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Crayford Focuser

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John Purdy	06/05/2018 21:34:35
431 forum posts 252 photos	After reading Neil's lead editorial comments in issue #265 of MEW about the passing of John Wall the designer of the Crayford Focuser I remembered that I had copied the original ME article many years ago intending to make one for my 6" scope. The one I had made when I built the telescope when I was 15 was slightly less than satisfactory. The Crayford didn't get built, though, till a good many years later when I saw an advert in Sky & Telescope for the first(?) commercial one by JMI. Here are some photos of my version of the Crayford Focuser, including the patterns for the two castings used, and my original 1 1/4" focuser.
Bob Mc	07/05/2018 06:55:17
231 forum posts 50 photos	Nice job John..
Neil Wyatt	07/05/2018 11:31:56
19226 forum posts 749 photos 86 articles	Nice one John, mine is waiting for me to remake the spindle housing, my DRO slipped and I ended up making the top too thin to take the required grub screws. Neil

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