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Old 22-08-2019, 12:47 PM
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doug mc
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Join Date: Feb 2007
Location: Mt Tamborine
Posts: 587
Cooling my classic cassegrain

Thinking of attaching a small computer fan to the front dust cover on my GSO C.C. Doing it this way with the rear port open should help cool down. What is a good material to use for a dust filter to place on the outside of the fan? Thanks.
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