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Old 30-07-2009, 08:06 AM
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stephenb (Stephen)
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LOL - They blow onto the back of the mirror, which, when I first heard about cooling fans in the Newtonian design many years, I thought was odd in a 'low to the ground' Dobsonian because I would imagine that this direction would blow up dust and dirt from the ground. This would not be a major issue to Newtonians on a higher mount. Obviously it's not a concern however.
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