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Old 17-08-2020, 10:40 PM
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5ash (Philip)
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Sky watcher secondary screws question

Hi, does anyone know the size of the thread on the 3 screws that adjust the secondary mirror on a 10” skywatcher flex tube Dobsonian. I want to make something similar to bobs knobs
Philip
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Old 20-08-2020, 11:16 PM
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5ash (Philip)
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OK found out by removing one screw and going through my collection of screws. Its an M4 screw. Have ordered some suitable M4 barrel knobs from eBay.
Philip
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