Thread: Making a 310mm Zerodur planetary mirror
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Old 28-12-2020, 09:39 PM
Stefan Buda
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Stefan Buda is offline 		 
Join Date: Jul 2013
Location: Melbourne, VIC
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I did the casting for the grinding tool substrate out of Ultracal 30. The top is flat - only the lens distortion is making it look curved.
It will be a tile tool.
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