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Large Mirror Making Made Easy...

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#1 RLK1

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Posted 18 September 2020 - 07:13 PM

https://www.cnn.com/...great-big-story



#2 MitchAlsup

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Posted 19 September 2020 - 01:58 PM

They did not show the mirror being spun while the glass was molten.



#3 stargazer193857

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Posted 19 September 2020 - 09:39 PM

They spin it as an alternative to hogging, not as an alternative to polishing.
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#4 Oregon-raybender

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Posted 19 September 2020 - 09:42 PM

It only reduces the amount of glass needed to grind into shape. The surface is not accurate enough after spinning, there is 

still a lot of processing needed.

 

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