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How Does Grinding Work?!?

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Posted by John/">John on June 10, 1999 01:30:08 UTC

I do know how to grind a mirror, but I don't know how it can grind out the concave shape in the glass? This is not that important, but I would like to know for my own sake. Also, is a ronchi test better than a focault test? And lastly, is a ten inch mirror a good start? I apreciate all of your help!!!! THANK YOU!!!!

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