Thread: Issues collimating 10" Reflector
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  #6  
Old 07-04-2020, 05:44 AM
Malcolm
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Malcolm is offline 		 
Join Date: May 2015
Location: Lismore NSW Australia
Posts: 242
To prevent gouging of the secondary mirror holder by the secondary adjustment screws cut two circular plastic washers from a 2L milk jug and place them between the mirror holder and the spider.
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