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_Augustus_ posted a topic in Science & Spaceflighthttps://imgur.com/a/rmNql https://imgur.com/gallery/xdyAP I long ago finished making my first telescope mirror, a 6" f/8, which you can read about from pages 1-5. It will not be used in a telescope as it has a number of chips and a fracture that reduce its usefulness anyway. I worked on it from May to July 2017, with a gap due to technical difficulties and a trip to Alaska. The mirror was made with a 1969 Edmund Scientific kit. It was intended to be f/5 but I ran out of grit and couldn't afford more at the time. I have also finished a complete 6" f/4.5 Dobsonian. The mirror blank was given to me by a friend at Stellafane, and I managed to grind, polish, and figure it in August 2017 - see pages 6 to 7. I star tested it and looked at Saturn on October 20th to confirm a good figure. First light was on October 27th. I rebuilt it in late July 2018. As of April 2018 I've also finished a 16" f/5 Dob. I attempted to make the mirror but that didn't turn out too well, so I got a replacement from a friend. Read about it from pages 9-10. Currently working on a 20" f/4 - read about it from page 10 onwards.