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Makes logical sense Alex
My collimation is not perfect but good enough for my DSO imaging. I use a Cheshire for the secondary and 2 different lasers for the final check of both. I use a small metal rule to check alignment of the spider vanes
I need to replace the original primary mirror springs as they are next to useless When I get back to Sydney next week, Better Springs at Winston hills have the new springs I need
Thanks
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