Quote:
Originally Posted by glend
Mark, et al, maybe there needs to be a separate topic thread on mirror quality issues and the cost benefit (or not) of custom hand made verse robotic.
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Glen - All commercial mirrors in the world are mostly machine made - the `boutique ' low production mirrors ( ie Galaxy , Lockwood, Kennedy etc ) may get some localized retouching by the human hand with the mirror rotating face up on a machine and a human being rubbing a polisher on top ( maybe 10% ) of the total production time . This last touch up can produce a very smooth accurate surface, better than one made quickly totally by machine and an operato . Some can do this by machine only . Zambuto mirrors are 100% machine polished with no 'hand' work but a skilled machine operator .
What I was referring to by computer machine polishing is a system where the test results are automatically fed into a computer which designs the next run of machine strokes until completion - no human interpretation involved in the loop. This is the system claimed by GSO for the RC optics.
This info should obviate the need for another thread .