Re: [ATM] ritchey cretians

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

Interesting - as a novice to this whole optical fabrication thing,
I am not familiar with the details of current practice in design
and using of machines for working glass, so I may be talking through
my hat here... but why is it your ambition to never use machines to
make mirrors? I should think that (in principle at least) it should
be possible to make a grinding/polishing machine that would give full
control of the profile of the work and better blending of the surface
figure than the normal hand methods (even for glass of more modest size)...

     **Quite the opposite actually. Machines do the exact same motion over
and over and over and over (I think you get it ;) so small errors are
multiplied many times. With hand work no two strokes will ever be exactly
the same so they blend very nicely if you keep them all reasonably the same
length/pressure.

Mitchell 

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