroke (i.e.
there will be 2/3 of the mirror radius over hanging on the "side" away from
me at the end of the stroke, but on the return I stop before there is any
over hang) and it is dead centre over centre. This always gives me a great
sphere that is very smooth. I will say that the stroke length is varied a
little all the time (this is due to my not being a machine), but the average
is 1/3 of the mirror diameter.


* A little more confused now. You say no overhang on the back stroke so I am
thinking you only push forward then come back to center, and not toward you.
You say 2/3 *overhanging* that would mean the center is off the lap, how do
you keep it from tipping? Or do you mean 2/3 on the lap, 1/3 overhanging?

I too worked at a bench for some time. I always but forward and back motion
in though. I never thought to do otherwise. All books I read said forward
and back to make a stroke, but hey what works, works!

Mitch

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