Thread: 406mm F4.5 String Truss Dob Project
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  #25  
Old 11-03-2007, 06:25 PM
astro_nutt
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Join Date: Mar 2005
Location: Melbourne
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Hi Ian..a very impressive project indeed!...just a thought on using a pair of fans to blow across the primary mirror..would you consider using an automotive pod type air filter to minimize dust?..
Cheers!
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