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Old 15-06-2020, 08:13 PM
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Sunfish (Ray)
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Join Date: Mar 2018
Location: Wollongong
Posts: 1,909
Thanks for that encouragement. I have three Pyrex mirror blanks given to me to work on. A rough ground 100mm f5 for practice . An f7 200 mm which I would like to regrind to F4 . And finally , once I can work out what I am doing , a blank 12 inch which may be sometime before I can get to.

I have just received my grinding materials, 80 , 220 , 600 silicon carbide , 25 micron and 14micron aluminium oxide as that was what I could get locally.

I have made a mirror cell for an old finished 8 inch f7 so I can the tube assembly and secondary assembly process sorted out.

Any tips starting out or advice about my mirror cell?
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