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Old 23-11-2013, 08:43 AM
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Satchmo (Mark)
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Satchmo is offline
Join Date: Dec 2005
Location: Sydney
Posts: 1,858
Originally Posted by alpal View Post
I thought that ion milling obtained 1/100th wave performance?
Thats nice advertising about what Ion milling is capable of in a research situation .

Have a look at the link on that page showing final ion milled results of an RC 24" - P-V is 1/10 wave - this would probably have been around 1/4 wave if only rotational symmetric polishing had been carried out ( easy enough to do with pitch polishing )
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