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Mark Harry
Post Laureate
Reged: 09/05/05
Posts: 3398
Loc: Northeast
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Re: trying to polish a flat
10/21/09 03:38 PM
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I think perhaps you're right??? We need Ed to confirm this. But you may want to rethink whether the edge is a different ROC. Convex fits are "dangerous" as far as interpreting certain defects are concerned. Could be that it's closer than you think as far as regularity is concerned.
I'd be really interested if you can polish such a small piece by hand the way you're doing it. The method makes sense. I've never been able to do such a small piece by itself and have it come out reasonably flat to say 1/8th wave surface error. I'm rooting for you!
Mark
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So many projects, so little time!
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