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lx90 with turned down edge
Hi all
I have a second hand LX90 with a turned down edge on the primary that I want to mask-off. I don't want to remove the collector and reach down the OTA to the primary mirror but want to get at it by removing the mirror cell from the bottomof the OTA. I have tried to pull it off after removing all bolts etc but there is absolutely no budging it! Any experience of this sort of thing out there or any advice?
many thanks
John
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