Dear ATMers,
Today we finished the #1200 grits. It means that all grinding stages of the mirror has been finished. Polishing will come next.
However before commencing polishing a series of preparation has to be done. These include making the mirror stand, Foucalt tester, tester stand……etc etc - small jobs but quite time consuming.
We will try to keep the project proceeding with appropriate pace.
Best regards
Chan Yuk Lun
13 September 2013
The making of 26 inch DK telescope -3, #1200 done.
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- 註冊時間: 週四 09 10月, 2003 21:06
The making of 26 inch DK telescope -3, #1200 done.
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- After the #1200 grit, the surface of the mirror is very smooth, so smooth that it reflects at gracing angle.
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